Construction & DIY Calculators

Find the cubic yards of concrete for a slab from length, width and thickness, plus how many 60 lb or 80 lb bags it takes.

Calculate the concrete for footings from length, width, depth and count — in cubic yards and bags.

Calculate square footage and square yards from length and width, and the total cost at a price per square foot.

Work out how many boxes of flooring you need from the room size, the coverage per box and a waste allowance.

Find how many tiles you need for a floor or wall from the area, the tile size and a waste allowance.

Estimate the gallons of paint for a whole room’s walls from the total wall length, height, coats and openings.

Estimate drywall sheets, screws and joint compound from the total wall and ceiling area and the sheet size.

Estimate roof area, roofing squares and shingle bundles from the roof footprint and its pitch.

Convert roof rise and run into a pitch ratio, the slope angle in degrees and the area multiplier.

Calculate cubic yards and tons of gravel for a driveway or base from length, width and depth.

Find the cubic yards of mulch and the number of 2-cubic-foot bags for a garden bed by length, width and depth.

Calculate cubic yards and tons of topsoil for a lawn or bed from length, width and depth.

Estimate posts, rails and pickets for a fence from the total length and post spacing.

Find how many deck boards and how much linear footage you need from the deck size, board width and gap.

Work out the number of steps, the exact riser height, the tread run and the total run from your total rise.

Calculate board feet of lumber from thickness, width, length and quantity — and the total cost per board foot.

Estimate the number of bricks and mortar for a wall from its size and the brick type, with waste included.

Find how many pavers you need for a patio or walkway from the area and the paver size, with waste included.

Estimate how many bags of batt insulation you need for an area, and the thickness a target R-value takes.

Calculate how many sheets of plywood or OSB you need to cover an area, with a waste allowance.

Estimate the studs for a wall from its length, the on-center spacing, openings and corners.

Convert length, width and depth into cubic yards and cubic feet for concrete, gravel, soil or mulch.