How many studs for an 8-foot wall?
Quick Answer
An 8-foot wall requires 7 studs spaced 16 inches on center, or 5 studs at 24 inches on center. You'll also need a double top plate (2 boards × 8 ft) and a single bottom plate (1 board × 8 ft) — that's 3 more 2×4s. Total for a basic 8-foot wall: 10 boards at 16" OC.
Quick Reference Table
| Stud spacing | Studs for 8-foot wall |
|---|---|
| 12" on center | 9 studs |
| 16" on center | 7 studs |
| 24" on center | 5 studs |
How to Calculate It Yourself
- 1
Divide wall length by spacing: 8 ft ÷ (16" ÷ 12) = 8 ÷ 1.333 = 6 spaces.
- 2
Add 1 for the starting stud: 6 + 1 = 7 studs.
- 3
Add plates: 2 top plates + 1 bottom plate = 3 more boards.
- 4
Add corner framing: 2–3 extra studs per corner.
- 5
For doors/windows: add 2 jack studs + 2 king studs + header lumber per opening.
Pro Tip
Order 10% extra studs for waste, cuts, blocking, and mistakes. Use the formula: (wall length in inches ÷ spacing in inches) + 1 = stud count, then round up.
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