Stud Calculator
Estimate studs needed for wall framing
Total length of the wall
On-center spacing
Standard 36" door
Standard 36x48" window
Field Studs
—
studs
Extra (corners/openings)
—
studs
Total Studs
—
studs
Top/Bottom Plates
—
boards
Estimated Cost
—
USD
Disclaimer: Results are estimates based on standard formulas. Not a substitute for professional advice from a licensed contractor, engineer, or architect. Verify all calculations before making purchasing or construction decisions.
How to Use This Calculator
Our stud calculator accounts for field studs, corners, openings, and plates for accurate framing estimates.
- Measure total wall length
- Choose stud spacing
- Count doors and windows
- Enter specifications
- Add 10% for waste and miscuts
AI Insights
Smart analysis for your project
Smart Estimates
Our AI cross-references material costs, regional pricing, and project complexity for more accurate estimates.
Waste Optimization
AI-calculated waste factors based on project type, not flat percentages. Saves 5-15% on material costs.
Best Practices
Recommendations derived from building codes, contractor data, and thousands of completed projects.
Calculation Formula
Field studs = (Wall length / Spacing) + 1
Extra studs = 3 per corner + 2 per opening + 2 per header
Plates = Wall length x 3 / Board length
Frequently Asked Questions
How far apart should wall studs be?
16" on center for load-bearing walls, 24" for non-load-bearing interior walls.
How many studs for a 20-foot wall?
About 16 field studs + 6 extra for corners and plates = about 22 studs total with 16" spacing.