01What it is
Four boards, hinged at the corners, sized to drop onto a standard pallet. Put one on and you have an open-topped box. Put a second on and the box is twice as deep. Add a top cap and it is closed. When it comes back, the hinges let it collapse flat to about two inches.
That is the whole product. It has existed for decades, it is standard equipment across much of Europe, and in North America it remains oddly under-used.
02The comparison that matters
| Measure | Wooden crate | Collar system |
|---|---|---|
| Unit cost | $85–$220 | $9–$14 per collar + base pallet |
| Reuses | 5–15 | 40–60 |
| Return cube per unit | Full volume | ~10% of full volume |
| Access to contents | Open the lid or a side | Remove collars from the top down |
| Repairability | Panel replacement | Single board or hinge replacement |
| Height flexibility | Fixed | One to four collars |
| Weather resistance | Good (plywood) | Poor — open slats |
| Dust exclusion | Good | None |
The two rows where crates win — weather and dust — are the two conditions that should decide against a collar. Everything else favours the collar, sometimes by a factor of ten.
03Where collars work
- Closed loops between fixed sites. The return-freight saving compounds every cycle.
- Loose or bagged product that needs containment but not protection.
- Mid-stack access. Remove the top collar and you are at tier three without unpacking tiers four and five.
- Variable load heights. One collar for a short run, three for a tall one, with no separate SKUs.
- Indoor storage and handling, where weather is not a factor.
04Where they do not
- Outdoor or weather-exposed transit. Open slats do nothing about rain.
- Dust-sensitive goods. Instruments, electronics, anything that needs sealing. Use a cleated plywood box.
- One-way export. You will not get the collar back, so the reuse economics never arrive.
- Very heavy or awkward single items. A machine bolted to a skid does not want a frame around it.
- Mismatched heights. 200 mm and 8-inch collars look identical and stack unevenly. Standardise on one.
05Running a collar programme
Treat collars as assets, not consumables. They are worth tracking, they are worth repairing, and they walk in exactly the same way pallets do.
- Count them in and out alongside the pallets — see the two-week count.
- Repair rather than replace. A damaged board or hinge is a five-minute job.
- Standardise on one height across the operation.
- Store them folded and dry. Wet hinges rust and wet boards warp.
- Match them to a square base pallet grade and hold that grade.
