Walls & finishes · Tool 07

Wall panel calculator

Work out the layout before the cuts. Work out your panel layout before the first cut.

Your measurements

How this calculation works

Columns = round up(wall width ÷ effective panel width). Rows = round up(wall height ÷ effective panel height). Purchase = round up(columns × rows × (1 + allowance / 100)).

A worked example

A 4 m wide, 2.4 m high wall with 0.6 × 2.4 m panels needs 7 columns and 1 row. At 10% extra allowance, buy 8 panels.

Before you buy

Panels keep their entered orientation. This conservative grid does not reuse offcuts or deduct openings. Use effective installed dimensions for overlapping or interlocking panels. Battens, fixings, sockets and finishing trims are separate items.

A few useful answers

Why not divide areas?

Area division can undercount when panels do not divide evenly across the width or height. Rounding each direction first protects against that mistake.

Are my results saved?

Use Add to project to keep material estimates in your browser. You can copy results or print them at any time. No account or remote project storage is used.

Are the defaults product recommendations?

No. They are transparent example assumptions. Replace coverage, sizes, prices and allowances with your actual product details.