Don't worry; you don't have to compromise on style just . These wall assembly files are used for planning and estimation purposes for many UL wall types, such as fire-rated wall assemblies. Our site registration and log in will be unavailable from 8 p.m. CST on Friday, March 3 through 3 p.m. CST on Sunday, March 5. "telephone": "+1-888-990-3388", This treated wood will char but not oxidize, dramatically reducing the progress and spread of fire in buildings.