State Trailer RV & Outdoor Supply Idaho Falls Idaho is your headquarters for RV, trailer, and camping supplies. We stock more than 15,000 RV supplies, trailer supplies, and camping supplies, and since 1926. Besides this store, we have four additional stores in Ogden Utah, Salt Lake City, Mesa AZ, and Peoria AZ. We also install many of the RV and trailer supplies we sell. We offer RV coach service and repair in Idaho Falls, Ogden, Salt Lake, Peoria, Mesa AZ. Not only do we offer more selection than anyone else; we do all we can to service and solve your RV & Trailer needs before a problem occurs. Our customer service specialists are here to help you with your trailer and RV supplies and installation needs.