Framing Stud Count Calculator
Studs needed = wall length / spacing + corners + 10% waste.
Result
Studs needed
31
24 along wall + 4 corner + 10% waste.
- Wall length30 ft
- Spacing16" O.C.
- Studs along wall24
- Corner extras4
- Total (with waste)31
Step-by-step
- Studs along wall = ⌈30 / 1.33⌉ + 1 = 24.
- Add corners: 24 + 4 = 28.
- Round up with 10% waste: 31.
How to use this calculator
- Enter wall length.
- Pick standard 16" spacing or advanced 24".
- Adjust corner count for your specific framing layout.
About this calculator
16" on-center is the residential standard for load-bearing walls in the US (24" allowed under "advanced framing" in some codes). Each corner needs extra studs (typically 3 for an L corner). Add 10% waste for cuts, defects, and re-cuts.
Frequently asked
16" is conservative and traditional. 24" with engineered headers and 2×6 studs ("advanced framing") uses ~30% less lumber and same load capacity.
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