Coil / Wire-O Hole Position Planner
Enter the binding-edge length, required center pitch and end clearance. The tool returns a feasible hole count and equalized center spacing.
Enter your job values
Use the real values from your job. Optional fields can stay blank; zero should only be used when the value genuinely does not apply.
Your result will appear here
3 required values are still missing.
Paper bulk, grain and equipment can change the geometry
Booklet creep, fold compensation and spine thickness are physical-production estimates. Whenever a fold, bind, die or laminator controls the finished piece, record the actual stock caliper and the equipment/vendor specification rather than converting GSM to thickness by assumption.
What the result is useful for
This helps document a punch pattern before artwork or tab content is placed too close to the binding edge.
How the calculation works
Usable length = bind edge − 2 × minimum end clearance. The tool fits the largest whole number of intervals at the requested pitch, then redistributes the centers evenly within the usable length.
What this calculator cannot know
Hole shape, pitch family, punch disengagement, edge margin and spine diameter are equipment-specific. Use the punch/binding manufacturer setup as final authority.