Carpentry & Roofing
Lumber, board feet, stairs, rafters, decking, shingles, siding, and fencing calculators for builders and DIY.
Wooden Floor Joist Span Calculator: Timber Sizing & Deflection Analysis
Siding Calculator: Estimate Panels, Cost & Trim for Exterior Walls
Vinyl Fence Cost Calculator: Estimate Materials, Labor & Total Price
Vinyl Fence Sections Calculator: Panels, Posts & Concrete Estimator
Straight Stairs Calculator: Rise, Run & Stringer Math Simplified
Spiral Staircase Calculator: Ergonomic Dimensions, Headroom & Blondel’s Rule
Baluster Spacing Calculator: Code-Compliant Railing Layout Guide
Vinyl Siding Calculator: Estimate Panels, Trim & Squares Accurately
Round Pen Calculator — Panels, Footing & Cost Estimates
Roof Truss Calculator: Span, Pitch & Load Force Analysis
Shingle Roofing Calculator: Estimate Bundles, Nails & Materials
Roof Pitch Calculator — Find Rafter Length, Slope & Cut Angles
Roofing Material Calculator: Estimate Squares, Pitch & True Surface Area
Rip-Rap Volume Calculator: Stone Weight, Bulk Density & Haulage
Rafter Length Calculator: Roof Pitch, Cuts & Framing Math