How Many Studs Do I Need for a Wall?
If you’re building a wall, one of the first questions you’ll ask is: How many studs do I need? The answer depends on wall length, stud spacing, and wall layout. This guide explains everything in a simple way, with examples, so you don’t overbuy or come up short.
The Basic Formula
To calculate the base number of studs, use this simple formula:
Wall Length ÷ Stud Spacing + 1
Stud spacing is usually:
- 16 inches on center (Most common for residential)
- 24 inches on center (Used in some non-load bearing walls)
How Many Studs in Common Wall Sizes?
Below are quick estimates for typical wall lengths. Note: These numbers assume standard layouts. Doors, windows, and corners will need extra studs.
How Stud Spacing Affects Quantity
Your choice of spacing directly changes your material list and costs.
16 inches on center
- Stronger, more rigid wall
- Requires more studs
- Standard for load-bearing & interior walls
24 inches on center
- Fewer studs required
- Lower material cost
- Used where code allows (sheds, non-structural)
If you’re unsure which spacing to use, check our 👉 Stud Spacing Guide.
Does Stud Type Change the Count?
In most cases, the number of studs stays the same, but framing rules can vary.
- Wood Studs: Most common, typically spaced 16" OC.
- Metal Studs: Often follow similar spacing but may have different code requirements.
Frequently Asked Questions
Related Framing Tools
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