Looking for thermal box liners? An insulated liner fits inside an outer carton to reduce heat gain and create a passive shipping pack. Start with the internal carton dimensions, payload size, target temperature and route time so the liner, coolant and closure fit together. Compare the available liners below, use the sizing tool, or request a custom liner when standard dimensions leave gaps or compress the payload.
Thermal Box Liners
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Insulated Box Liners to Compare
Fit the liner, payload and coolant inside the carton
Insulated Box Liners
Compare liner formats for passive parcel and food shipping.
Browse insulated linersE-commerce Cold Chain Packaging
See how liners, coolant and cartons work for direct shipping.
Review e-commerce solutionsBox Liner Sizing Tool
Estimate liner dimensions from the carton and required construction.
Use the sizing toolCustom Insulated Box Liners
Specify carton dimensions, folds, materials, closure and quantity.
Plan a custom box linerNeed a liner fitted to an existing carton?
Send the carton, payload and coolant dimensions. We will review usable space, folds, closure and material options.
- Carton internal dimensions
- Payload dimensions and weight
- Temperature and transit time
- Coolant type and quantity
- Liner material and closure
- Order quantity and destination
Common questions
Can an insulated liner replace coolant?
Usually no. The liner reduces heat gain, while the full packout may still need suitable coolant and testing.
Which carton dimensions should I send?
Send accurate internal dimensions and the usable space after flaps, inserts and closure are considered.
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