Carpentry & Framing Division

Carpentry & Deck Calculators

Building code compliant calculators for stair layout, residential deck framing, privacy fences, and wall studs.

Stair Stringer Calculator (7/11 Rule)

Calculate exact riser heights, tread runs, stringer diagonal lengths, and stair slope angles.

Calculate complete BOM: 4x4 posts, 2x4 stringer rails, dog-ear pickets, and post concrete bags.

Calculate floor joists (2x8/2x10), 5/4x6 decking boards, rim lumber, and joist hangers.

Calculate vertical 2x4/2x6 studs (16" or 24" OC), double top plates, bottom sole plates, and headers.