Construction & Home Improvement Calculators

Convert lumber dimensions to board feet and price a cut list, with nominal and actual sizes handled correctly.

Size heating and cooling for a room using area, climate, insulation, windows and occupancy.

Calculate cubic yards of concrete for slabs, footings, columns, and steps — including waste allowance and bag counts.

Estimate decking boards, joists, posts, fasteners, and total material cost for a deck build.

Work out sheets, joint compound, tape and screws for a room, with openings deducted.

Calculate posts, rails, pickets, concrete, and total cost for a fence run.

Calculate boxes of flooring, underlayment, and total cost including waste for cuts and pattern matching.

Calculate tons and cubic yards of gravel, crushed stone, or road base for a driveway or project area.

Work out how many cubic yards or bags of mulch you need for your beds, and what it will cost.

Calculate how many gallons of paint you need for walls, ceilings, and trim — accounting for doors, windows, and coats.

Estimate roofing squares, bundles, underlayment and cost from your footprint and roof pitch.

Calculate area for rectangles, circles, triangles, and irregular rooms — and convert between units.

Calculate rise, run, stringer length and headroom for a code-compliant staircase.

Calculate tiles, boxes, thinset and grout for a floor or wall, including diagonal layout waste.