How to stack pallets outdoors so they are still worth something

1. Stack square, and not too high

A square stack sheds water. A leaning one holds it in every horizontal gap between deck boards, and those gaps are where rot starts.

Square stacks are also safer to break down and faster to load, which matters because loading time is a real cost that shows up in what a collection is worth.

On height: high enough to use the ground efficiently, low enough to stay stable in Ohio wind and to stay within whatever your fire code allows for outdoor idle storage. See the fire engineer's view of your pallet stack.

2. Get it off the ground

The bottom pallets in a pile sitting on bare ground are almost always the first write-off. They wick moisture upward continuously, so they are the wettest part of the stack even in dry weather.

Put the stack on runners, on a hard standing, or on a couple of sacrificial pallets laid flat. The sacrificial option costs nothing — you are already going to lose those two — and it protects everything above them.

On mud or gravel this single measure changes the condition of a whole pile over a season.

3. Cover it properly or not at all

Half-covering is close to useless and occasionally worse than nothing. A tarp that covers the top but not the sides lets water run down inside the stack and then prevents it drying, which is exactly the condition mold wants.

If you are going to tarp, cover the top and the upper sides, secure it against wind, and leave the bottom open so air moves through.

A roof, an open-sided shelter or an empty trailer is far better. If you have a spare trailer standing, it is the cheapest pallet store you will ever have.

4. Sort while you stack

This is the one that most directly changes the price.

• 48×40 GMA in its own stack. It is the highest-value footprint and mixing it into a pile of odd sizes drags down the assessment of the whole load.

• Broken pallets separately. Mixed in, they make the load look worse than it is.

• Odd sizes together. They are worth something, usually for lumber recovery, but they are priced differently.

• Anything wet or contaminated out of the way entirely. It has no outlet and it contaminates the assessment — see what zero landfill actually requires.

Sorting as you stack costs nothing. Sorting a mixed pile afterwards costs an afternoon.

5. Leave room for the truck

Access is not an afterthought, it is part of the price. A forklift needs to reach the stack, and a 53-foot trailer needs somewhere to turn and to park while loading.

A stack wedged against a fence behind three parked trailers takes twice as long to load, and that time is charged somewhere whether or not it appears as a line item.

The best answer is not to have a stack at all. A scheduled collection matched to your generation rate means the pile never reaches a size anybody has to manage — which solves the fire question, the pest question, the degradation question and the space question simultaneously.