How do you calculate cartons per pallet?

Multiply cartons per layer by layers per pallet for the gross, then multiply by your fill rate and stacking efficiency. Here 8 x 6 = 48 gross, and at 100% fill and 96% efficiency the net is 46.08 cartons.

Why is net cartons per pallet less than the gross?

Because interlocking and pinwheel patterns leave voids that reduce usable space. In this example the 96% pattern efficiency drops the gross of 48 down by about 1.92 cartons to a net of 46.08.

What is a good stacking pattern efficiency?

Column stacks can approach 100% but are less stable; interlocked patterns typically run 90-97%. The 96% used here is a realistic figure for a stable, brick-style interlock.

Should I round net cartons per pallet up or down?

Always down. A net of 46.08 means 46 cartons will physically load; the 0.08 is unusable space you cannot fill with a partial carton.

What's the difference between layer fill rate and pattern efficiency?

Layer fill rate is how completely each single layer is populated with cartons; pattern efficiency captures losses from the overall interlock and pinwheel geometry across the stack.

How does cartons per pallet affect freight cost?

More cartons per pallet spreads fixed pallet and handling costs over more units, lowering cost per carton. Undercounting net capacity leads to over-ordering pallets and paying for empty air on the truck.

Packaging & Logistics calculator

Cartons Per Pallet Calculator

Cartons Per Pallet estimates how many cartons a pallet actually holds once you account for how well each layer fills and how efficiently your stacking pattern uses the deck. Logistics planners, warehouse designers, and shipping coordinators use it to quote freight, plan storage slots, and set truck-load counts. The gross count from a simple layers-times-cartons multiply almost always overstates reality, because interlocked or pinwheel patterns leave gaps. This tool separates the theoretical maximum from the net you can realistically expect to load and store.

What this calculator does

Estimate how many cartons fit on a pallet from cartons per layer, layers high, and how completely each layer and pattern fills.
Use it to plan pallet patterns, set ti-hi (cartons per layer by layers high), and confirm cartons per pallet before you build loads.
It multiplies cartons per layer by layers per pallet for a gross count, then discounts by layer fill rate and stacking-pattern efficiency to give a realistic net cartons per pallet.

Formula used

Gross cartons per pallet = cartons per layer × layers per pallet
Net cartons per pallet = gross × layer fill rate × stacking pattern efficiency

Inputs explained

Cartons per layer:
Layers per pallet:
Layer fill rate:
Stacking pattern efficiency:

How to use the result

Use it when planning pallet configurations, quoting freight by the pallet, or sizing warehouse rack positions for a given SKU.
Fill and efficiency percentages are estimates from your pattern; the true count is an integer, so round the net down when committing to a load or storage plan.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
On-highway diesel averages $6.20 per gallon this week (EIA), trending up over recent periods. Truck tonnage is down 0.4% year over year (BTS via FRED).
The producer price index for paper (not a paperboard or container index) stands at 282.266 (BLS, Aug 2026), up 10% from a year earlier. Quotes priced off last quarter's material cost miss this move.

Common questions

How do you calculate cartons per pallet? Multiply cartons per layer by layers per pallet for the gross, then multiply by your fill rate and stacking efficiency. Here 8 x 6 = 48 gross, and at 100% fill and 96% efficiency the net is 46.08 cartons.
Why is net cartons per pallet less than the gross? Because interlocking and pinwheel patterns leave voids that reduce usable space. In this example the 96% pattern efficiency drops the gross of 48 down by about 1.92 cartons to a net of 46.08.
What is a good stacking pattern efficiency? Column stacks can approach 100% but are less stable; interlocked patterns typically run 90-97%. The 96% used here is a realistic figure for a stable, brick-style interlock.
Should I round net cartons per pallet up or down? Always down. A net of 46.08 means 46 cartons will physically load; the 0.08 is unusable space you cannot fill with a partial carton.
What's the difference between layer fill rate and pattern efficiency? Layer fill rate is how completely each single layer is populated with cartons; pattern efficiency captures losses from the overall interlock and pinwheel geometry across the stack.
How does cartons per pallet affect freight cost? More cartons per pallet spreads fixed pallet and handling costs over more units, lowering cost per carton. Undercounting net capacity leads to over-ordering pallets and paying for empty air on the truck.

Last reviewed 2026-07-02.