Planning glossary
On center
Spacing measured from the center of one repeated element to the center of the next, commonly abbreviated O.C.
Example
Studs at 16 inches on center have centerlines 16 inches apart; their clear gap depends on actual member width.
Related concepts
Stud
A repeated vertical wall-framing member whose material, size, grade, spacing, and role come from a reviewed assembly or design.
Read definitionPlate
A horizontal framing member at the top or bottom of a framed wall; quantity and detailing depend on the assembly.
Read definitionTolerance
The permitted or expected variation from a nominal measurement, distinct from display rounding.
Read definitionUse the term in context
Definition boundaryThis planning definition is not a substitute for the definition in an adopted code, standard, contract, manufacturer instruction, or professional document. Confirm the controlling meaning for the project.