Material math, done right the first time
23 free calculators for concrete and masonry, site work, roofing, framing, insulation and interior finishes. Built with real waste factors, bag yields and code minimums from more than 20 years in residential and commercial building.
Concrete, masonry & site work
Concrete Calculator
Slabs, footings, columns and post holes. Yards and bag counts.
Rebar Calculator
Bar count, lineal feet and laps for slabs and footings.
Block Wall Calculator
CMU count, mortar and grout fill for block walls.
Brick Wall Calculator
Veneer or solid brick in running, Flemish, English and more.
Gravel & Base Calculator
Cubic yards and tons of crushed stone, base and fill.
Mulch, Topsoil & River Rock Calculator
Bags or bulk yards for any bed. River rock in tons, pine straw in bales.
Cubic Yard Calculator
Feet and inches to cubic yards for any material.
Roofing
Roof Pitch Calculator
Pitch, angle and rafter multiplier from rise and run.
Roofing Shingle Calculator
Squares, bundles, starter strip and ridge cap with waste.
Metal Roofing Calculator
Panels, screws, closures and trim for exposed-fastener and standing seam.
Roof Underlayment Calculator
Synthetic or felt rolls, plus ice and water shield for eaves and valleys.
Roof Sheathing Calculator
OSB or plywood sheets and clips for any roof area and pitch.
Framing & structure
Stair Stringer Calculator
Riser count, rise, run and a cut layout.
Square Footage Calculator
Rectangles, L-shapes and whole floor plans.
Wall Framing Calculator
Studs, plates and headers for a wall at 16" or 24" on center.
Deck Calculator
Decking boards, joists, beams, posts and fasteners.
Insulation Calculator
Batts, rolls or blown-in bags for walls and attics by R-value.
Interior finishes
Drywall Calculator
Sheets, mud, tape and screws for walls and ceilings.
Tile Calculator
Tiles, thinset and grout by layout pattern.
Flooring Calculator
Hardwood, laminate, vinyl plank and carpet, with waste by layout.
Wall Paneling Calculator
Shiplap, tongue and groove, board and batten and wainscoting.
Paint Calculator
Gallons of primer and paint by room, coats and openings.
Trim & Baseboard Calculator
Lineal feet and pieces of base, casing and crown with miter waste.
Why trust these numbers?
Every calculator here is written by a tradesman with more than 20 years in residential and commercial construction, and a career in design engineering, takeoffs and estimating. The waste factors and rules of thumb are the ones used on real jobs, and every page shows exactly how the math works. More about ForemanMath.