Free planning tools
How much material do you actually need?
How much concrete, brick, paint, tile or gravel do you need? Free construction material calculators, instant, metric and imperial.
For tradespeople
Quotes your clients can sign
- Labour, margin and tax on top of the free material list.
- Your logo on the quote, printed or saved as PDF.
- No account, nothing to install. Pay once or monthly, cancel any time.
Calculators
- 3D room planner and cost estimatorSet the room size, see it in 3D with your colours, and get paint, tiles and cost in one go.
- Concrete calculatorSlabs, footings, posts and columns: cubic metres or yards, plus how many bags.
- Brick and block calculatorBricks or blocks for a wall, minus doors and windows, with mortar volume.
- Paint calculatorLitres or gallons for a room or a wall, by number of coats and coverage.
- Tile calculatorTiles and boxes for a floor or wall, with grout gap and cutting waste.
- Gravel, sand and soil calculatorVolume and weight for a driveway, path or bed, in cubic metres, yards or tonnes.
- Concrete cost calculatorReady-mix truck with short-load and delivery fees against bags at the shelf price.
- Fence calculatorPosts, rails, boards or pickets, screws and the concrete for the post holes, gates included.
- Concrete block calculatorCinder blocks by course, bags of mortar, grout for the cells at your rebar spacing, and the cost.
- Topsoil and fill dirt calculatorYards and tons to order with settlement, truckloads or bags, and bulk delivery priced against bags.
- Gravel cost calculatorYards to tons for each stone, priced per ton or per yard with delivery and spreading.
Guides
All guides- How much paint do I need for a 12x12 room?
- How much paint do I need for a ceiling? Ceiling paint calculator for 10x10 to 20x20 ft
- How many bricks do I need for a fire pit? Fire pit brick calculator for 30 to 48 inch pits
- How much paint for a whole house interior? (1,000 to 3,000 sq ft)
- Building a block wall: how many blocks and bags of mortar by length and height, plus rebar and grout
- How many blocks per m2? 440 x 215 concrete and breeze blocks, mortar and waste
- How much does gravel weigh per yard? Gravel, topsoil, fill dirt and sand in lb, tons and kg
- Concrete slab cost calculator: cost per square foot, 10x10 to 30x30 (2026)
From the blog
All articles- How to order gravel by the ton (and check what the truck brings)
Measure, turn square feet into tons for your stone, pick bags, bulk bags or a truck, read a per-ton quote against per-yard, and check the delivery ticket.
- How to build a gravel path that stays put (with quantities)
Edging first, a compacted crushed stone base, two inches of pea gravel on top: the whole job in order, with tons and bags worked out for 3 and 4 ft paths of 10 to 50 ft.
- How to build a block retaining wall under 3 ft (with quantities)
Trench, base, first course, drainage pipe and stone, setback and caps, in order, with the block counts and the tons of stone for 10 to 50 ft walls at 1 to 3 ft high.
Before you order
These are planning estimates. Bag yields, brick sizes, paint coverage and material densities vary by manufacturer and region, so check the figures printed on the product you are buying and round up. For structural work follow your local building code and a qualified professional.