- Size listed
- 36 x 36 x 36 in
- Use
- Dangerous goods under UN packaging rules
- A used box is
- Not UN-rated unless certified
What the rating means
Shipping hazardous waste or dangerous goods in bulk boxes is tightly regulated. A UN-rated corrugated hazmat gaylord is one made and certified to a UN specification. One listing we saw is a 36 x 36 x 36 in box. The rating belongs to the box as it was tested and marked, with its closure, liner and load. It is not a general property of corrugated.
A used gaylord is not UN-rated unless certified, and a certified box carries its UN marking printed on the box itself. A used, uncertified box is not listed as UN-rated, and no used box is described here as fit for dangerous goods. If your material is regulated, the rules for your material decide the packaging, not our grade sheet.
What a used box can do
- Carry non-regulated parts, scrap, film and textiles, if it is dry and the bottom is sound.
- Hold resin and regrind with a poly liner, subject to your own process rules.
- Serve as a backup pack for finished parts moving by ordinary freight.
What it cannot do
- Ship dangerous goods, or hazardous waste, in a bulk box that is not certified for it.
- Stand in for a certified box because the printing or the size looks the same.
- Count as food-grade only because it is clean. See food, hazmat and used gaylords.
If you are not sure whether your material is regulated, ask the person who signs your shipping papers. If you need a certified box, ask the box maker or a packaging distributor for one marked for your material. Then, if you have used gaylords from a certified program to sell, write the marking and the history in the request.
Facts and figures
- ASTM D5168 covers the fabrication and closure of triple-wall corrugated containers. (Wikipedia, Bulk box, retrieved 2026-11-10.)
- The Cary Company lists gaylords in single wall 200#/ECT-32, double wall 275#/ECT-48 and triple wall 1100#/ECT-90 across sizes from 36 x 36 x 36 to 48 x 40 x 36. (thecarycompany.com, retrieved 2026-11-10.)
- A bulk box is also called a bulk bin, skid box, pallet box, bin box, gaylord or octabin, and is usually double-wall or triple-wall corrugated fiberboard. (Wikipedia, Bulk box, retrieved 2026-11-10.)
Terms
- single trip: Used once, the common description for top-grade used gaylords.
- poly liner: A plastic bag liner that keeps resin, powder or food from touching the board.
- wall count: How many layers of corrugated board form the side walls, from 2 to 5; more walls, more stacking strength.
- burst test (#): Mullen burst rating in pounds, written as 200#, 275# or 1,100# TW; an older way to rate board.
- ECT: Edge crush test, a rating of how much top load a board's edge carries; a stacking-strength number.
What to ask before sending a regulated product
- Is the product regulated, and under what class?
- Does the carrier demand marked, tested packaging?
- Who certifies that the closure matches the tested design?