Construction & Measurement

Calculators for square footage, concrete volume and other on-site measurements.

Estimate how much concrete you need for a slab, wall, footing or column.

Estimate decking board count and material cost from your deck size, board size and spacing.

Estimate how much paint you need from room dimensions or a direct paintable area, with adjustable coverage and coats.

Convert between roof pitch (x:12), angle in degrees, slope percentage and rafter-length multiplier.

Calculate the area of a room or space in square feet or square meters.