Carpenter
Framing, stairs, rafters, decks and lumber takeoffs. 9 tools: one is free, the rest are premium.
Free for carpenter
Board feet and lumber cost
Board feet, waste and cost for a lumber order from nominal sizes. No account needed.
Premium tools
All of them come with the carpenter plan.
Plank and lumber weight calculator
Weight of a board, beam or panel from its size, species and moisture, per piece and for the whole stack.
Construction · CarpentryPlank joining methods viewer
How each common wood joint works, where to use it, how strong it is, the tools it needs and the mistakes to avoid.
Construction · CarpentryStair stringer layout
Number of risers, riser height, tread run and stringer length from the total rise, checked against IRC limits.
Construction · CarpentryRafter length and pitch
Common rafter length, ridge rise, angle and overhang from the span and roof pitch.
Construction · CarpentryDeck joist span check
Maximum deck joist span for a lumber species, size and spacing, and whether your span works.
Construction · CarpentryWall framing studs, plates and sheathing
Studs, plate lumber and sheathing sheets for a run of framed wall with openings and corners.
Construction · CarpentryWindow and door header size viewer
Typical header sizes by opening width for an exterior bearing wall carrying roof and ceiling, with jack studs and notes.
Construction · CarpentryInsulation R-value and quantity
Depth, bags, bundles or spray foam sets to reach a target R-value over an area.
Construction · ResidentialThe carpenter plan
All 9 carpenter tools, one plan
$10.20 a month at the launch price (list $12). Save more paying by the quarter or year; add another role for less.