Roofing calculators
8 calculators Roof Pitch Calculator Find roof pitch as x:12, slope angle, grade and slope factor, plus rafter length from rise, run, span or angle. Add a roof area and material cost estimate.
Open Roofing Calculator Find roof area, roofing squares, shingle bundles, underlayment, nails, ridge cap and drip edge from your house size and pitch, with an optional material cost estimate.
Open Birdsmouth Cut Calculator: Seat Cut, Heel Depth, and Rafter Length Calculate birdsmouth cut dimensions instantly: seat cut length, heel cut depth, rafter run, rise, total rafter length, and IRC minimum rafter depth. Metric or imperial.
Open Metal Roof Cost Calculator Calculate metal roof costs instantly. Enter roof size, material type (steel, aluminum, copper, zinc), pitch and removal to get a full cost breakdown with 2026 pricing.
Open Rafter Length Calculator Calculate rafter length from building width, roof pitch, overhang, and ridge board thickness. Get slope factor, angle, and birdsmouth depth in metric or imperial.
Open Roof Shingle Calculator Calculate how many shingle bundles and squares you need for any roof. Enter length, width, and pitch, then add a unit price for an instant cost estimate.
Open Roof Truss Calculator: Rafter Length, Count, and Cost Calculate rafter length, ridge board length, number of trusses, sheathing area, and total project cost. Imperial and metric units, with step-by-step math.
Open Snow Load Calculator Calculate flat roof snow load, sloped roof snow load, and drift surcharge per ASCE 7-22. Enter ground snow load, exposure, thermal, and importance factors.
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