Stud Spacing Reference
Estimate the field-stud count and bay layout for a wall at 16" or 24" on-center.
- Field studs only — add studs for corners, wall intersections, and rough openings.
- 16" o.c. is the common default; check stud size vs. wall height (IRC R602.3).
A reference, not a finder
Detecting studs through a web browser isn't possible — phones lack a reliable way to sense framing from a web page. This is a layout reference: it estimates field studs for a wall length at 16" or 24" on-center. It counts a stud at each bay boundary (both ends) and excludes corners, partition intersections, and rough openings.
Stud size versus wall height versus spacing is governed by IRC R602.3, and 24" o.c. typically calls for 5/8" gypsum board to prevent sag.
Frequently asked questions
How many studs do I need for a wall?
Count one stud at each bay boundary: the field-stud count is the wall length divided by the spacing, plus one. A 16-foot wall at 16" on-center has 12 bays and 13 field studs — before adding extras for corners, partition intersections, and openings.
What is the difference between 16" and 24" on-center?
On-center spacing is measured from the center of one stud to the center of the next. 16" o.c. uses more studs and is the common choice for most walls; 24" o.c. (advanced framing) uses fewer studs and typically calls for 5/8" gypsum board to prevent sag.
Can a website find the studs in my wall?
No. A browser can't sense framing through a wall, so this is a layout reference, not a stud finder — it estimates stud count and bay spacing from the wall length you enter, not from your actual wall.