It does not need to be tight, but it shouldn't be too loose. Tuck the excess plastic at the bottom of the bag around the corners and edges of the pallet.
[header] How to shrink wrap a pallet [title] Place your heat-shrink bag over your items and pallet. [step] If you do not have heat-shrink bags and are using manually applied film, use the steps in the guide " preparing to shrink-wrap using manually applied film " below. [substeps] Make sure that the bag is snug over the pallet and items.