CARTON SIZING
How to Size a Shipping Carton
A shipping carton should fit the packed product, required protection, and closure method without creating unnecessary empty space.
SHORT ANSWER
Start with the inputs you can verify
A shipping carton should fit the packed product, required protection, and closure method without creating unnecessary empty space.
What the estimate means
Measure the product at its widest points and include protrusions or irregular shapes.
Add the real thickness of cushioning on both sides of every protected dimension.
Where estimates go wrong
Check whether internal or external carton dimensions are being quoted before ordering.
Keep the source measurements and assumptions with the result so another person can review or update the estimate later.
A practical workflow
- Measure the finished product, not a nominal specification.
- Add cushioning and divider allowances to each dimension.
- Build and test a sample with the intended tape, insert, and fill.