Accessories · lids
Pallet lids & top caps
The cheapest way to recover warehouse cube. Without a lid, a collared load is a container you cannot stack — and unstackable containers waste vertical space you are already paying rent on.
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In short
A pallet lid closes a collared load and provides a flat, load-bearing surface so another unit can be stacked on top. A top cap does the same job with more structure — essentially an inverted shallow pallet — and is the right choice when the load above is heavy or concentrated.
Both are cut to the pallet footprint. Plywood lids are lightest and cheapest; solid board lasts longer under repeated handling.
Plywood, solid board or top cap
Plywood lid
A single sheet cut to footprint, usually ½″ or ⅝″. Lightest, cheapest, and perfectly adequate when the load above is light and evenly distributed. Edges are the weak point; they delaminate with repeated forklift contact.
Solid board lid
Deck boards on two cleats, like a very shallow pallet deck. Heavier and more expensive, considerably more durable, and repairable board by board — which matters in a returnable system.
Top cap
An inverted shallow pallet with proper structural members. Spreads concentrated load across the collar walls rather than into one spot. Specify this when stacking anything heavy, point-loaded or uneven above.
Why this is a cube problem, not a packaging problem
Warehouse space is priced by the square foot and used by the cubic foot. A load that cannot be stacked wastes everything above it, and in a building with 28-foot clear height that is a great deal of paid-for air.
A collared load without a lid is exactly that: a container with an open top that nothing can safely sit on. Adding a lid at a modest unit cost frequently doubles the storage density of that SKU. On any product where you hold more than a few pallets at a time, the lid pays for itself in weeks rather than years.
The same logic applies to corner boards on wrapped loads — they allow tighter wrap, which allows safer stacking.
Sizing a lid correctly
A lid that is slightly too small falls into the collar. A lid that is slightly too large overhangs and catches on racking. Both are avoidable with one measurement.
The lid should match the outside dimensions of the collar, not the pallet deck, because the collar sits on the deck and the lid sits on the collar. On a 48×40 system that is usually the same number, but on systems where the collar has an external lip it is not.
For plywood lids, allow a small clearance — a millimetre or two — so a slightly swollen lid still seats. Solid board lids on cleats are more forgiving because they can flex slightly.
If you are ordering lids and collars together we size them as a set, which removes the question entirely.
Reference
Lid selection
| Type | Weight | Durability | Best for |
|---|---|---|---|
| ½″ plywood | Lightest | Moderate | Light, evenly distributed loads above |
| ⅝″ plywood | Light | Good | General use |
| Solid board on cleats | Medium | High, repairable | Returnable systems, repeated handling |
| Top cap (inverted deck) | Heaviest | Highest | Heavy or point-loaded stacking above |
Avoid these
Mistakes we see
Using a flat lid under a point load
A sheet spreads load poorly. If what sits above is heavy or concentrated, a top cap with structural members is the correct choice.
Sizing the lid to the pallet instead of the collar
The lid sits on the collar, not on the deck. Where the collar has an external lip these are different numbers.
Questions
Before you ask us
Do I need a lid to stack collared pallets?
Yes. Without a lid, the load above sits directly on the product below and on the open collar edge. A lid transfers that weight into the collar walls and down through the corners.
Plywood or solid board lids?
Plywood for light, evenly distributed loads and lowest cost. Solid board for repeated handling and returnable systems, because it lasts longer and can be repaired board by board.
What is a top cap?
An inverted shallow pallet used instead of a flat lid. It has structural members that spread concentrated load across the collar walls, which a flat sheet cannot do.
Can lids be made to a custom footprint?
Yes. Lids and top caps are cut to whatever footprint you specify, including alongside a custom pallet build.
Can we stack three collared units high?
With a lid or top cap on each level and reasonably even weight distribution, often yes. Beyond two high, stability during handling becomes the limiting factor rather than the lid.
Are lids worth it for one-way shipping?
Rarely on their own, unless the load must be stacked in transit. Their main value is warehouse cube, which is a storage benefit rather than a shipping one.
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