For the Crossroads Hampton Destination travel trailer that is 38 feet in length we have the Adco AquaShed RV storage cover part # 290-52277 that is a confirmed fit and would work well. view full answer...
The closest thing we have to the dimensions you provided is the Adco SFS AquaShed RV Cover for Toy Hauler Travel Trailer item # 290-52277. This fits over the box portion of your travel trailer not the tongue or below the frame and is 40.5' long x 8.8' wide x 12' tall. view full answer...