For the projects you have in mind

Less guesswork.
More getting it done.

Know what you need before you start. Practical calculators for materials, waste and costs — from the first measurement to your shopping list.

Free to use. No sign-up. Your measurements stay in your browser.

A plan taking shape01 / Backyard deck
Illustrated deck with parallel boards, dimension lines and planting
Measure twice.Buy with confidence.
Metric & imperialWaste includedYour local pricesPrintable shopping lists

Start with your project

What are you building?

Useful numbers, clear assumptions, and a list you can take to the supplier.

From idea to materials

A good project starts
with a sensible plan.

No mystery prices or one-size-fits-all quantities. Use your measurements, your product sizes and your supplier’s prices.

1
Measure your space

Choose metres or feet and enter the area you actually plan to cover.

2
Make it your own

Set product sizes, waste and prices to match the materials you will buy.

3
Take your list with you

Print or download quantities and assumptions before requesting a quote.

Before the first cut

A little know-how.

Explore all planning guides ↗

01 / Measure

Measure the space you will cover

Break awkward spaces into simple shapes and avoid double-counting.

02 / Allow

Waste, cuts and whole packs

Understand why coverage and purchased quantities are different.

03 / Budget

Build a useful material budget

Use supplier prices and spot what the estimate leaves out.

Room to grow

More projects on the drawing board.

Future calculator ideas. The three tools above are available now.

ConcreteDrywallFenceRoofingTileInsulationRetaining wall