We have a couple options of bug screens available, the Classic Accessories Toy Hauler Screen, # 052963799941 for steel toy haulers and # 052963799842 for fiberglass or aluminum that measures measures 90-1/2" tall x 98-1/2" wide. There really is not a minimum size this product can't be adjusted to, as long as its within reason, these are a cut to size system for custom fit. view full answer...