For ball pythons, surface area of the bottom of the tub is much more important than height. Balls are not naturally arboreal snakes. They will generally spend all their time in their hides. All of my ball pythons are kept in rack systems, so they only get 6.5 inches of height. Adults are kept in 41qt sterilite tubs. The dimensions of a 41qt are 34 7/8" L x 16 5/8" W x 6 1/8" H.
Kevin Johnson
0.2 Normal BP -- 0.1 Pastel BP -- 0.1 Spider BP -- 0.1 Het Red Axanthic BP -- 0.1 Ghost dinker
2.1 Het Pied BP
1.0 Lesser Bee BP -- 1.0 Pastel Yellowbelly BP -- 1.0 Mojave BP -- 1.0 Black Pastel BP -- 1.0 Cinny (poss het ghost) -- 1.0 Champagne