The FIREloc™ hazardous material storage building manufactured by U.S. Chemical Storage is the perfect choice for storage of flammables 10 to 50 feet from other structures. The FIREloc™ wall construction consists of multiple layers of UL classified fire-resistant wallboard encased within heavy gauge steel. Many sizes and options are available.U.S. Chemical Storage, www.uschemicalstorage.com, (866) 352-0467.