Also found in: Acronyms.
on center[′ȯn ′sen·tər]
The measurement made between the centers of two adjacent members.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
center-to-center, on center
The distance between the center line of one element, member, part, or component (as a stud or joist) and the center line of the next.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.