How many 400 × 350 × 300 mm cartons fit on a Standard pallet?
18 cartons of 400 × 350 × 300 mm fit on a Standard pallet (1200 × 1000 mm): 6 cartons per layer, 3 layers within a 1200 mm stack height including the pallet.
Per layer
6
Layers
3
Total cartons
18
Stack height
1050 mm
Deck used
70%
Best pattern: Split-Row Interlock
Cartons sit in mixed orientations, the pattern combines both directions. Most rows face one way and the remaining strip is turned 90°, so layers can be mirrored and lock together like brickwork.
Why this pattern here: Straight rows of 400 × 350 mm leave a strip of deck unused, and that strip is wide enough for cartons turned 90°. Splitting the layer this way fits 6 per layer and lets alternating layers mirror and interlock.
Pattern comparison
| Pattern | Cartons per layer |
|---|---|
| Grid | 6 |
| Split-Row InterlockBest | 6 |
| Pinwheel | 4 |
Several layouts tie at 6 of these 400 × 350 mm cartons per layer (grid 6, split-row 6, pinwheel 4). The tool selects the Split-Row Interlock pattern because when counts are equal an interlocking layout beats a plain grid on load stability. 3 layers reach 1050 mm including the 150 mm pallet deck, at 70% of the deck footprint.
Prefer stability? The pinwheel alternative
The maximum-load layout above leaves 1 of its 6 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 pinwheel fits 4 of these 400 × 350 mm cartons per layer, 2 fewer, and every carton rests across at least two cartons below, so the layers interlock like brickwork. 12 cartons per pallet at 1050 mm, using 46.7% of the deck.
These figures assume the height limit binds at 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 400 × 350 × 300 mm on the Standard pallet prefilled.
Same carton on other pallets
Nearby carton sizes on the Standard pallet
- 400 × 300 × 300 mm (27 cartons)
- 400 × 400 × 300 mm (18 cartons)
- 450 × 350 × 300 mm (18 cartons)
- 400 × 300 × 250 mm (36 cartons)
- 350 × 350 × 350 mm (18 cartons)
- 430 × 310 × 250 mm (32 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 25, 2026