Studs Calculator
Estimate studs and plates for wall framing with openings and waste.
Quick guide
- Start with total wall length and choose a stud spacing (16" or 24" on center are common).
- Add openings (doors/windows) because headers and king/jack studs add extra lumber.
- Add a waste factor for bad studs, cut-offs, and layout changes (often 5-10%).
Studs Calculator
Estimate studs and plates for wall framing with openings and waste.
Units
Openings (optional)
Tip: a basic door/window opening often adds king + jack studs on both sides (4 studs). Adjust as needed.
Plates
Optional prices
Leave prices blank to hide cost. Plate pricing varies by market—use your best estimate.
Results
- Estimated studs (with waste)
- 35
- Studs (before waste)
- 31
- Plate length (linear feet, with waste)
- 132
- Plate length (linear feet, before waste)
- 120
Note: this is a planning estimate. Corners, T-walls, blocking, headers, and local code requirements can change real counts.
How to estimate studs
- Measure the total length of walls you plan to frame (sum each wall length).
- Choose stud spacing based on your project and local code/practice.
- Add extra studs for openings and corners, then round up for waste.
Assumptions to double-check
- This is a planning estimate—real framing varies by corners, T-walls, blocking, and layout.
- Openings often need extra studs (king/jack), plus headers and cripples not counted here.
- Always follow local code and engineering requirements for structural walls.
Buying tips
- Use actual lumber dimensions and grade recommended for your project.
- Buy a few extra studs to cover warping and defects.
- If you're pricing plates, confirm whether you're buying by linear foot or by full boards.
Last updated: Dec 2025
FAQ
How many studs do I need for a wall?
It depends on wall length, stud spacing, and openings. Enter total wall length and choose 16" or 24" spacing to get an estimate.
Do doors and windows add studs?
Yes. Openings typically add king/jack studs and headers. This calculator lets you add extra studs per opening as a simple estimate.
Is this accurate for load-bearing walls?
Use this as a planning estimate only. Always follow local code and engineering requirements for structural walls.
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Browse this category →Disclaimer
Results are estimates for informational purposes only. Always verify measurements and product specifications.