Construction calculators

Slab volume in m³ and 40 kg bag count.

Tiles needed from room area, tile size, and waste.

Litres of paint from area, coverage, and coats.

Brick count for a wall with mortar joints.

Pitch ratio, angle, and slope percent from rise and run.

4×8 sheet count for a wall area.

Planks or packs needed from floor area.

Volume and tonne estimate for a gravel pad.

Step count, riser height, and total run.

4×8 plywood sheets for a flat area.

Posts, rails, and pickets for a perimeter.

Steel weight by diameter, length, and bar count.