Framing & Lumber Calculators
Framing quantities come from spacing and span, and framing cost comes from board feet. These calculators keep the two separate so a spacing change shows up as a lumber cost, not a guess.
There are 9 calculators here: Floor Truss vs I-Joist Cost Calculator (the cost difference between floor trusses, I-joists and sawn lumber), 24x30 Garage Shell Material & Cost Calculator (slab, wall framing, trusses and sheathing for a garage shell), Floor Joist Span Calculator (the smallest joist that clears your span, and what it costs), Framing Lumber Cost Estimator (board feet, piece count and cost for a framing order), and 5 more below.
They all work the same way: quantity first, then a waste allowance you can change, then a price built from verified figures and adjusted for your state. Cost is always a range rather than a single number, and every assumption behind it is printed on the page with its source and the date it was last checked.
Topics in Framing & Lumber Calculators
- Wall Framing CalculatorsStud count is spacing, openings and corners — not wall length divided by 16. The spacing comparison prices what moving to 24 in. on center actually saves.2 calculators
- Floor Framing CalculatorsSpan tables decide the member, and the member decides the price. Both calculators here start from the span you have rather than the joist you hoped to use.2 calculators
- Roof Framing CalculatorsPitch turns a run into a rafter length, and a span into a truss order. Stick framing and trusses are priced from the same roof here.2 calculators
- Lumber Takeoff CalculatorsWhole-assembly takeoffs: board feet priced at today’s rate, a full garage shell, and the stringer layout that turns a rise into cut lumber.3 calculators
Every calculator in Framing & Lumber Calculators
- Floor Truss vs I-Joist Cost CalculatorThe cost difference between floor trusses, I-joists and sawn lumber.
- 24x30 Garage Shell Material & Cost CalculatorSlab, wall framing, trusses and sheathing for a garage shell.
- Floor Joist Span CalculatorThe smallest joist that clears your span, and what it costs.
- Framing Lumber Cost EstimatorBoard feet, piece count and cost for a framing order.
- Rafter Length & Cut CalculatorRafter length, plumb cut angle and lumber cost.
- Roof Truss Count & Cost CalculatorTruss count, bracing and delivered cost for a roof.
- Stair Stringer Layout CalculatorRiser height, tread depth, stringer length and lumber cost.
- Wall Stud Count & Lumber Cost CalculatorStud count, plates and lumber cost for a framed wall.
- 16 vs 24 On-Center Stud Cost CalculatorWhat wider stud spacing saves, and what it costs elsewhere.