Framing Calculator

Estimate base studs, studs to buy, and total stud cost for a wall.

Wall Inputs

Wall length

OC spacing (on-center)

Common OC spacings: 400 mm, 406.4 mm (16″), 487.68 mm (19.2″), 609.6 mm (24″).

Pricing

Price per stud

Estimated waste

Waste helps cover offcuts, defects, and mistakes. Many builds use around 10% to 15%.

Results

Base studs needed

—

Includes both end studs. No waste added.

Studs to buy

—

Waste applied, then rounded up to whole studs.

Total cost

—

Based on studs to buy × price per stud.

Step-by-step

Convert wall length and spacing to meters.
Base studs = ceil(L / s) + 1 so both ends are studded even when the length is not an exact spacing multiple.
Studs to buy = ceil(base studs × (1 + waste)).
Total cost = studs to buy × price per stud.

Assumptions

This estimates studs along one straight wall run only.
Door openings, corners, extra kings/jacks, plates, and blocking are not included.
Waste is applied to the stud quantity you buy, then rounded up to whole studs.

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