Custom Boxes Empire / Connected packaging
Insert and cavity size calculator
Insert outer size and cut-out size for a product cavity.
How it works
Insert outer size = product + border on each side. Cavity = product + fit allowance.
Tip
Leave a finger notch on one side so the product can be lifted out.
Questions
Foam or card insert?
Foam cushions fragile items; card and moulded pulp look premium and are paper-based.
How deep should a cavity be?
Deep enough to hold the product at about half its height, or fully for fragile items.
Planning estimate only. Confirm sizes, strength and costs with samples and your written quote.
PLAN YOUR PACKAGING
From a better brief to a tailored quote.
Check sizing, compare materials and share your requirements. Final specifications and pricing are confirmed by the team.
Request a packaging quoteSelected delivery market: United Kingdom
Planning delivery to one of these British destinations?
London, Manchester, Birmingham, Bristol, Edinburgh
Add the delivery city and postcode to your brief. Freight, duties and delivery availability are confirmed in the quote.