How many 18 × 18 × 24 in cartons fit on a US 48×40 pallet?
4 cartons of 18 × 18 × 24 in (457 × 457 × 610 mm) fit on a US 48×40 pallet, 48 × 40 in (1219 × 1016 mm): 4 cartons per layer, 1 layers within a 47.2 in (1200 mm) stack height including the pallet.
Per layer
4
Layers
1
Total cartons
4
Stack height
29.7 in (756 mm)
Deck used
67.5%
Best pattern: Grid
Cartons sit lengthwise, long side along the pallet's length. All cartons face the same way in straight rows and columns, like a spreadsheet.
Why this pattern here: 18 and 18 in divide the 48 × 40 in (1219 × 1016 mm) deck cleanly enough that plain rows already fit 4 per layer, so no rotated or interlocked arrangement can beat the simple grid here.
Pattern comparison
| Pattern | Cartons per layer |
|---|---|
| GridBest | 4 |
| Split-Row Interlock | Does not fit |
| Pinwheel | Does not fit |
A plain grid is the honest winner for the 18 × 18 in footprint: 4 cartons per layer, against no feasible split-row and no feasible pinwheel arrangement. The rows cover 67.5% of the deck footprint, and 1 layers bring the stack to 29.7 in (756 mm) including the 5.7 in (146 mm) pallet deck. One caveat: a grid has no interlock of its own, its layers sit in independent columns held by wrap and friction.
Prefer stability? The offset rows alternative
The maximum-load layout above leaves 4 of its 4 cartons per layer stacked in unbonded columns, a carton bonded to only one below rides the stack as a free tower held by wrap alone. If stability matters more than count: a offset rows fits 4 of these 18 × 18 in cartons per layer, 0 fewer, and all but 2 cartons per layer rest across at least two cartons below and interlock like brickwork. 4 cartons per pallet at 29.7 in (756 mm), using 67.5% of the deck.
These figures assume the height limit binds at 47.2 in (1200 mm). Weight is not shown here because it depends on the actual carton weight, the interactive calculator also enforces a max payload per pallet.
Opens the free tool with 18 × 18 × 24 in on the US 48×40 pallet prefilled.
Nearby carton sizes on the US 48×40 pallet
- 18 × 18 × 18 in (8 cartons)
- 20 × 20 × 20 in (8 cartons)
- 22 × 22 × 22 in (2 cartons)
- 22 × 18 × 18 in (8 cartons)
- 24 × 24 × 24 in (1 cartons)
- 24 × 18 × 18 in (6 cartons)
Computed by the PalletTool engine, the same deterministic solver behind the free calculator. Published by Eastwest Medico ApS, Copenhagen, a company that loads real pallets for humanitarian shipments. Not AI-written text, every number on this page comes from the computation above.
Last computed: July 26, 2026