Model Scale & BoardPick the model scale and the board thicknesses you can buy. Get every wall, slab and floor height in model millimetres, the board (or stack of two) that matches best, the base size and how many sheets to buy.

SheetT-45
MethodReal size ÷ scale
Unitsmm, m
By@smart_tools_every_week
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Sheet 841 × 594 mm is A1 board; foam board often comes 762 × 508 mm. A 70% yield allows for offcuts and windows cut out.

External wall–
Best board–
Model height–
Sheets to buy–

Model section

Board fit scaled vs board

Model base

Cutting list

ElementRealAt scaleBest boardError