Wall
Wall Area Calculator
Total wall area of a room or elevation with doors and windows deducted.
net area = perimeter × height − openings
Also called wall square footage · surface area of walls
Home & Construction · 9 calculators
Wall Calculators
Wall area and volume, bricks and blocks, drywall sheets, plaster, wall paint, insulation and studs.
Wall
Wall Volume Calculator
Volume of a wall for material ordering, with the weight in brick, block or concrete.
volume = (length × height − openings) × t…
Also called wall cubic meters · masonry volume
Wall
Brick Calculator
Bricks needed for a wall, with mortar quantity, waste allowance and cost.
bricks = wall area ÷ (brick length + join…
Also called how many bricks do i need · brick quantity calculator
Wall
Concrete Block Calculator
Blocks needed for a wall with mortar, waste allowance and cost, for any block size.
blocks = net wall area ÷ block face area …
Also called cinder block calculator · how many blocks
Wall
Drywall Calculator
Plasterboard sheets, screws, joint compound and tape for a room.
sheets = area × layers × (1 + waste) ÷ sh…
Also called plasterboard calculator · sheetrock calculator
Wall
Plaster Calculator
Plaster or render quantity for a wall area at any coat thickness, with sand and cement.
volume = area × thickness × (1 + waste)
Also called rendering calculator · plastering quantity
Wall
Wall Paint Calculator
Paint for walls only, from the wall area or room dimensions, with openings deducted.
litres = (wall area − openings) × coats ÷…
Also called paint for walls · emulsion calculator
Wall
Insulation Calculator
Insulation rolls or boards needed for a loft, wall or floor, with the cost and energy saving.
units = area × (1 + waste) ÷ coverage per…
Also called loft insulation calculator · how much insulation do i need
Wall
Stud Wall Calculator
Timber or metal studs, plates and noggins for a partition wall, with total linear metres.
studs = wall length ÷ spacing + 1, plus 2…
Also called stud spacing calculator · partition wall timber
Key wall formulas
| Wall Area | net area = perimeter × height − openings |
|---|---|
| Wall Volume | volume = (length × height − openings) × thickness |
| Brick | bricks = wall area ÷ (brick length + joint) × (brick height + joint) |
| Concrete Block | blocks = net wall area ÷ block face area including joints |
| Drywall | sheets = area × layers × (1 + waste) ÷ sheet area |
| Plaster | volume = area × thickness × (1 + waste) |
| Wall Paint | litres = (wall area − openings) × coats ÷ coverage |
| Insulation | units = area × (1 + waste) ÷ coverage per unit |
| Stud Wall | studs = wall length ÷ spacing + 1, plus 2 per opening |
Wall questions
How many bricks per square metre?
Standard UK bricks at a 10 mm joint give 60 bricks per m² for a single skin, or 120 for a one-brick wall.