Pallet Load Calculator

Plan a full pallet load, cartons per layer, layers, total units and stack height, and see it build in 3D.

Total boxes on the pallet
40
8
Per layer (TI)
5
Layers (HI)
67%
Floor used
65.6 in
Stack height
Load diagram
Top view, 8 per layerSide, 5 layers
boxes / items pallet deckSingle-orientation packing, real pinwheel patterns may fit a few more.

How the pallet load calculator works

Where a simple box count stops at "how many fit," this planner builds the whole load: cartons per layer, number of layers, total units, and the finished stack height you'll hand to a forklift. The default footprint is the GMA 48 × 40 in pallet.

The sequence is:

  1. Cartons per layer, the better of the two floor orientations:

- floor(48 / L) × floor(40 / W) vs floor(48 / W) × floor(40 / L)

  1. Layers, floor((max height − 5.6 in deck) / cartonH)
  2. Total units = cartons per layer × layers
  3. Load height = layers × cartonH + 5.6 in deck

Worked example (page defaults)

A 16 × 12 × 10 in carton on the GMA pallet, capped at a 60 in total height:

  • Orientation A: floor(48/16) × floor(40/12) = 3 × 3 = 9 per layer
  • Orientation B: floor(48/12) × floor(40/16) = 4 × 2 = 8 per layer
  • Cartons per layer = 9
  • Cargo height = 60 − 5.6 ≈ 54.4 in → floor(54.4 / 10) = 5 layers
  • Total = 9 × 5 = 45 cartons
  • Load height = 5 × 10 + 5.6 = 55.6 in

The 3D preview stacks those 45 cartons layer by layer so you can see the top tier and any gap left under your height cap.

GMA pallet reference

SpecValue
Footprint48 × 40 in (1219 × 1016 mm)
Deck height~5.6 in
Own weight~37 lb
Dynamic load rating~2,800 lb

What it does and doesn't model

Like the rest of this family, it uses a single orientation per pallet (column stacking) and does not interlock layers or mix carton sizes, for a mixed shipment, total the volume with the CBM calculator instead. It plans geometry, not weight: once you know the unit count, check it against the pallet's load rating in the pallet weight calculator, or isolate just the layer pattern in the TI-HI calculator. When the loaded pallet is ready to ship, the container load calculator tells you how many of them fit in a 20ft or 40ft box.

Frequently asked questions

What is the difference between this and the pallet calculator?
The pallet calculator focuses on the total box count. The load calculator foregrounds the full build plan, cartons per layer, number of layers, total units and the finished load height, so you can plan and document a complete pallet.
How many 16 × 12 × 10 in cartons fit on a 48 × 40 pallet?
Nine per layer in the best orientation. Capped at a 60 in total height that is 5 layers, for 45 cartons and a load height of about 55.6 in.
How is load height calculated?
Layers × carton height, plus the pallet deck (about 5.6 in on a GMA pallet). With 5 layers of 10 in cartons that is 5 × 10 + 5.6 = 55.6 in.
Can I plan a load with different carton sizes?
This planner assumes one carton size and orientation across the pallet. For a mixed-carton shipment, add each size and quantity in the CBM calculator to get total volume.