Custom Snake Cages What Materials To Make Large Reptile Cages?

What materials to make large reptile cages? - custom snake cages

Since it is very difficult to find large cages of reptiles in my area, I decided to try to sell it and pens for large animals such as monitors Savannah, dragons and snakes even more water. What materials do you suggest I use to ensure safety, the safety for the animals, and other factors that are involved in the possession of reptiles.
Ah yes, a limited amount of things you find in your local hardware store to maintain?
Since I will build custom cages do not need these actions.