*REMINDER as people start building coops for spring. Our vet has seen many chickens DIE from living in coops made of pallet wood (due to the toxic mold & fungus spores deep inside the wood) Pallet coops may seem like a good idea, (free wood, recycling) but PLEASE don't risk YOUR health or that of your hens! There are many articles on finding "safe" pallets, or how to clean them.
Before & After: Olga Brings Her Passion for Pallets Home
When most people see wood pallets they think only of garbage or maybe even kindling. When Olga saw the pallet pictured above she saw possibility. She lugged the pallet home and set about finding a way to use it. After it sat in a corner for a month, Olga finally gave the pallet new life.
Wooden shipping pallets Please remember MOST crates are treated with toxins. this link explains what you want to look for and what to stay away from. http://www.ehow.com/facts_7632551_wood-pallets-toxic-firewood.html
How to tell if a Wood Pallet is safe for crafting. After seeing all of these pallet upcycle ideas I think this is a great reference to have. Some Pallets are treated with methyl bromide, a toxic pesticide.