You may have seen empty wood pallets accumulating outside of warehouses or in the alley behind small businesses and wondered what happens to them. Although many people believe that these pallets mostly go to landfills, this has not been the case for several years.
With the emergence of an efficient pallet recycling industry, more old wood pallets are being recovered for repair and reuse or finally for transformation into wood fiber products. Such recycled wood products include landscaping mulch and fuel. The increasing popularity of using pallets for craft projects is also providing an outlet for a small but increasingly notable proportion of them.
What Is Most Likely to Be Recycled?
If one thing is sure, pallets most likely to be recycled are ones of the most popular sizes, such as 48x40-inch or other conventional pallet footprints in North America, or 800x1200mm or 1200x1000mm in Europe. Also of note, pallet recovery is most likely in locations where there are greater accumulations. The value proposition for pallet recyclers is, of course, more attractive where there are larger quantities of the more valuable popular sizes.
Following this train of thought, pallets are less likely to be recovered where there are fewer generated and of less popular sizes. At building job sites, for example, pallet recovery has been slower to evolve, but even for these situations, pallet recycling is becoming increasingly popular in conjunction with an increasing emphasis on sustainable construction practices. Even where only small amounts of empty pallets are found, pallet collectors, operating with a small truck or trailer, often collect them for resale.
The U.S. Wood Pallet Picture
When it comes to the U.S. pallet system, here are some of the key pallet statistics, courtesy of U.S. Forest Service:
- Total pallets in service are probably over 2 billion
- There were 416 million new pallets manufactured in 2011
- There were 474 million used pallets recovered in 2011
- Of those pallets recovered, 326 million of them were again sold as pallets
- The other 148 million pallets were recycled to other products
- Millions of old pallets still end up in landfills every year, however, about one-quarter of these are recovered for recycling at landfills
- Roughly 43 out of every 100 pallets purchased are recovered pallets
Growth of Pallet Recovery
The pallet recycling industry has become very efficient in diverting pallets away from landfills. In 1992, only 51 million pallets were recovered. By 1995, however, that number had shot up to 143 million. By 1999, that number had reached 223 million, and by 2006, the total amount of pallets recovered was around 357 million units. In 2011, 474 million pallets were recovered.
Regarding pallet recovery by region, the South led the way with 204 million pallet cores, another term for recovered pallets, recovered in 2011, followed by the Midwest with 148 million. In the West, 74 million pallet cores were recovered, and 61 million in the Northeast.
What Happens to Recovered Pallets?
According to U.S. Forest Service figures, around 68.5% of recovered pallets are repaired for reuse, with another 11.9% reusable without repair. Another 16.2% are dismantled to be used as replacement lumber or in the construction of new pallets using recycled lumber, or a combination of new and recycled lumber. Another 3.1% are chipped or ground, for a variety of applications, and 0.3% end up being used for "other" purposes.
Regarding that 3.1 % of recovered pallets that are ground or chipped, around 44% is used for colored landscaping mulch, 11% for uncolored landscaping mulch, and 10% for animal bedding. Another 30% is used for waste to energy products such as boiler fuel or wood pellets, and the final 6% goes to unidentified other purposes.
Based on current trends in logistics towards reusable pallet systems as well as for more efficient pallet recycling, it can be anticipated that pallet recovery will continue to improve.