Wall studs are typically spaced either 16 inches or 24 inches apart, measured "on center," meaning from the center of one stud to the center of the next.
- The most common standard spacing is 16 inches on center , which is widely used for interior load-bearing and non-load-bearing walls as well as exterior load-bearing walls. This spacing aligns well with standard drywall panel sizes and provides strong structural support
- 24 inches on center spacing is also used, especially in newer homes or exterior walls where increased insulation is desired. This spacing reduces the amount of lumber used and allows for more insulation, but it may not be suitable for all load-bearing walls and depends on local building codes
- Older homes may have irregular stud spacing, sometimes closer than 16 inches or varying between 16 and 24 inches
In summary, studs are most commonly spaced 16 inches apart, but 24 inches is also an accepted spacing in certain applications and regions, always subject to local code requirements.
