Building material spec diagrams with exact sizes

Upload a photo of tile, panel, profile, or fixture and mark exact dimensions, thickness, and coverage. Contractors and distributors get the specs they need to order the right quantity.

Runs in your browser — no download

What is a building material spec diagram?

A building material spec diagram is a labeled product image showing a material's exact dimensions, thickness, coverage per unit, and installation specs, so contractors and distributors can order the right size and quantity with confidence. SizeMarker marks every size accurately with deterministic geometry — real measurements, not AI estimates.

Exact size, thickness and coverage

Mark length, width, thickness, and coverage per piece. Endpoints snap to the edge so measurements stay true to the product.

Grade, finish and installation specs

Label material grade, surface finish, edge type, and coverage in bilingual text buyers can order from.

Zoom into texture and edge profiles

Highlight a surface texture, chamfer, or interlock so buyers judge finish and fit from the image.

Export to Alibaba and platform sizes

Pick a main-image size and export a clean spec image — no re-cropping.

How it works
  1. 1 Upload a material photo
  2. 2 Mark size, thickness & specs
  3. 3 Export platform main images & spec table

Help buyers order the right size and quantity

Start free · 30 credits on sign-up
Building Material Spec Diagram Maker | SizeMarker