Calculator cluster
Carpentry & framing
Board feet, stairs, rafters, wall studs and deck spans for structural carpentry.
Carpentry & framing
Lumber Board Foot & Cost Calculator
Convert actual lumber thickness, width, length and quantity into board feet or cubic metres, add waste, and estimate material cost in imperial or metric units.
Carpentry & framing
Deck Joist & Beam Span Calculator
Estimate maximum joist span, joist count and whether a mid-span beam is needed from species, 2x size and spacing. Educational spans, not a code table.
Carpentry & framing
Roof Pitch & Rafter Length Calculator
Calculate common rafter length, pitch angle, rise and overhang from building span and a rise-per-12 pitch.
Carpentry & framing
Stair Rise and Run Calculator
Size stair risers, treads and stringer length from total rise and a target step height. Works in inches or millimetres.
Carpentry & framing
Wall Framing Stud Estimator
Estimate studs, extra jack/king pairs for openings, and triple-plate lumber for a wall of given length and on-center spacing.