Roofing calculators
Slope, rafters, and what goes on top.
- Roofing Calculator The whole materials list — shingles to drip edge
- Roof Pitch Calculator Rise & run to degrees, slope %, and the area multiplier
- Rafter Length Calculator Span, pitch and overhang to cut length and board
- Roof Shingle Calculator Bundles, squares and underlayment from the footprint
- Gambrel Roof Calculator Barn-roof rafters, angles, ridge height & area
- Roof Sheathing Calculator 4×8 sheets, nails & cost from footprint and pitch
- Metal Roof Calculator Panels, cut lengths, screws & cost by profile
- Roof Pitch Multiplier The slope factor for every pitch, with chart
Up next: roof area and roof trusses.