Every calculator uses UK material sizes: 215x102.5x65mm bricks, 2400x1200mm plasterboard, 25kg cement bags, 2.5L/5L paint tins. No converting from American sizes.

Visual Waste Diagrams

See exactly where every sheet, tile and board goes. Green for full pieces, amber for cuts, red for waste. Know what you're buying before you buy it.

Real Cutting Patterns

Not just "area divided by material size plus 10%". We calculate actual sheet layouts, optimal orientation, reusable offcuts and true waste.

100% Free, No Signup

All calculations run in your browser. No accounts, no limits, no data stored on servers. Bookmark it and use it on site.

How Our Waste Diagrams Work

Every material calculator shows a visual cutting layout

Full Pieces

Uncut materials used whole — zero waste

Cut Pieces

Materials that need cutting to fit — dimensions labelled

Waste Offcuts

Material you can't reuse — shows you exactly what's wasted

Calculate it. Build it.

Stop guessing. Know exactly what you need before you go to the merchant.