A method of measuring distance between two structural members, such as joists, where you measure from the center of one member to the center of the other. The distance between the center of each joist, commonly 16" or 24". Joists spaced 16" on center are actually 14-1/2" apart.
A measurement term meaning a certain distance between like materials. Studs rafters, joists, and the like in a building placed at 16 inches O.C. will be laid out so that there is 16 inches from the center of one stud to the center of the next.
A measurement for spacing studs, rafters and joists. I.e.: studs placed at 16" O.C. will be laid out so that there is 16" from the center of one stud to the center of the next.
The measurement or spacing of studs, joists, etc. from the center of one to the center of the next one.
Crs, centers. The term used to define the measured spacing between studs, joists, rafters, etc. O.C. measurements are taken from the center of one member to the center of the adjoining member.
A point of reference for measuring. For example, 16 inches on center means 16 inches from the center of one framing member to the center of the next.
A method of measuring distance between two structural members, such as joists, where you measure from the center of one member to the center of the other. Abbreviated O.C.