Aluminum freezer spaces are rigid in design and are great conductors of cold, warm, and hot temperatures. They are light weight and very strong. They are effective in permitting air flow to reach the loads that rest on them and they are easy to clean. Aluminum freezer spacers do not have splinters or rough edges like wood spacers and also are fire proof. Although they are the most expensive of the freezer spacers they are longest lasting and therefore provide in the long term a great return on investment. By the end of its functional lifespan, aluminum freezer spacers can be recycled for cash.