Framing Calculator

Enter wall segments, openings, spacing, and plate style to get a fast framing takeoff with editable assumptions.

Wall segmentsftExample: 10, 12, 10, 12 — one length per wall, measured tape-to-tape.

Active project chain

Run Room Layout to auto-populate wall segments here.

Door widthsftRough opening width of each door, e.g. 3, 2.5.Door heightsftRough opening height of each door, in the same order as widths.Window widthsftRough opening width of each window, e.g. 4, 3.Window heightsftRough opening height of each window, in the same order as widths.

Stud spacinginStud-to-stud spacing. 16 or 24 in is standard framing.Stud lengthftLength of a single wall stud, typically matched to ceiling height.Story countstoriesHow many stacked stories this wall run covers.

Advanced framing assumptions (optional)

Corner and opening padding, waste, plate and stud specifics — defaults work for typical framing.

Corner countcountHow many wall corners this layout has.Extra studs per cornerstudsAdditional studs added at each corner for backing.Extra studs per openingstudsAdditional studs (king/cripple) added at each door or window.Waste percent%Extra material to cover cuts and mistakes. 10% is a common default.

Double top plates are standard for load-bearing walls; single is sometimes used for non-load-bearing partitions.

Stud sizeInformational

Turn this on if the framing takes place below grade and needs basement-specific handling.

Ceiling joists (optional)

Real beam-deflection sizing, not a static span table — see the joist formula in Formula details below.

Turn this on if you want CrewMeasure to also size and count ceiling joists for this run.

Floor joists (optional)

Same beam-deflection sizing as ceiling joists, typically at a higher live load.

Turn this on if you want CrewMeasure to also size and count floor joists for this run.

You'll need 54 studs for 44 ft of wall framing.

You'll need

Framing estimate

Total studs

54 studs

Linear feet to buy

621 ft

Actual: 620.4000000000001 ft (rounded up for purchase)

Warnings

WARNING Rough Estimate: header sizes use the jobsite "span (ft) ~ lumber depth (in)" rule of thumb, not an engineered or IRC-table lookup. This is not load, species, or story-count aware. Verify with a span table or engineer before ordering.

Detail values

Regular studs (per story): 38
Corner studs (per story): 12
Opening studs (per story): 4
Story multiplier: 1
Bottom plate: 44 ft
Top plate: 88 ft
Total linear feet: 564 ft
Doors: 1
Windows: 1
Header rough estimate — Door 1: 2x4
Header rough estimate — Window 1: 2x4

Assumptions

Extra studs per corner: 3
Extra studs per opening: 2
Stud size: 2x4 (informational -- current stud-count math is driven by spacing, not width)
Story count: 1
Header sizing method: Rough estimate only ("span (ft) ~ lumber depth (in)"), the same rule of thumb Omni Calculator's own header calculator uses and explicitly labels as not code-based / no IRC reference cited. Not mixed into purchase quantities -- verify with a span table or engineer before ordering.

Included: wall studs, top and bottom plates, waste allowance.

Not included: labor, permits, engineering review or stamped plans, fasteners and connectors unless explicitly itemized above.

Formula details

Regular studs (per story): sum(ceil(wallLengthInches / spacing) + 1)
Corner studs (per story): cornerCount x extraStudsPerCorner
Opening studs (per story): (doorCount + windowCount) x extraStudsPerOpening
Story multiplier: storyCount + (basementIncluded ? 1 : 0)
Applied to every wall-run total (studs, plates, linear feet), mirroring shed-barn.ts's roofPlaneCount multiplier pattern.
Total linear feet: (bottomPlate + topPlate + (totalStuds x studLength)) x storyMultiplier
Header rough estimate: recommendedNominalDepthIn = smallest standard depth >= openingSpanFt
"span (ft) ~ lumber depth (in)" jobsite rule of thumb -- see shared/header-sizing.ts. Not code-based; verify before ordering.
Joist deflection-limited span: L = cbrt(8 x E x I / (25 x u)), deflection limit L/240
See shared/joist-sizing.ts for the AWC NDS Table 4A modulus-of-elasticity source and full derivation.

FAQ

Do opening widths affect the stud math yet?

Opening count drives extra king and jack studs right now. Widths are captured for later advanced framing work.

Can I change corner framing assumptions?

Yes. Extra studs per corner and per opening are editable, not hidden defaults.

Why is linear footage shown as well as stud count?

Linear footage helps when you are pricing lumber packs or checking total material volume with waste applied.

Wall layout