# SizeMarker

> SizeMarker (https://www.sizemarker.com) is a precise dimension & spec annotation tool. It adds accurate dimensions, spec labels, focus spotlights, callouts, and contour lines to product photos, so buyers see exact sizes and details before they order — cutting pre-sale size questions and size-driven returns for foreign-trade B2B suppliers (furniture, industrial, building materials) and e-commerce sellers.

Key facts:
- Measurements are drawn with deterministic geometry, so marked dimensions stay accurate; AI assists with placement but never guesses numbers — unlike AI image generators, which restyle photos but cannot mark true sizes.
- Scope: buyer-facing spec diagrams, not CAD or engineering drafting.
- Annotation types: dimension, label, focus, marketing callout, contour. Coordinates are normalized (0-1) so annotations survive image resize and zoom.
- Runs in the browser, free to start, no install required; a desktop app is also available.
- Available in 12 languages: en, zh-cn, zh-tw, ja, ko, es, pt, fr, de, th, id, fil.
- Pricing (USD): Free plan $0; Pro $19.90/month or $118.80/year; Enterprise $29.90/seat/month or $178.80/seat/year.

## Core pages
- [Home](https://www.sizemarker.com/): product overview, features, and pricing
- [Pricing](https://www.sizemarker.com/pricing): Free, Pro, and Enterprise plans with prices and what each plan includes
- [Site map](https://www.sizemarker.com/sitemap): full index of tools, comparisons, guides and the dimension reference library
- [Return cost calculator](https://www.sizemarker.com/tools/return-calculator): free tool to estimate what product returns cost per order and per month
- [Spec sheet scenario](https://www.sizemarker.com/scenarios/spec-sheet): how suppliers turn product photos into buyer-ready spec diagrams
- [Furniture spec diagram maker](https://www.sizemarker.com/scenarios/furniture-spec-diagram): mark furniture width, depth, height, packed size, materials and weight capacity from a photo to prevent size returns
- [Industrial spec diagram maker](https://www.sizemarker.com/scenarios/industrial-spec-diagram): mark equipment dimensions, port positions and technical specs B2B buyers can quote from, no CAD required
- [Building material spec diagram maker](https://www.sizemarker.com/scenarios/building-material-spec-diagram): mark tile, panel and profile size, thickness and coverage from a photo
- [Best tools to add dimensions to product photos](https://www.sizemarker.com/best-tools-to-add-dimensions-to-product-photos): honest comparison of SizeMarker vs Canva, Photoshop, Photopea, Figma, Snagit and Google Drawings for marking dimensions and specs on product photos
- [Best spec sheet software for exporters](https://www.sizemarker.com/best-spec-sheet-software-for-exporters): 7 tools compared for building export spec sheets — Excel/Word for the data table, SizeMarker for dimension-accurate spec diagrams, plus Canva, Photopea, Affinity, Visme and Specright
- [SizeMarker vs Canva](https://www.sizemarker.com/sizemarker-vs-canva): side-by-side comparison for adding accurate dimensions and specs to product photos
- [SizeMarker vs Photoshop](https://www.sizemarker.com/sizemarker-vs-photoshop): side-by-side comparison for adding accurate dimensions and specs to product photos
- [SizeMarker vs AI image generators](https://www.sizemarker.com/sizemarker-vs-ai-image-generators): why generative AI image tools cannot mark accurate dimensions, and when to use each
- [Ecommerce returns & size statistics](https://www.sizemarker.com/ecommerce-returns-size-statistics): 30 sourced statistics on return rates, size/fit as the top return reason, and how images and specs affect buying
- [Standard product dimensions reference](https://www.sizemarker.com/dimensions): sourced standard-size charts (furniture, logistics, building materials) in metric and imperial, from ISO/ANSI/EN and established industry standards
- [Standard sofa dimensions](https://www.sizemarker.com/dimensions/standard-sofa-dimensions): standard sofa sizes by type (loveseat, 3-seat, 4-seat, sectional) in cm and inches
- [Standard dining table dimensions](https://www.sizemarker.com/dimensions/standard-dining-table-dimensions): dining table size by number of seats, plus standard height and clearance
- [Standard mattress sizes](https://www.sizemarker.com/dimensions/standard-mattress-sizes): US, UK and EU bed sizes in inches and centimetres, and why the same name differs by region
- [Standard pallet sizes](https://www.sizemarker.com/dimensions/standard-pallet-sizes): ISO 6780 and regional pallet dimensions (GMA 48x40, Euro EPAL 1200x800, Asian, Australian)
- [Shipping container dimensions](https://www.sizemarker.com/dimensions/shipping-container-dimensions): ISO 668 external and internal size, volume and payload for 20ft, 40ft and High Cube
- [Standard door sizes](https://www.sizemarker.com/dimensions/standard-door-sizes): US and UK/EU interior and exterior door dimensions and thickness
- [Standard desk dimensions](https://www.sizemarker.com/dimensions/standard-desk-dimensions): desk height, width and depth by type, plus ANSI/BIFMA sit-stand ranges and OSHA legroom
- [Standard bookshelf dimensions](https://www.sizemarker.com/dimensions/standard-bookshelf-dimensions): bookcase width, depth, height and shelf spacing (IKEA Billy + library shelving)
- [Standard wardrobe dimensions](https://www.sizemarker.com/dimensions/standard-wardrobe-dimensions): single/double/triple widths, hanging depth and long-hang vs double-hang rail heights (IKEA PAX)
- [Standard office chair dimensions](https://www.sizemarker.com/dimensions/standard-office-chair-dimensions): BIFMA G1 seat, backrest and armrest adjustment ranges in cm and inches
- [Standard coffee table dimensions](https://www.sizemarker.com/dimensions/standard-coffee-table-dimensions): height, size by shape and the two-thirds-of-sofa pairing rule
- [Standard steel drum dimensions](https://www.sizemarker.com/dimensions/standard-steel-drum-dimensions): 55-gallon / 200L drum diameter and height, plus 30 and 16-gal, per ISO 15750
- [Standard IBC tote dimensions](https://www.sizemarker.com/dimensions/standard-ibc-tote-dimensions): 1000L / 275-gallon caged tote footprint and height from Schutz and Mauser datasheets
- [Standard corrugated box sizes](https://www.sizemarker.com/dimensions/standard-carton-box-sizes): FEFCO 0201 RSC box styles, A-F flute grades, and USPS/Amazon FBA box size limits
- [Standard tile sizes](https://www.sizemarker.com/dimensions/standard-tile-sizes): ceramic and porcelain formats, thickness by use and nominal vs actual sizing (ISO 13006)
- [Standard plywood sheet sizes](https://www.sizemarker.com/dimensions/standard-plywood-sheet-sizes): 4x8 ft and metric panels, thickness nominal vs actual (a 3/4-in sheet is 23/32 in), per APA
- [Dimensional lumber sizes](https://www.sizemarker.com/dimensions/dimensional-lumber-sizes): nominal vs actual softwood sizes (a 2x4 is 1.5 x 3.5 in / 38 x 89 mm) per US PS 20
- [Standard brick dimensions](https://www.sizemarker.com/dimensions/standard-brick-dimensions): US, UK/EU, China and India brick sizes, and the nominal vs specified/actual distinction
- [Standard stair dimensions](https://www.sizemarker.com/dimensions/standard-stair-dimensions): rise, run/going, width and headroom limits by US IRC and UK Approved Document K
- [Standard countertop dimensions](https://www.sizemarker.com/dimensions/standard-countertop-dimensions): counter height, depth, slab thickness, backsplash and quartz slab sizes (NKBA)
- [Standard bed frame dimensions](https://www.sizemarker.com/dimensions/standard-bed-frame-dimensions): US Twin–Cal King, UK & IKEA EU bed sizes, frame-vs-mattress margin, headboard heights
- [Standard TV stand dimensions](https://www.sizemarker.com/dimensions/standard-tv-stand-dimensions): match stand width to TV size, media console depth 13.75–18.5 in, 42 in seated eye-level
- [Standard nightstand dimensions](https://www.sizemarker.com/dimensions/standard-nightstand-dimensions): 18–30 in wide, 12–30 in deep, 23–29 in tall matched to the mattress top
- [Standard export wooden crate dimensions](https://www.sizemarker.com/dimensions/standard-wooden-crate-dimensions): weight classes, ASTM D6039 4,000 lb limit, ISPM-15 marking, pallet-matched bases
- [Standard bulk bag (FIBC) dimensions](https://www.sizemarker.com/dimensions/standard-bulk-bag-dimensions): 35×35–42×42 in bases, SWL 5:1/6:1 safety factor, ISO 21898, U-panel/circular/baffle types
- [Standard gaylord box dimensions](https://www.sizemarker.com/dimensions/standard-gaylord-box-dimensions): 48×40 in GMA-pallet footprint, wall count vs capacity (500–2,500+ lb)
- [Standard window sizes](https://www.sizemarker.com/dimensions/standard-window-sizes): US size codes (2846, 3050), casement & sliding, UK/EU metric, nominal vs rough opening
- [Standard drywall sheet sizes](https://www.sizemarker.com/dimensions/standard-drywall-sheet-sizes): 4×8/4×10/4×12 ft, thickness 1/4–5/8 in, EN 520 metric, panel weights (ASTM C1396)
- [Standard dresser dimensions](https://www.sizemarker.com/dimensions/standard-dresser-dimensions): horizontal 50–70 in, tallboy 24–40 in wide × 40–60 in tall, 18–24 in deep, plus dresser-vs-TV width rule
- [Standard dining chair dimensions](https://www.sizemarker.com/dimensions/standard-dining-chair-dimensions): seat 18 in high, 16–20 in wide, 15–18 in deep, 10–12 in table clearance, 24–26 in per person
- [Standard bar stool dimensions](https://www.sizemarker.com/dimensions/standard-bar-stool-dimensions): counter-height 24–26 in vs bar-height 28–32 in seats, 10–12 in clearance, stool spacing
- [Standard kitchen cabinet dimensions](https://www.sizemarker.com/dimensions/standard-kitchen-cabinet-dimensions): base 34.5 in tall / 24 in deep, wall 12–42 in, pantry 84–96 in, 3-in width increments, IKEA SEKTION metric
- [Standard bathroom vanity dimensions](https://www.sizemarker.com/dimensions/standard-bathroom-vanity-dimensions): 32 in standard vs 34–36 in comfort height, 21 in depth, 24–72 in single/double widths
- [Standard crib dimensions](https://www.sizemarker.com/dimensions/standard-crib-dimensions): US full-size interior 28 × 52 3/8 in (16 CFR 1219), mattress ≥27 1/4 × 51 5/8 in, 2 3/8 in slat gap, EU EN 716 cots
- [Standard TV sizes](https://www.sizemarker.com/dimensions/standard-tv-sizes): 16:9 screen width & height for 32–85 in (55 in = 47.9 × 27.0 in), plus VESA mount patterns
- [Standard semi-truck trailer dimensions](https://www.sizemarker.com/dimensions/standard-truck-trailer-dimensions): 53/48/40 ft dry-van interior L×W×H, pallet count, US legal maxima, EU 13.6 m tautliner
- [Standard ISO tank container dimensions](https://www.sizemarker.com/dimensions/standard-iso-tank-container-dimensions): T11 20 ft frame 6058 × 2438 × 2591 mm, 21,000–26,000 L, tare, 36,000 kg max gross (ISO 668/1496-3)
- [Standard jerry can dimensions](https://www.sizemarker.com/dimensions/standard-jerry-can-dimensions): 5–25 L UN HDPE jerricans (20 L ≈ 292 × 246 × 389 mm), NATO steel 20 L can, UN markings
- [Standard wine bottle dimensions](https://www.sizemarker.com/dimensions/standard-wine-bottle-dimensions): 750 ml Bordeaux/Burgundy/Champagne height & diameter, 375 ml half, 1.5 L magnum, glass weight
- [Standard bucket & pail dimensions](https://www.sizemarker.com/dimensions/standard-bucket-pail-dimensions): 5-gallon pail 11.9 in top OD × 14.5 in tall, 1–3.5 gal sizes, HDPE wall, 240/pallet
- [Standard poly mailer sizes](https://www.sizemarker.com/dimensions/standard-poly-mailer-sizes): 6×9 to 19×24 in flat mailers, 2–2.5 mil wall, bubble mailer #000–#7, what fits each
- [Standard shipping label sizes](https://www.sizemarker.com/dimensions/standard-shipping-label-sizes): 4×6 in thermal label all carriers accept (USPS/UPS/FedEx/DHL), plus A6 and barcode sizes
- [Standard rebar sizes](https://www.sizemarker.com/dimensions/standard-rebar-sizes): US #3–#18 diameter/area/weight (ASTM A615), Canadian 10M–35M (CSA G30.18), European Ø8–Ø32 (EN 10080)
- [Standard steel I-beam sizes](https://www.sizemarker.com/dimensions/standard-steel-i-beam-sizes): AISC W-shapes (W12×26 = 12.2 in deep), American S-beams, European IPE/HEA/HEB (EN 10365)
- [Standard PVC pipe sizes](https://www.sizemarker.com/dimensions/standard-pvc-pipe-sizes): Schedule 40 & 80 OD/wall/ID for 1/2–6 in NPS (ASTM D1785), metric PVC-U Ø20–110 mm PN classes
- [Standard toilet dimensions](https://www.sizemarker.com/dimensions/standard-toilet-dimensions): 12 in rough-in, elongated 29–31 in vs round 27–28 in, 15 in standard vs 17–19 in ADA seat height, IPC/ADA clearances
- [Standard kitchen sink sizes](https://www.sizemarker.com/dimensions/standard-kitchen-sink-sizes): single 30–33 in, double 33/36 in, ~22 in front-to-back, 8–10 in deep, base-cabinet rule
- [Standard CMU block dimensions](https://www.sizemarker.com/dimensions/standard-cmu-block-dimensions): nominal 8×8×16 in = actual 7 5/8 × 7 5/8 × 15 5/8 in (ASTM C90), 4–12 in widths, metric 190×190×390 mm
- [Standard glass thickness](https://www.sizemarker.com/dimensions/standard-glass-thickness): float glass 2–19 mm (EN 572-2/ASTM C1036), ~2.5 kg/m² per mm, jumbo 3210 × 6000 mm sheets
- [Standard garage door sizes](https://www.sizemarker.com/dimensions/standard-garage-door-sizes): single 8–10 × 7 ft, double 16–18 × 7 ft, 7 & 8 ft heights, RV/oversized, UK metric (ANSI/DASMA 102)
- [Showcase](https://www.sizemarker.com/showcase): real before/after annotation cases with results
- [Blog](https://www.sizemarker.com/blog): guides on spec diagrams, dimension labeling, returns reduction, and platform image rules

## Showcase cases
- [Feature Callouts That Sell a Sneaker's Details](https://www.sizemarker.com/showcase/feature-callout-labels-demo): A white mesh sneaker marked with three feature callouts — breathable mesh, cushioned sole, secure lacing — so buyers read build quality off the photo.
- [Everything a Sofa Buyer Needs, on One Listing Image](https://www.sizemarker.com/showcase/furniture-listing-annotation-demo): A velvet sofa as a complete listing image: 148×88×82 cm dimensions, feature callouts and a shipping badge — so buyers see every spec before they message you.
- [A Bar Stool Buyers Can Measure Before They Order](https://www.sizemarker.com/showcase/amazon-bar-stool-size-labels-reduce-returns): A wooden bar stool listing image marked with a 40 × 40 cm seat, 70 cm seat height and a 30 cm footrest — so buyers check counter fit before they order.
- [Bag Dimensions and Material, at a Glance](https://www.sizemarker.com/showcase/scenario-bag-size): A green leather handbag as a spec image: 30 × 22 × 14 cm, with full-grain leather and gold-tone hardware labels, so size and material are answered up front.
- [Package Box Dimensions, Marked at a Glance](https://www.sizemarker.com/showcase/dimension-white-box-demo): A plain white product box marked with 24 cm height, 12 cm width and 8 cm depth on the carton itself, so buyers read the exact package size before they order.
- [Amazon Lounge Chair Labels Cut Returns 60%](https://www.sizemarker.com/showcase/amazon-lounge-chair-size-labels-cut-returns): For this Amazon lounge chair listing, we used SizeMarker to add comprehensive size markers covering overall width, seat depth, back height, and footrest extension length, plus feature labels and a clean outline curve.

Key annotations added:
- Overall dimensions (width x depth x height) for space planning
- Seat depth and back height for comfort assessment
- Footrest extension length for reclining chairs
- Feature callouts: material, weight capacity, mechanism
- Contour outline separating product from background

Result: Conversion rate increased by 35% and returns dropped by 60%, primarily eliminating size-mismatch complaints. The combination of precise measurements and feature labels turned the image into a complete decision-making tool.
- [Amazon Wall Cabinet Size Labels Cut Refunds](https://www.sizemarker.com/showcase/amazon-wall-cabinet-size-labels-cut-refunds): For this solid wood wall cabinet listing on Amazon, we used SizeMarker to add precise width, height, and depth dimension lines directly on the product images.

Key annotations added:
- External dimensions (width x height x depth)
- Internal shelf spacing for storage planning
- Clean minimal annotation style matching the product aesthetic

Result: Shoppers could instantly verify if the cabinet fits their wall space, leading to more confident purchases. Size-related refunds dropped to near zero, and customer service inquiries about dimensions decreased dramatically.

## All blog posts (161)
- [ADA Clearance Dimensions: 8 Numbers US Buyers Check](https://www.sizemarker.com/blog/ada-clearance-dimensions-furniture): ADA clearance dimensions decide whether your table or desk passes a US review: 28-34 in tops, 27 in knee clearance height, 30x48 in clear floor space.
- [Agentic Commerce Product Feed: The Fields AI Agents Read](https://www.sizemarker.com/blog/agentic-commerce-product-feed): The agentic commerce product feed outlived in-chat checkout. Here are the required fields, the optional ones that decide fit, and what to fix first.
- [Product Image Aspect Ratio: Why Spec Diagrams Get Cropped](https://www.sizemarker.com/blog/product-image-aspect-ratio): Product image aspect ratio decides which part of your spec diagram survives the crop. The ratio math, the 10% safe margin, and the platform rules.
- [Mercado Libre Image Requirements: 800 px Is the Real Floor](https://www.sizemarker.com/blog/mercado-libre-image-requirements): Mercado Libre image requirements from the official seller docs: the 500-1,920 px window, the 800 px zoom threshold, per-category caps, and size-chart rules.
- [How to Photograph Building Materials: Shoot the Range](https://www.sizemarker.com/blog/how-to-photograph-building-materials): How to photograph building materials so the sample matches the pallet: shade variation classes, gloss units, calibre, and the six images every SKU needs.
- [IBC Tote vs Steel Drum: 49% More Liters Per Square Meter](https://www.sizemarker.com/blog/ibc-tote-vs-steel-drum): IBC tote vs steel drum, decided with real numbers: footprints, UN codes 31HA1 and 1A1, retest clocks, and how much liquid each holds per square meter of floor.
- [How to Calculate Return Rate: 5 Ways the Number Lies](https://www.sizemarker.com/blog/how-to-calculate-return-rate): How to calculate return rate without fooling yourself: the formula, the cohort trap, units vs value, and the reason breakdown that shows what to fix.
- [Dining Chair Seat Height: The 10-Inch Rule and Its Limits](https://www.sizemarker.com/blog/dining-chair-seat-height): Dining chair seat height is set by the table, not the chair: keep 10-12 in (25-30 cm) between the seat and the apron underside. Numbers, limits, exceptions.
- [H7/h6 Fit Tolerance: Clearance, Not Transition](https://www.sizemarker.com/blog/h7-h6-fit-tolerance): H7/h6 fit tolerance is a clearance fit, not a transition fit. What H, h, 6 and 7 mean, the ISO 286 numbers at 25 mm, and where the code belongs.
- [WhatsApp Business Catalog Image Size: 500 px Is Not Enough](https://www.sizemarker.com/blog/whatsapp-business-catalog-image-size): WhatsApp Business catalog image size, from Meta's real 500 px floor to the size buyers can actually read, plus a four-image template for every SKU.
- [How to Photograph Large Furniture in a Small Space](https://www.sizemarker.com/blog/photograph-large-furniture-small-space): How to photograph large furniture in a small space: the working-distance table, the focal length that keeps proportions honest, and a 7-step shoot order.
- [ISPM 15 Marking Requirements: 6 Stamps That Fail at Customs](https://www.sizemarker.com/blog/ispm-15-marking-requirements): ISPM 15 marking requirements in plain English: the four parts of a legal stamp, the six mistakes that get containers held, and which wood packaging is exempt.
- [Restocking Fee Rules by Marketplace: Who Can Charge What](https://www.sizemarker.com/blog/restocking-fee-rules-by-marketplace): Restocking fee rules by marketplace: most platforms now ban the fee and the EU never allowed it. The table, the law behind it, and what to do instead.
- [How to Photograph Reflective Metal Products: 6 Myths](https://www.sizemarker.com/blog/how-to-photograph-reflective-metal-products): How to photograph reflective metal products: a polariser barely touches bare metal. Six myths, the physics behind each, and a setup that keeps edges visible.
- [Gear Module vs Diametral Pitch: 25.4 Is Not a Fit](https://www.sizemarker.com/blog/gear-module-vs-diametral-pitch): Gear module vs diametral pitch: the 25.4 conversion lines up two quotes and never guarantees a fit. Four sourcing scenarios and the spec block buyers can check.
- [Product Photo Color Accuracy: 5 Places the Color Breaks](https://www.sizemarker.com/blog/product-photo-color-accuracy): Product photo color accuracy breaks in five handoffs between your studio and the buyer screen. Where each one fails, and which four you can fix.
- [Type X vs Type C Drywall: One Isn't in the Standard](https://www.sizemarker.com/blog/type-x-vs-type-c-drywall): Type X vs Type C drywall: one is defined in ASTM C1396 and the other is in no standard at all. What that means for export specs and EN 520 markets.
- [JIC vs ORFS vs BSP: The Fitting That Screws On and Leaks](https://www.sizemarker.com/blog/jic-vs-orfs-vs-bsp): JIC vs ORFS vs BSP fittings can share the same thread but seal in three different places. The 60-second ID routine and the dash-size trap table.
- [What Size TV Stand for a 65-Inch TV? The 4 Numbers](https://www.sizemarker.com/blog/what-size-tv-stand-for-65-inch-tv): What size TV stand for a 65-inch TV: the screen is 56.7 in wide, not 65 — plus foot span, usable top width and height, and the numbers to publish.
- [Rectified vs Non-Rectified Tile: 3 Numbers on the Spec Card](https://www.sizemarker.com/blog/rectified-vs-non-rectified-tile): Rectified vs non-rectified tile, decoded: the ISO 13006 work size on the box, the caliber trap, and the minimum grout joint each type can actually be laid at.
- [Office Chair Seat Height Standard: Four Types, Four Ranges](https://www.sizemarker.com/blog/office-chair-seat-height-standard): Office chair seat height standard by type: EN 1335-1 Table 2 values for Ax, A, B and C, why BIFMA sets none, and the 4 lines export buyers check.
- [Countertop Overhang: Three Standards, Three Limits](https://www.sizemarker.com/blog/countertop-overhang): Countertop overhang has three different published limits, and none is the 1.5 in everyone quotes. Front lip, cantilever, seating knee space and load, sourced.
- [FIBC Safety Factor: What 5:1 and 6:1 Actually Prove](https://www.sizemarker.com/blog/fibc-safety-factor): FIBC safety factor is a design type-test ratio, not a strength rating. What 5:1, 6:1 and the 1.8 stacking factor really prove, and what the label must carry.
- [Crib Mattress Fit Requirements: What Changed in 2026](https://www.sizemarker.com/blog/crib-mattress-fit-requirements): Crib mattress fit requirements changed twice in 2026: new corner-gap testing from 3 May and a new crib standard from 1 August. The four numbers to publish.
- [Product Dimensions Structured Data: Fields Nobody Fills In](https://www.sizemarker.com/blog/product-dimensions-structured-data): Product dimensions structured data in schema.org, Google Merchant Center and the ChatGPT feed: every field, copy-paste JSON-LD, and the rule that breaks it.
- [Custom-Made Goods Return Rights: The Exemption You Can Lose](https://www.sizemarker.com/blog/custom-made-goods-return-rights): Custom-made goods return rights: the EU and UK 14-day withdrawal carve-out, the two conditions it turns on, and the disclosure slip that costs 12 months.
- [Perspective Distortion in Product Photos: It's Not the Lens](https://www.sizemarker.com/blog/perspective-distortion-product-photos): Perspective distortion in product photos comes from camera distance, not focal length. The arithmetic, a distance table, and why no lens adds scale.
- [Digital Product Passport: What Ships When, 2026-2029](https://www.sizemarker.com/blog/digital-product-passport-timeline): Digital Product Passport timeline by product group: battery passport 18 Feb 2027, steel 2026, textiles 2027, furniture 2028, plus the 18-24 month rule.
- [WLL vs MBL: 6 Labels That Get Slings Rejected](https://www.sizemarker.com/blog/wll-vs-mbl-load-rating-labels): WLL vs MBL differ by a design factor of 2:1 to 7:1, so the wrong label overstates capacity by a multiple. Six rejected patterns and what to write instead.
- [mAh to Wh: The Number Your Airline Reads Is Not on the Box](https://www.sizemarker.com/blog/mah-to-wh-battery-shipping-limits): mAh to Wh conversion decides whether a battery flies. The 100 Wh and 160 Wh thresholds, PI 965/966/967, the 30% state-of-charge rule, and the voltage mistake.
- [NPT vs BSP Thread: They Screw Together, Then They Leak](https://www.sizemarker.com/blog/npt-vs-bsp-thread-identification): NPT vs BSP thread runs 14 TPI in both at 1/2 in, so it assembles and then leaks. TPI and major-diameter tables, plus an eight-field callout template.
- [EI30 vs FD30: Four Markets, Four Fire Door Ratings](https://www.sizemarker.com/blog/ei30-vs-fd30-fire-door-ratings): EI30 vs FD30 is not the same rating: EI covers integrity and insulation, FD covers integrity only. Four export markets, four systems, one decision tree.
- [Aluminium Extrusion Slot Width: Why 2020 Is Not a Spec](https://www.sizemarker.com/blog/aluminium-extrusion-slot-width): Aluminium extrusion slot width is the number 2020 never tells you. Five ordering mistakes, the kg/m test, and the eight-field spec block that ends them.
- [Mesh Count vs Micron: Same 100 Mesh, 51 Microns Apart](https://www.sizemarker.com/blog/mesh-count-vs-micron-opening): Mesh count vs micron: mesh is a weave density, not an aperture. Two 100-mesh cloths can differ by 51 microns and both be honestly labelled.
- [Drawer Slide Clearance: Lock 4 Numbers Before You Cut](https://www.sizemarker.com/blog/drawer-slide-clearance-sizing): Drawer slide clearance is 12.7 mm per side for side-mount and a material-dependent deduction for undermount. Here is the order to lock the numbers in.
- [Cabinet Hinge Boring Dimensions: Five Numbers, Not One](https://www.sizemarker.com/blog/cabinet-hinge-boring-dimensions): Cabinet hinge boring dimensions are five numbers, not one: 35 mm cup, 13 mm depth, drilling distance, fixing pattern and cup position along the door.
- [STC vs Rw: Why Your 45 dB Window Gets Graded at 39](https://www.sizemarker.com/blog/stc-vs-rw-sound-rating): STC vs Rw sound ratings differ by 1-2 points, but Rw+Ctr can cut 6 dB. What each index measures, which market grades on which, and how to write the acoustic line.
- [Full Overlay vs Half Overlay: Two Answers, 9.5 mm Apart](https://www.sizemarker.com/blog/full-overlay-vs-half-overlay-cabinet-doors): Full overlay vs half overlay means different geometry on face-frame and frameless cabinets: the door-size math, the reveal, and what to ask before cutting.
- [Shore A vs Shore D: Why 'Shore 70' Is Not a Spec](https://www.sizemarker.com/blog/shore-a-vs-shore-d-hardness): Shore A vs Shore D hardness are two instruments, not two precisions: why 'Shore 70' is not a spec, why no conversion exists, and how to write a callout that holds.
- [Stair Riser and Tread Dimensions: The 3/8-Inch Rule](https://www.sizemarker.com/blog/stair-riser-and-tread-dimensions): Stair riser and tread dimensions are capped by two numbers per market, and failed by a third: no riser may differ from another by more than 3/8 inch. Limits for four markets.
- [Ra vs Rz: Same Number, Two Completely Different Surfaces](https://www.sizemarker.com/blog/ra-vs-rz-surface-roughness): Ra vs Rz measure different things — two parts can share an Ra and only one will seal. What each parameter sees, why no conversion factor works, and what ISO 21920 changed.
- [What Size Dining Table Seats 8? Run the Clearance Math](https://www.sizemarker.com/blog/what-size-dining-table-seats-8): What size dining table seats 8 takes three numbers, not one: edge length per person, table width, and the clearance behind the chairs. With the full sizing table.
- [Cover Width vs Overall Width: 1,000 mm That Covers 840](https://www.sizemarker.com/blog/cover-width-vs-overall-width-panels): Cover width vs overall width decides panel count: a 1,000 mm sheet covers 840 mm. The profile table, the panel-count formula and where the 25% shortfall comes from.
- [How to Measure VESA Mount Size: 3 Numbers, Not 1](https://www.sizemarker.com/blog/how-to-measure-vesa-mount-size): How to measure VESA mount size: horizontal spacing, vertical spacing and thread. The full MIS-B to MIS-F table, plus the screw length that cracks panels.
- [IP68 vs IP66: Why the Higher Number Can Fail a Hose Test](https://www.sizemarker.com/blog/ip68-vs-ip66-water-jet-test): IP68 vs IP66 is not a ranking: in IEC 60529 the water tests stop being cumulative after 6. What each digit certifies, and what belongs on your spec sheet.
- [Made-to-Measure Orders: Lock These 6 Things Before Quoting](https://www.sizemarker.com/blog/made-to-measure-order-process-export): The made-to-measure order process: who owns a wrong dimension, opening vs product size, the change freeze point, and when custom goods lose the 14-day return right.
- [Tolerance Stack-Up Explained: 5 Good Parts, 1 Bad Fit](https://www.sizemarker.com/blog/tolerance-stack-up-explained-export): Tolerance stack-up explained: 5 parts at ±0.5 mm give ±2.5 mm worst case but ±1.118 mm RSS. When each method is right, and why ISO 2768-mK is now half obsolete.
- [How to Photograph a Product for Measurement: 4 Setups](https://www.sizemarker.com/blog/how-to-photograph-a-product-for-measurement): How to photograph a product for measurement: lens distortion and perspective error are different problems. At 1 m, 100 mm of depth costs 11% in size. Four setups ranked.
- [Maximum Shelf Span Without Support: Where Shelves Sag](https://www.sizemarker.com/blog/maximum-shelf-span-without-support): Maximum shelf span without support by material and thickness: 19 mm particleboard manages 700-760 mm at L/180. Span tables, creep, and four ways to buy back span.
- [Rebar Size Designations: 6 Myths That Ship the Wrong Bar](https://www.sizemarker.com/blog/rebar-size-designations-export): Rebar size designations decoded: #4 is 12.7 mm not 4 mm, #13 is the same bar, and Grade 60, B500B and HRB400 are three different yield strengths.
- [What Bearing Numbers Mean: 6205 Is Three Dimensions](https://www.sizemarker.com/blog/what-bearing-numbers-mean-6205): What bearing numbers mean: 6205 decodes to a 25 mm bore, 52 mm OD and 15 mm width under ISO 15. Bore-code table, dimension series, suffixes and what to quote.
- [Wardrobe Internal Dimensions: The 6 Numbers Buyers Ask For](https://www.sizemarker.com/blog/wardrobe-internal-dimensions-buyers-ask): Wardrobe internal dimensions decide whether coats fit: clear depth, long-hang and short-hang heights, rail clearance, shelf depth and load — the numbers listings omit.
- [Door Handing: How to Determine It Before the Container Ships](https://www.sizemarker.com/blog/how-to-determine-door-handing-export): How to determine door handing when ANSI, US residential and DIN conventions disagree: three reference sides, five order scenarios, and the diagram that ends disputes.
- [Sheet Metal Gauge to mm: 16 Gauge Is Four Thicknesses](https://www.sizemarker.com/blog/sheet-metal-gauge-to-mm-export): Sheet metal gauge to mm depends on the metal: 16 gauge is 1.52 mm in steel, 1.61 mm galvanized, 1.59 mm stainless, 1.29 mm aluminium. Four tables compared.
- [Assembly Instructions for Flat Pack Furniture: 4 Formats](https://www.sizemarker.com/blog/assembly-instructions-flat-pack-furniture): Assembly instructions for flat pack furniture decide your "missing parts" return rate. Four formats compared against IEC 82079-1, the GPSR language rule and cost.
- [Rough Opening vs Unit Size: The 3 Numbers on Every Order](https://www.sizemarker.com/blog/rough-opening-vs-unit-size-windows-doors): Rough opening vs unit size is why correct windows get rejected on site. The three fenestration numbers, allowances by market, and the egress number nobody prints.
- [Wood Moisture Content for Export Furniture: 6 Answers](https://www.sizemarker.com/blog/wood-moisture-content-export-furniture): Wood moisture content for export furniture decides whether a table lands flat or cracked. Six questions answered with real EMC numbers by destination market.
- [Gross vs Net Capacity: Why a 500L Fridge Holds 420L](https://www.sizemarker.com/blog/gross-vs-net-capacity-labeling): Gross vs net capacity can differ by up to 32%. What each number means, the gap by category, the unit traps, and how to label capacity buyers can verify.
- [Oversized Item Return Shipping Cost: The Real Math](https://www.sizemarker.com/blog/oversized-item-return-shipping-cost): Oversized item return shipping cost runs $100-700 in freight alone. Here is the full cost stack, the size thresholds, and which returns you can prevent.
- [Plug Type and Voltage by Export Market: What to Label](https://www.sizemarker.com/blog/plug-type-voltage-by-export-market): Plug type and voltage by export market, in one table: 23 markets with voltage, frequency, plug letter and the safety mark each one legally requires.
- [R-Value vs U-Value vs Lambda: The Numbers Buyers Misread](https://www.sizemarker.com/blog/r-value-vs-u-value-vs-lambda): R-value vs U-value vs lambda explained for exporters: what each number measures, the metric-imperial trap, and how to quote insulation specs buyers trust.
- [Counter Height vs Bar Height Stools: 5 Costly Mistakes](https://www.sizemarker.com/blog/counter-height-vs-bar-height-stools): Counter height vs bar height stools: the 5 sizing mistakes that drive returns, with seat-height, clearance and spacing numbers in inches and millimetres.
- [EU Packaging Regulation for Exporters: What Changes in 2026](https://www.sizemarker.com/blog/eu-packaging-regulation-for-exporters): The EU packaging regulation for exporters applies 12 August 2026. What changes then, what waits until 2030, and the empty-space number most sources get wrong.
- [GPSR Labelling Requirements: 6 Myths Exporters Still Believe](https://www.sizemarker.com/blog/gpsr-labelling-requirements): GPSR labelling requirements have applied since 13 December 2024. Six myths still get non-EU sellers listings pulled, and the Article text that settles each.
- [Garment Measurement Points: 4 Situations, 4 Different Charts](https://www.sizemarker.com/blog/garment-measurement-points-spec-sheet): Garment measurement points decide every fit dispute. Four export situations, four different documents, plus the tolerance rule that settles rejections.
- [Appliance Cutout Dimensions Aren’t the Appliance’s Size](https://www.sizemarker.com/blog/appliance-cutout-dimensions-export): Appliance cutout dimensions are the opening an appliance needs, not its own size. Eight questions export cabinet catalogs must answer before shipping.
- [How to Communicate Product Dimensions to Buyers](https://www.sizemarker.com/blog/communicate-product-dimensions-to-buyers): How to communicate product dimensions to buyers: four methods — email spec, technical drawing, plain photo, annotated photo — compared on comprehension and error risk.
- [Plywood Dimensions and Grades for Export Buyers](https://www.sizemarker.com/blog/plywood-dimensions-grades-export): Plywood dimensions and grades confuse export buyers: nominal vs actual thickness, sheet sizes, face and back grades, glue class, and formaldehyde compliance, explained.
- [Export Pallet Dimensions: Standard Sizes & Container Fit](https://www.sizemarker.com/blog/export-pallet-dimensions-container-fit): Export pallet dimensions set container fit and freight cost — the six ISO 6780 footprints, which pallet to load per market, and how many fit a 20ft or 40ft container.
- [Sofa Dimensions for Export: 5 Mistakes That Lose Orders](https://www.sizemarker.com/blog/sofa-dimensions-for-export): Sofa dimensions for export decide whether it fits the room and clears the doorway. The 5 mistakes that lose orders — including the number almost no listing shows.
- [Flange Dimensions for Export: The Numbers Buyers Ask For](https://www.sizemarker.com/blog/flange-dimensions-for-export): Flange dimensions for export decide fit: the same OD can hide a different bolt circle. The seven numbers buyers ask for, and the mistakes that ship the wrong part.
- [Dimension Drawing for a Product Catalog: What Buyers Scan](https://www.sizemarker.com/blog/dimension-drawing-for-product-catalog): A dimension drawing for a product catalog answers the buyer's first question — how big is this and will it fit — before they ever email. Here's what goes on it, field by field.
- [Caster Wheel Dimensions: Why a 4-Inch Caster Isn't 4 Inches](https://www.sizemarker.com/blog/caster-wheel-dimensions-load-ratings): Caster wheel dimensions buyers get wrong: overall height is not wheel diameter, top plates are not standardised, and load ratings do not compare across brands.
- [LED Lighting Specifications: IP67 Is Not Better Than IP65](https://www.sizemarker.com/blog/led-lighting-specifications-export): LED lighting specifications for export buyers: why IP67 is not an upgrade on IP65, what a 3000 K label really allows, and which test report proves what.
- [Powder Coating Specifications by Environment, Not Hours](https://www.sizemarker.com/blog/powder-coating-specifications-corrosion): Powder coating specifications that survive the buyer's climate: corrosivity categories, real DFT windows, and why salt-spray hours predict nothing.
- [Sanitaryware Specifications for Export: 5 Costly Myths](https://www.sizemarker.com/blog/sanitaryware-specifications-export): Sanitaryware specifications for export fail on four dimensions: rough-in, trap type, tap hole centres and clearances. Five myths that cost orders.
- [AWG vs mm² Cable Specs: The 20% Gap Buyers Miss](https://www.sizemarker.com/blog/awg-vs-mm2-cable-specifications): AWG vs mm² cable specifications are not a unit conversion but two systems. Why 14 AWG and 2.5 mm² differ by 20%, and what belongs on the spec sheet.
- [Upholstery Fabric Specifications: 4 Numbers Buyers Misread](https://www.sizemarker.com/blog/upholstery-fabric-specifications): Upholstery fabric specifications go wrong on four numbers — weight, width, abrasion and repeat. What each actually means, and what must sit next to it.
- [Metric vs Imperial Threads: Send Buyers the Right Spec](https://www.sizemarker.com/blog/metric-vs-imperial-fastener-threads): Metric vs imperial fastener threads look alike but never interchange. How to read M8x1.25 vs 1/4-20 UNC and send overseas buyers the exact thread spec — scenario by scenario.
- [Stone Slab Dimensions: How Big Is a Slab, Really?](https://www.sizemarker.com/blog/stone-slab-dimensions-thickness): Stone slab dimensions aren't standardized the way buyers assume — thickness is (2 cm / 3 cm), length and width aren't. What overseas buyers ask about granite, quartz and porcelain slab size and usable yield.
- [Export Carton Shipping Marks: What Goes on the Box](https://www.sizemarker.com/blog/export-carton-shipping-marks): Export carton shipping marks aren't one ISO standard — the contract and L/C set them, plus ISO 780 handling symbols and customs origin law. What goes on a master carton, field by field.
- [Bed Frame Size vs Mattress Size: 5 Sizing Mistakes](https://www.sizemarker.com/blog/bed-mattress-sizing-mistakes): Bed frame size vs mattress size mix-ups, plus Queen and King meaning different cm in the US, UK, EU and AU, drive size returns. 5 myths busted, sourced charts.
- [Steel Profile Dimensions: The Export Buyer's Reference](https://www.sizemarker.com/blog/steel-profile-dimensions-export): Steel profile dimensions buyers ask for: angle, channel, SHS/RHS and round tube sizes, wall thickness and weight per metre, and their naming traps.
- [Tile PEI Rating vs Water Absorption: Read the Spec Card](https://www.sizemarker.com/blog/tile-pei-rating-vs-water-absorption): Tile PEI rating vs water absorption vs slip (DCOF/R-rating): three specs export tile buyers confuse, plus exactly what to put on your tile spec card.
- [Standard Cabinet Dimensions Wholesale Buyers Ask For](https://www.sizemarker.com/blog/standard-cabinet-dimensions-wholesale-buyers): The standard cabinet dimensions wholesale buyers ask for — base, wall and tall sizes, depths, toe kick, and framed vs frameless, from real specs.
- [How to Label Glass and Mirror Dimensions for Export](https://www.sizemarker.com/blog/how-to-label-glass-and-mirror-dimensions-for-export): How to label glass and mirror dimensions for export: real thickness ranges, tolerances, and spec fields buyers check — with ASTM C1036 and EN 572 numbers.
- [Pipe and Fitting Dimensions Buyers Ask For: NPS, DN, OD](https://www.sizemarker.com/blog/pipe-and-fitting-dimensions-nps-dn-schedule-od): Pipe and fitting dimensions confuse buyers when NPS, DN, schedule and OD get mixed up. What each one means and what to put on your spec diagram.
- [How to Label Metal Product Specifications: 5 Costly Myths](https://www.sizemarker.com/blog/how-to-label-metal-product-specifications): How to label metal product specifications so buyers do not reject good steel: the 5 myths on gauge, grade, finish, and tolerance that lose export orders.
- [Spec Sheet vs Technical Drawing: What Buyers Actually Need](https://www.sizemarker.com/blog/spec-sheet-vs-technical-drawing): Spec sheet vs technical drawing: one helps a buyer order, the other helps a factory build. Sending the wrong one stalls quotes — here is how to tell them apart.
- [Building Material Coverage per Box: Tiles, Flooring & Sheets](https://www.sizemarker.com/blog/building-material-coverage-per-box): Building material coverage per box decides how many boxes your buyer orders — here is the tile, flooring, and sheet math to label it right on every spec sheet.
- [Goods Not as Described: What Actually Counts as a Spec](https://www.sizemarker.com/blog/goods-not-as-described-claims): Goods not as described is decided by the description in your contract, not your photo. What counts as a spec, the CISG rules, claim windows and who pays.
- [Pre-Shipment Inspection Dimension Checks That Fail Orders](https://www.sizemarker.com/blog/pre-shipment-inspection-dimension-checks): A pre-shipment inspection dimension check fails good products over undocumented tolerances. Five scenarios, the ISO 2859-1:2026 update, and the fix.
- [300 DPI vs 72 DPI: Why Product Images Only Need Pixels](https://www.sizemarker.com/blog/300-dpi-vs-72-dpi-product-images): 300 DPI vs 72 DPI is a fight over a file tag, not image quality. Here is the pixel math that settles print catalogs, marketplace specs and spec diagrams.
- [Installation Clearance Dimensions: 5 Myths That Cost Sales](https://www.sizemarker.com/blog/installation-clearance-dimensions): Installation clearance dimensions decide whether your product fits — not L×W×H. 5 myths busted with NKBA, OSHA and ADA figures, plus a labeling checklist.
- [Home Depot Product Image Requirements: 2026 Vendor Traps](https://www.sizemarker.com/blog/home-depot-product-image-requirements): Home Depot product image requirements in 2026: 1,000 x 1,000 px minimum, white #FFFFFF background, .jpg only — plus the category traps that reject SKUs.
- [Gross Weight vs Net Weight vs Volumetric Weight Explained](https://www.sizemarker.com/blog/gross-net-volumetric-weight-export): Gross weight vs net weight vs volumetric weight: what each means on an export spec sheet, how chargeable weight gets billed, and what mislabeling costs.
- [Size Return Rate by Category: Which Products Ship Back](https://www.sizemarker.com/blog/size-return-rate-by-category): Size return rate by category: apparel, footwear, furniture and more — the real ranges, why size drives most returns, and the labeling fixes that cut each.
- [How to Respond to an Alibaba RFQ and Win the Quote](https://www.sizemarker.com/blog/alibaba-rfq-spec-sheet): How to respond to an Alibaba RFQ so your quote wins: what goes in the spec sheet, how clear dimensions shorten back-and-forth, and a scenario playbook.
- [Faire Image Requirements: The 2026 Spec Sheet for Brands](https://www.sizemarker.com/blog/faire-image-requirements): Faire image requirements for 2026: exact pixel sizes, aspect ratios, and background rules for product, feature, and cover images that pass review.
- [Show Finish and Material Options: 5 Myths Costing Orders](https://www.sizemarker.com/blog/show-finish-and-material-options-in-product-images): Show finish and material options the right way: 5 myths about variant photos that cost suppliers orders, and how to label each finish so buyers pick right.
- [How to Make a Wholesale Line Sheet That Gets Reorders](https://www.sizemarker.com/blog/how-to-make-a-wholesale-line-sheet): A wholesale line sheet is the catalog page retail buyers order from. Learn what to include (prices, MOQ, case pack, lead time) so buyers actually reorder.
- [Temu Product Image Requirements (2026 Spec Sheet)](https://www.sizemarker.com/blog/temu-product-image-requirements): Temu product image requirements for 2026: pixel sizes, the pure-white main image rule, file limits, and the exact reasons Temu images get rejected.
- [How to Label Building Material Dimensions (By Material)](https://www.sizemarker.com/blog/how-to-label-building-material-dimensions): How to label building material dimensions on product images: tile, plywood, lumber, brick and pipe — nominal vs actual size, standards, and tolerances.
- [Reuse Product Images Across Platforms: Spec Table](https://www.sizemarker.com/blog/reuse-product-images-across-platforms): Reuse product images across platforms with one master spec table — Amazon, Alibaba, Wayfair, and TikTok Shop pixel, ratio, and background rules compared.
- [Will Furniture Fit Through the Door? A Supplier's Fix](https://www.sizemarker.com/blog/will-furniture-fit-through-door): Will furniture fit through the door? Only if you publish delivery-access dimensions. Map every access path and label the product image before buyers order.
- [Nominal vs Actual Dimensions: Why a 2x4 Isn't 2 Inches](https://www.sizemarker.com/blog/nominal-vs-actual-dimensions): Nominal vs actual dimensions: why a 2x4 is really 1.5x3.5 in, how nominal sizing works across lumber, plywood, pipe and brick, and why listings need real sizes.
- [Global Sources Image Requirements: Specs That Win Inquiries](https://www.sizemarker.com/blog/global-sources-image-requirements): Global Sources image requirements, decoded: the main-image, background, format, and file-size rules suppliers must hit to win inquiries.
- [How to Label Weight Capacity on Product Images Buyers Trust](https://www.sizemarker.com/blog/how-to-label-weight-capacity-product-images): How to label weight capacity on product images so B2B buyers trust the load rating: static vs dynamic load, safety factors, and where to place the number.
- [TikTok Shop Product Image Requirements (2026 Specs)](https://www.sizemarker.com/blog/tiktok-shop-product-image-requirements): TikTok Shop product image requirements for 2026: minimum size, 1:1 ratio, clean background rules, file limits, and why the still image still decides the sale.
- [Product Photo Callouts: How to Label Features Buyers Read](https://www.sizemarker.com/blog/product-photo-callouts): Product photo callouts done right: how many to use, how long, and the 6 rules that make feature labels convert instead of clutter the image.
- [Wayfair Image Requirements: Specs Suppliers Must Hit](https://www.sizemarker.com/blog/wayfair-image-requirements): Wayfair image requirements for suppliers: exact resolution, white hero background, image count, and the dimension rule that decides your return rate.
- [How to Show Product Size in a Photo Without a Model](https://www.sizemarker.com/blog/how-to-show-product-size-in-a-photo): How to show product size in a photo without a model: which scale tricks actually work, which mislead buyers, and the one that removes the guesswork.
- [Container Loading Quantity: How Many Units Actually Fit](https://www.sizemarker.com/blog/container-loading-quantity): Container loading quantity explained: calculate how many units fit a 20ft, 40ft, or 40HC container from carton size — and why the real number runs lower.
- [B2B Marketplace Image Requirements: The Specs That Matter](https://www.sizemarker.com/blog/b2b-marketplace-image-requirements): B2B marketplace image requirements compared: Alibaba, Made-in-China, and Global Sources specs, file limits, and the one image rule that wins inquiries.
- [Rug Size Returns: The Dimensions That Stop 'Too Small'](https://www.sizemarker.com/blog/rug-size-returns): Rug size returns almost always trace to one mistake: a rug too small for the room. Here are the standard sizes and the dimensions to show buyers to prevent it.
- [Folded and Assembled Dimensions: Show Both or Eat the Return](https://www.sizemarker.com/blog/folded-and-assembled-dimensions): Folded and assembled dimensions are the two sizes buyers confuse most: show only one and it does not fit becomes a return. Here is how to label both states.
- [Product Dimension Tolerance: How to Label ± Specs Buyers Trust](https://www.sizemarker.com/blog/product-dimension-tolerance): Product dimension tolerance decides whether an overseas buyer trusts your spec or files a mismatch claim. Here is how to set, state, and label the ± band by material.
- [Product Catalog for the Canton Fair: A Prep Playbook](https://www.sizemarker.com/blog/canton-fair-product-catalog-prep): Build a product catalog for the Canton Fair that wins follow-up orders: 2026 phase dates, what buyers keep, and a spec-diagram prep checklist.
- [Made-in-China.com Product Images That Win Inquiries](https://www.sizemarker.com/blog/made-in-china-product-images): How to prepare Made-in-China.com product images that win buyer inquiries — image standards, the spec diagram buyers look for, and mistakes to avoid.
- [Shoe Size Conversion Chart That Actually Cuts Returns](https://www.sizemarker.com/blog/shoe-size-conversion-chart): A shoe size conversion chart for US, UK, EU and CM — plus why length-only charts miss the width problem that drives most footwear returns.
- [Product Dimensions in Cm or Inches? The Answer Is Both](https://www.sizemarker.com/blog/product-dimensions-cm-or-inches): Product dimensions in cm or inches? US labels legally need both, the EU requires metric first. The dual-unit format that works everywhere, plus rounding rules.
- [How to Write an Export Quotation That Beats a Cheaper One](https://www.sizemarker.com/blog/how-to-write-export-quotation): How to write an export quotation that wins orders: four myths about price and specs debunked, plus a copy-paste spec block and pre-send checklist.
- [How to Photograph Furniture: A 7-Step Setup That Sells](https://www.sizemarker.com/blog/how-to-photograph-furniture): How to photograph furniture without distortion: a 7-step setup covering lens choice, f/8 aperture, soft key light, angles, and the shots catalogs need.
- [Master Carton Dimensions: The Packing Specs Buyers Ask For](https://www.sizemarker.com/blog/master-carton-dimensions-export): Master carton dimensions decide freight quotes and container plans. A copy-paste packing spec template with CBM math, load counts, and ISPM-15 basics.
- [Alibaba.com Image Requirements: Specs, Limits, and Fixes](https://www.sizemarker.com/blog/alibaba-image-requirements): Alibaba.com image requirements in one table: 350×350px minimum, 1:1–1:1.3 ratio, 3MB cap, 6 photo slots — plus fixes for uploads that keep failing.
- [Dimension Drawing for a Product Catalog: What Buyers Need](https://www.sizemarker.com/blog/dimension-drawing-vs-spec-diagram-vs-cad): A dimension drawing for a product catalog, a spec diagram, and a CAD file solve different problems, and most buyers only need one before ordering.
- [Can You Use AI-Generated Images to Show Product Size?](https://www.sizemarker.com/blog/ai-generated-images-cant-measure-dimensions): Can I use AI-generated images on Amazon or eBay? Usually yes — but none of them can accurately show a product's real dimensions.
- [How to Make a Product Spec Sheet Buyers Actually Read](https://www.sizemarker.com/blog/product-spec-sheet-buyers-read): How to make a product spec sheet buyers actually read: the field priority order across furniture, industrial, and building-material sourcing.
- [Building-Material Size Labeling: Tiles, Panels & Profiles](https://www.sizemarker.com/blog/building-material-size-labeling-guide): Building-material size labeling needs a fixed template: nominal vs actual size, tolerance, and joint spacing for every tile, panel, and profile SKU.
- [Catalog Images That Convert for Building-Material Exporters](https://www.sizemarker.com/blog/catalog-images-building-material-export-orders): Catalog images that convert start with one spec layout per SKU. See how a building-material exporter cut quote turnaround and back-and-forth emails in half.
- [How Clear Spec Images Cut Returns: Building-Material Exports](https://www.sizemarker.com/blog/clear-spec-images-cut-building-material-disputes): How clear spec images cut returns and export disputes: the freight-cost math and a pre-shipment spec-confirmation workflow that prevents wrong-size containers.
- [How to Look Professional to Overseas Buyers: 6 Image Fixes](https://www.sizemarker.com/blog/professional-product-images-overseas-buyers-trust): How to look professional to overseas buyers starts with your images: six common mistakes quietly cost new suppliers trust, inquiries, and orders.
- [How to Build a Spec Diagram for Industrial Products](https://www.sizemarker.com/blog/industrial-product-spec-diagram-dimensions): A spec diagram for industrial products states the exact dimensions, tolerances, and hole spacing buyers need before they order.
- [How to Reduce Pre-Sale Questions About Size: Label the Image](https://www.sizemarker.com/blog/reduce-pre-sale-size-questions): How to reduce pre-sale questions about size: audit repeat inquiries, then label the exact dimensions buyers keep asking for right on the image.
- [How Spec Sheets Win B2B Orders, and Close Inquiries Faster](https://www.sizemarker.com/blog/spec-sheets-win-b2b-orders): How spec sheets win B2B orders: a clear dimension diagram qualifies buyers, collapses the email chain, and beats a cheaper quote, stage by stage.
- [Furniture Return Rate: Why Size Drives It (and the Fix)](https://www.sizemarker.com/blog/furniture-return-rate): The furniture return rate runs 15-20%, but size drives the costly ones. See what a single return really costs and the one image that prevents it.
- [How to Show Furniture Dimensions in Photos](https://www.sizemarker.com/blog/furniture-dimensions-in-photos): How to show furniture dimensions in photos so overseas buyers see size at a glance: what to label per furniture type, dual units, and a pre-publish checklist.
- [Jewelry Size Guide for Rings, Necklaces, Bracelets](https://www.sizemarker.com/blog/jewelry-size-guide): Use this jewelry size guide to show ring, necklace, bracelet, and earring dimensions clearly and reduce avoidable size returns.
- [Batch Product Photography: Shoot 50+ SKUs in One Day](https://www.sizemarker.com/blog/batch-product-photography-50-skus): A practical batch product photography workflow for shooting 50+ SKUs with consistent lighting, filenames, quality control, and exports.
- [A/B Testing Product Images That Convert](https://www.sizemarker.com/blog/ab-testing-product-images): Learn how to run product image A/B testing on Amazon, Shopify, and marketplaces without misreading noisy conversion data.
- [Google Shopping Image Disapproval Fixes](https://www.sizemarker.com/blog/google-shopping-image-disapproval-fixes): Fix Google Shopping image disapprovals caused by small files, overlays, variant mismatches, crawler errors, and stale URLs.
- [Etsy Listing Photo Safe Zone Guide](https://www.sizemarker.com/blog/etsy-listing-photo-safe-zone): Use this Etsy listing photo safe zone workflow to prevent cropped thumbnails, blurry search cards, and weak product galleries.
- [eBay Fashion Size Standardization 2026](https://www.sizemarker.com/blog/ebay-fashion-size-standardization-2026): eBay fashion size standardization starts in June 2026. Use this seller audit workflow to fix size fields before July enforcement.
- [International Size Conversion: US, UK, EU, JP, CN Charts for 2026](https://www.sizemarker.com/blog/international-size-conversion-charts): Cross-border clothing and shoe size charts for US, UK, EU, JP, and CN — plus the math, the common mistakes, and how to display multiple regions on one listing.
- [White Background Product Photography: The Complete DIY Setup Guide](https://www.sizemarker.com/blog/white-background-product-photography-diy-setup): Build a pure white RGB(255,255,255) product photo setup for under $200. Step-by-step SOP with the gear list, two-light geometry, camera settings, and post-processing.
- [Anatomy of a High-Converting Amazon Listing: Image Stack Breakdown](https://www.sizemarker.com/blog/amazon-listing-image-stack-breakdown): Each of the 7 Amazon image slots has a job. Here is the slot-by-slot anti-pattern gallery, with conversion data showing why the order matters more than seller polish.
- [Walmart Marketplace Product Image Requirements: A Seller's Guide](https://www.sizemarker.com/blog/walmart-product-image-requirements): Walmart vs Amazon vs eBay vs Shopify image specs in one comparison table, plus Walmart-specific rules: 1:1 aspect, RGB(255,255,255) hero, Polaris content scoring, and rejection fixes.
- [How to Calculate Your True Product Photography ROI](https://www.sizemarker.com/blog/product-photography-roi-calculation): A practical decision guide for e-commerce product photography spend: calculate ROI by SKU revenue tier, factor in conversion lift and return rate, and avoid common payback miscalculations.
- [The Buyer's Perspective: What Online Shoppers Wish Product Listings Showed](https://www.sizemarker.com/blog/buyer-perspective-product-listing-needs): A 2026 data report on what online shoppers wish e-commerce listings showed before they bought — color accuracy, scale, material, contents, and use context, ranked by buyer feedback.
- [Lifestyle Product Photography: 6 Scenarios That Sell](https://www.sizemarker.com/blog/lifestyle-product-photography-that-sells): Six practical lifestyle photography scenarios for e-commerce (desktop, in-home, on-model, outdoor, studio-hybrid, UGC) with budgets, shot lists, and decision matrix.
- [Amazon Infographic Images That Convert: 12 Anti-Patterns to Avoid](https://www.sizemarker.com/blog/amazon-infographic-images-that-convert): Twelve common Amazon infographic mistakes that hurt conversion, plus the 5 infographic types that actually work. Mobile-first rules, checklist, and FAQ for 2026.
- [Shopify Product Image Best Practices: Sizes, Formats, and Speed](https://www.sizemarker.com/blog/shopify-product-image-best-practices): Complete 2026 guide to Shopify product image sizes (2048x2048), formats (JPEG/PNG/WebP), file size targets, theme compatibility, alt text SEO, and variant setup.
- [15 Free Tools Every E-commerce Seller Needs in 2026](https://www.sizemarker.com/blog/free-ecommerce-seller-tools-2026): 15 tools for e-commerce sellers organized by workflow: design, background removal, editing, keywords, pricing, and operations. Each rated with free vs paid scope and best-fit stage.
- [The Hidden Cost of Product Returns: A Full Breakdown](https://www.sizemarker.com/blog/hidden-cost-of-ecommerce-returns): A single return costs -30, not just shipping. Full cost breakdown by component, ROI comparison of reducing returns vs. pushing more sales, and five actions to lower return rates.
- [Product Dimension Annotations: How Top Sellers Show Size](https://www.sizemarker.com/blog/product-dimension-annotation-guide): Six common dimension annotation mistakes on product images, with fixes. Covers line style, contrast, consistency, reference objects, and a complete annotation workflow.
- [Selling on Multiple Platforms: A Practical Multi-Channel Guide](https://www.sizemarker.com/blog/multi-platform-selling-practical-guide): Full comparison of Amazon, Shopify, eBay, Etsy and Walmart across image specs, fees, fulfillment, and audience. Includes a sustainable workflow for running multiple channels.
- [Why Most Online Fashion Returns Are Size-Related (And How to Fix It)](https://www.sizemarker.com/blog/fashion-returns-size-related-data): Data-driven analysis of fashion returns: 52-58% are fit issues. Includes real cost breakdowns, 5 proven fixes, and a case study showing 35% to 22% return rate reduction.
- [How to Create a Size Chart That Actually Reduces Returns](https://www.sizemarker.com/blog/size-chart-that-reduces-returns): A ready-to-use size chart template with measurement instructions, category examples for apparel/footwear/bags/furniture, and placement tips to reduce fit-related returns.
- [How to Shoot Professional Product Photos with Just a Smartphone](https://www.sizemarker.com/blog/smartphone-product-photography-guide): A complete guide to shooting listing-ready product photos using only a smartphone and under $30 in equipment. Covers phone settings, DIY lightbox setup, lighting techniques, shooting angles, mobile editing apps, and category-specific tips for clothing, jewelry, electronics, food, and furniture.
- [7 Hero Image Mistakes That Kill Your Amazon Click-Through Rate](https://www.sizemarker.com/blog/hero-image-mistakes-kill-amazon-ctr): The 7 most common Amazon hero image mistakes that destroy your click-through rate, with specific fixes for each: product fill, lighting, angle, color accuracy, white background, text violations, and resolution.
- [Amazon Product Image Requirements in 2026: The Complete Seller's Checklist](https://www.sizemarker.com/blog/amazon-product-image-requirements-complete-guide): Complete guide to Amazon product image specifications including main image white background rules, secondary image best practices, size chart guidelines, common rejection reasons, and a pre-upload checklist.

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