The unit
Pallet boxes are a tray, a cap and a sleeve in premium double wall, stitched. Sizes are half Europa, full Europa, half container and full container. They are sold with a heat-treated pallet and without one.
A Packaging Wholesale reorder of single wall postal cartons does not become a pallet box because you buy a lot of them. Stretch wrap holds a pallet of cartons. It is not the sleeve.
Before it is delivered
Read the delivery page for a pallet. The 3pm cutoff and free UK delivery over £50 ex VAT still apply.