I know Breeders that keep 15 foot Burms in a tote big enough for them to coil.. Then theres people like myself who have a 8' display for him...
My Balls have a 4' enclosure. They love to stretch and climb. Some people have baby Balls that are stressed and their snake needs a smaller enclosure to help them feel safe. Ive never had that problem in 29 years but I also have Hides and PVC they climb to help take up room. My temps are good ect.. So I never have had a problem thank god giving them a nice big enclosure to enjoy.