Roofing Calculators
Pitch, rafters, shingles, underlayment and metal panels.
Work out roof pitch, rafter lengths and how much material a roof actually needs. Roof surfaces are always larger than the footprint underneath them, so every estimate here accounts for slope rather than treating the roof as flat.
Calculators
In the works
Rafter Length CalculatorFull rafter length from span, pitch and overhang — coming soon
Shingle CalculatorBundles and squares from roof area and pitch — coming soon
Metal Roofing CalculatorPanels and trim for standing-seam or corrugated — coming soon
Other categories
Concrete Slabs, footings, piers, walls and bag counts. Garden Mulch, topsoil, gravel, sod and raised beds. Decking Boards, joists, spacing, footings and railing. Interior Paint, drywall, flooring, tile and trim. Patio Pavers, base gravel, sand, edging and retaining walls. Woodworking Board feet, cut lists, shelf spans, angles and joinery.