Wood is a great choice for cages. I made my own bird cages for years, my snakes.....glass. But I made roughly a 100 gallon habitat for 25$. Simply pine and fine chicken wire mesh. Now some here may say they dont like the metal and the chams nails may brake...never happened to me. But my enclosure is so big they dont want to hang on the metal...they hang on the plants as they should. I own a pair of jacksons...kept together, and the large size keeps them from beefing it out. Anyway wood is good. I advise you stain and poly clear the wood, it keeps out moisture and mildew from building and looks good too. I just took one look at the screen cages they sell and knew they would not hold up. I used a sheet of vinyl plastic..abs I guess, on the bottom as all sides are metal mesh for drainage and airflow. Like I said for the price it cost to buy a small cage...I spent my time instead and built a better one for less. Im not downgrading any set up, do what ever your budget will allow, and decide what your needs will be. I will be breeding my chams sooo I needed a large enclosure so they can have a living space that will be stressless.good luck