Brick Calculator
Estimate the bricks for a wall in UK or US brick sizes, allowing for mortar joints, openings and waste.
Construction Tools
Concrete, paint, tiles, bricks, roofs, stairs and gravel — material estimates for building and DIY projects.
Concrete Calculator
Work out how much concrete a slab, footing or round column needs, in cubic metres, cubic yards and bags.
Gravel and Mulch Calculator
Work out the volume, weight and bags of gravel, sand, topsoil or mulch for an area.
Paint Calculator
Estimate how much paint a room needs from the wall size, doors, windows and number of coats.
Roof Pitch Calculator
Convert rise and run into roof pitch, angle and slope, with rafter length and roof area.
Stair Calculator
Plan straight stairs: number of steps, riser height, treads, total run and stringer length.
Tile Calculator
Count the tiles and boxes you need for a floor or wall, including grout joints and waste.