Construction

Framing Calculator

Estimate wall studs and plate boards for wood framing, including on-center spacing, end/corner studs, optional rough-opening allowances, waste, and material cost.

Inputs

Adjust your numbers

Results update as you type.

Enter a wall length and choose the framing layout. Add rough openings only when you want a quick allowance for doors or windows; verify final header and cripple-stud details from your plan.

Measurement units (required)

Wall type (required) Used for labeling the takeoff and for load-bearing waste/spacings warnings.

Wall length (required) Feet in imperial mode or meters in metric mode.

On-center stud spacing (required)

Studs per wall end (required) 1 = plain/open end, 2 = common corner, 3 = conventional T-intersection allowance.

Plate configuration (required)

Plate board length (required) Feet in imperial mode or meters in metric mode.

Number of rough openings Optional door/window opening allowance.

Total rough-opening width Combined rough width of all openings, in feet or meters.

Jack studs per opening

Estimated waste (%) 10–15% is common for framing takeoffs.

Price per stud (USD) Optional. Enter both prices to calculate cost.

Price per plate board (USD) Optional price for one plate board of the selected length.

Results

Live answer

Studs needed —

Top plate boards —

Bottom plate boards —

Studs with waste —

Plate boards with waste —

Estimated material cost —

Opening adjustment —

How it works

Enter wall length, on-center spacing, and the wall type (interior 2×4, exterior 2×4, or exterior load-bearing 2×6). The calculator divides wall length by spacing, adds end and corner studs, then subtracts the studs displaced by each rough opening and adds back the king and jack studs the openings need. Plate boards come from wall length divided by board length for each plate layer; a waste percentage gives you a purchase-ready stud and plate count.