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
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.