CENTER-TO-CENTER · C-C
The fit measurement for a two-hole pull.
Center-to-center is the straight-line distance from the center of one mounting hole to the center of the other. If existing holes will be reused, the replacement pull must match that measurement exactly.
A one-hole knob or T-Bar has no center-to-center dimension. Its visible diameter, width, projection and base footprint still affect scale and coverage.