CodeASystem calculators

Construction & DIY calculators

Construction & DIY8

Construction calculators for concrete volume, paint coverage, tiles, gravel, drywall, square footage and roof pitch.

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8 tools

Estimate cubic yards of concrete for a slab, plus the number of 80-lb or 60-lb bags to buy with a waste allowance.

Work out how many gallons of paint cover your walls after subtracting doors and windows, for one, two or three coats.

Count how many tiles fill a floor or wall, including a waste allowance for cuts, breakage and future spares.

Convert bed area and depth into cubic yards of mulch or gravel, plus 2-cu-ft bag counts and an estimated gravel tonnage.

Estimate 4×8 drywall sheets and screw weight needed to cover a wall or ceiling area, rounded up to full boards.

Turn a roof’s rise-in-12 pitch into degrees of angle, grade percent and the slope multiplier that scales footprint to roof surface.

Add up to three rectangular sections to find total square footage, with acre equivalents for land-scale projects.

Count studs for a wall framed at 16 or 24 inches on center, with plate lumber and corner/opening guidance included.