Pallet reuse: what it is and what it is worth in emissions

What counts as reuse

A pallet is reused when it carries another load in the same form: same deck boards, same stringers or blocks, perhaps sorted and graded but not taken apart. Common routes are a recycler or reuse company buying sorted cores, a supplier taking its own pallets back on the next delivery, and a facility reusing inbound pallets for its own outbound freight.

Pooled pallets (CHEP, PECO, iGPS) are reused too, but by their owner. A facility that holds them is not the one deciding their fate; it returns them. See pooled pallet return.

Which pallets qualify

• Common footprints in good condition. A recycler can resell a standard size far more easily than a custom one.
• No broken or missing boards, no protruding nails, no contamination from chemicals, food spills or oils.
• Not marked as someone else's property. A marked pallet belongs to its owner, and several states regulate who may buy or hold one; see marked pallet laws.

How WARM values it

WARM models recovered dimensional lumber as reused, under its recycling pathway, because that is what usually happens to it. The net factor is −1.66 MTCO2E per short ton (EPA WARM v16, Exhibit 12-3). Exhibit 12-9 splits it into −0.10 for avoided process and transport energy and −1.56 for forest carbon storage: wood that is not cut because a reused pallet replaced a new one.

Compared with landfilling (−0.92 national average), moving one short ton from landfill to reuse changes the WARM result by −0.74 MTCO2E. That number is an avoided-emissions estimate. It belongs in a separate disclosure, not in a scope 3 inventory; see avoided emissions.

Limits

Each reuse cycle wears the pallet. The USDA Forest Products Laboratory LCA modelled service lives from 10 trips for a light-duty stringer design to 66 for a heavy-duty block design (FPL-RP-707, Table 2), so reuse delays the other pathways rather than replacing them.