[header] How to build a reptile cage [title] Consider the behavior of your reptile. [step] Think about the type of reptile you have. Does your reptile need water? What type of light does your reptile need? Is your reptile young? How large is the reptile expected to grow? Will the cage be kept inside or outside? [substeps] The cage should resemble the reptile's natural habitat as much as possible. 
For example, a chameleon would need a tube cage. Turtles, frogs, and some snakes will need water in the tank.