Concrete & Masonry calculators
Concrete, rebar, gravel, sand, asphalt, block, brick, mortar, paver and retaining wall calculators for slabs, footings, walls, patios and driveways.
- Asphalt CalculatorEstimate how many tons of hot mix asphalt a driveway, parking pad or pothole needs, with cubic yards and bags of cold patch.
- Brick CalculatorWork out how many bricks to buy for a single-layer brick wall or veneer, with extra for breakage and the bags of mortar mix to lay them.
- Concrete Block CalculatorWork out how many concrete blocks to buy for a wall, from its length, height and openings, with extra for waste and the bags of mortar mix.
- Concrete CalculatorWork out how much concrete you need for a slab, footing or column in cubic yards, cubic feet and bags of pre-mixed concrete, with extra for waste.
- Concrete Slab CalculatorEstimate cubic yards and bags of concrete for a patio, shed base, garage floor or driveway slab, including extra for waste and a thickened edge.
- Sonotube Concrete CalculatorWork out the concrete for round column forms and post footings from diameter, height and count, in cubic feet, cubic yards and bags.
- Concrete Weight CalculatorFind the weight in pounds and tons of a concrete slab, block or column from its size, for planning hauling, trailer loads, demolition and lifting.
- Gravel CalculatorEstimate how much gravel a driveway, path, patio base or drainage trench needs, in tons, cubic yards and bags of all-purpose gravel.
- Mortar CalculatorEstimate how many bags of pre-mixed mortar a brick or concrete block wall needs, from its length, height and openings, with extra for waste.
- Paver CalculatorWork out the pavers for a patio or walk, plus the base gravel, bedding sand, polymeric sand and edge restraint, with the extra for cuts one paver maker adds.
- Pea Gravel CalculatorEstimate pea gravel for a garden path, seating pad, plant bed or tree ring in cubic yards, tons and bags, with notes on edging.
- Rebar CalculatorWork out the rebar for a concrete slab: bars each way at your spacing, the bars to buy with laps, total length, weight, ties and chairs.
- Retaining Wall CalculatorWork out the blocks, caps and gravel for a segmental block retaining wall, with the buried course, leveling pad and drainage gravel the block makers call for.
- Sand CalculatorEstimate sand for a sandbox, paver bedding, play area or leveling layer under a pool or shed, in tons, cubic yards and bags.