Size & Fit
Countertop Overhang: Three Standards, Three Limits
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.
أفكار وتجارب
نصائح وأدلة لتوضيح أبعاد منتجاتك بالصور
B2B & Suppliers
FIBC Safety Factor: What 5:1 and 6:1 Actually Prove
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.
Compliance
Crib Mattress Fit Requirements: What Changed in 2026
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.
Conversion
Product Dimensions Structured Data: Fields Nobody Fills In
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.
Returns
Custom-Made Goods Return Rights: The Exemption You Can Lose
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.
Photography
Perspective Distortion in Product Photos: It's Not the Lens
Perspective distortion in product photos comes from camera distance, not focal length. The arithmetic, a distance table, and why no lens adds scale.
Compliance
Digital Product Passport: What Ships When, 2026-2029
Digital Product Passport timeline by product group: battery passport 18 Feb 2027, steel 2026, textiles 2027, furniture 2028, plus the 18-24 month rule.
B2B & Suppliers
WLL vs MBL: 6 Labels That Get Slings Rejected
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.
Compliance
mAh to Wh: The Number Your Airline Reads Is Not on the Box
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.
B2B & Suppliers
NPT vs BSP Thread: They Screw Together, Then They Leak
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.
Compliance
EI30 vs FD30: Four Markets, Four 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.
Size & Fit
Aluminium Extrusion Slot Width: Why 2020 Is Not a Spec
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.