Clearance is working space around a product. Too little can crush protective material; too much can increase motion, fill use, and shipping volume.
Separate wrap from working clearance
Protective wrap has physical thickness. Working clearance is additional room for insertion, tolerances, and operator handling. Add both on each relevant side instead of treating them as one vague allowance.
Match clearance to product risk
Fragile, heavy, sharp, irregular, or surface-sensitive items often need a designed protection system rather than a universal gap. Product orientation and stacking load also matter.
Control movement
A successful pack should limit damaging movement without applying harmful pressure. Void fill is not a substitute for structural support when the product needs bracing or suspension.
Run a physical pack test
Use the calculator as a box shortlist, then pack the real item with production materials. Check insertion effort, closure, movement, corners, and the final external dimensions.
Dispatch checklist
- Measure the wrapped product.
- Allow for dimensional tolerances.
- Check final closure and bulging.
- Document the approved pack method.