Wood pallets have been used by companies for years to both store and transport their products. The reason for this is that they are surprisingly sturdy and reusable. If they ever break or fall apart, the wood that they are made of can be repurposed for fireplace material, or it can be built in to new pallets or other types of homemade projects. Some pallets are made of plastic, but wooden types are preferred because of a unique property that they have. Read on to find out more about this surprising secret.