Field note · 11 min
Cube out or weigh out: decide before you start loading.
- 53′ floor positions
- 26
- Double stacked
- Up to 52
- Flattened
- 550 – 700 boxes
Have us plan the load
Send the box, the product weight and the lane. We will tell you the configuration and whether flattening changes the economics.
The answer, first
Below roughly 45 lb per cubic foot you will cube out — the trailer fills before it gets heavy — and your job is to maximise how much box goes in. Above that you will weigh out, and your job is to use shallower boxes and stop trying to fill them.
A 53-foot dry van gives you 26 floor positions at 48 × 40, a legal payload around 44,000 lb, and roughly 110 inches of interior height to play with. Those three numbers set every decision below.
Configuration options
| Configuration | Boxes | Best for | Requirement | Risk |
|---|---|---|---|---|
| Floor-loaded, single layer | 26 | Heavy product, weigh-out lanes | None beyond alignment | Wasted height if product is light |
| Double stacked | 52 | Light to medium product, cube-out lanes | 5-wall, 2A/3A, aligned, under ≈1,400 lb | Collapse if misaligned or damp |
| Palletised single | 26 pallets | Mixed loads, easy unloading | Matched pallets, no overhang | Pallet weight eats payload |
| Flattened and banded | 550 – 700 | Empty box delivery and collection | Banding, wrap, stable stacks | Band height limits — nine bands max |
| Mixed: flattened plus assembled | Varies | Combined delivery and collection | Load plan agreed in advance | Complexity on the dock |
The five rules of double stacking
- Align corner to corner. Compression load travels down the vertical edges. Two inches of offset costs you roughly a third of the bottom box's capacity.
- Derate for the conditions. Apply your humidity and storage multipliers before deciding, not afterwards. A stack that is fine in February may not be in July.
- Heaviest on the bottom, always. Obvious, routinely ignored when loading is rushed at the end of a shift.
- Cap the bottom box. A telescoping cap spreads the point loads that a pallet's deck boards otherwise concentrate.
- Band and brace. Void space lets a load walk. Dunnage bags between stacks cost a few dollars and prevent almost every shifted-load call we hear about.
Weight, and where it actually binds
A 53-foot van with a typical tractor leaves roughly 44,000 to 45,000 lb of legal payload, but the binding constraint is often axle distribution rather than gross weight. Bulk boxes are easy to distribute badly: twenty-six identical positions invite loading front to back in order, which concentrates weight over the drives.
Practical rule: build the load in thirds and check the balance at each third, rather than discovering it at the scale house.
- 01
Work out the constraint
Density above 45 lb/ft³ means you will weigh out. Below it, you will cube out. Everything else follows from this single number.
- 02
Pick the box to suit
Weigh-out lanes want shallow boxes and full floors. Cube-out lanes want tall boxes and double stacking.
- 03
Plan the stack before the first pallet
Derate for humidity and grade, confirm the stacking figure, then decide single or double. Do not decide this on the dock.
- 04
Brace and photograph
Dunnage the voids, band what needs banding, and photograph the finished load at the door. It settles every delivery dispute that follows.
Flattened loads: the nine-band rule
Flattened boxes are banded in lots of twenty to twenty-five and stacked. We stop at nine bands high, because in our own inbound grading the tenth band is where crush damage starts appearing at the bottom of the stack. It is not a legal limit, it is an empirical one — and it costs less to respect than to relearn.
Combining collection with delivery
The most efficient movement in this trade is a truck that arrives with graded stock and leaves with empties. It halves the freight on both legs and roughly halves the emissions per box moved. It needs a load plan agreed in advance and a dock that can handle both, which is why it usually starts as a conversation rather than a booking.
Questions
Loading, answered.
How many gaylords fit on a 53 foot trailer?
When can I double stack?
What is the most common loading mistake?
Reference
Load plans for eight common situations.
Worked for a 53-foot dry van with roughly 44,000 lb of legal payload. Find the row closest to yours.
| Material | Box | Configuration | Units | Load weight | Binding limit |
|---|---|---|---|---|---|
| Resin pellets | 48 × 40 × 36 5-wall | Floor, single | 26 | 36,000 lb | Weight, comfortably legal |
| Regrind | 48 × 40 × 36 5-wall | Floor, single | 26 | 24,000 lb | Cube |
| Baled film | 48 × 40 × 48 5-wall | Double stacked | 52 | 43,900 lb | Both, simultaneously |
| Textiles | 48 × 40 × 48 5-wall | Double stacked | 52 | 27,000 lb | Cube |
| Metal turnings | 48 × 40 × 24 triple | Floor, single | 26 | 43,500 lb | Weight, near the limit |
| Glass cullet | 48 × 40 × 20 triple | Floor, single | 26 | 42,000 lb | Weight |
| Empty boxes, assembled | Any | Floor, single | 26 | 600 lb | Cube, absurdly |
| Empty boxes, flattened | 5-wall | Banded, 9 high | 690 | 16,600 lb | Cube |
On the dock
A loading checklist worth printing.
Twelve items. Every one of them has, at some point, been the reason a load arrived damaged or a trailer had to be rebuilt.
- Decide cube-out or weigh-out before the first pallet moves
- Heaviest on the bottom, always
- Align stacked boxes corner to corner, not approximately
- Derate for humidity and storage before deciding to double stack
- Cap the bottom box where anything will sit on it
- Check pallets for overhang before loading, not after
- Build in thirds and check axle balance at each
- Dunnage the voids — loads walk, and walking loads crush
- Band flattened stock at nine bands maximum
- Do not mix flattened and assembled without a plan
- Photograph the finished load at the door
- Record the count on the paperwork before the doors close
Send the lane and we will plan the load.
Box, product weight, origin and destination. You will get a configuration, a count and an honest view on whether the lane works.