heres the cage i built. its not a very good for arboreal. and its too big for a ball python. its 72" x 20" (6' x 1.6')

its actaully upside down to glue the top track on. ive got 1/4 sliding glass that i had to special order for doors. the two small pieces of wood that the tracks are on are 3.5" wide. i used a polyurethane glue to glue the tracks on. it took several hours to dry, but its insanely strong. there is tagboard (is that what its called) for the back. and a support in the middle. if theres no support in the middle the top bends alot, to the point where the glass wont slide easliy. if you must use duct tape, you can cover the bottom with it so when the snake poops all the liquid doesnt soak into the wood. i used some kind of sealan on the bottom but i dont think i used enough. its particle board on the bottom and it just soaked it right up. the glue worked to glue handles on the glass too.