Tank Building 1st time

[-torch-]

Hey i was just wondering if you guys could help me out with building a custom tank for my bearded dragon Blaze whos about 2months old currently. So i have like plenty of time to build it due to hes still tiny n thats way to much room for his size right now lol.

From what i know ive designed it to be 4feet long by 2feet wide by 2feet high.
and the front is going to be a glass door that swings down for easy access. and the top would be a screen top like a normal glass tank has just so its good ventalation n lights can be hooked up easier. since i have basic wood working skills.

The problem is im not sure what materials to use for the tank. Like plywood, malimine (spelling??), or what. I've read up on it but i want sumthing thats good quality wood n will do well with temps, and what not. But also it has to be kinda cheap to buy.

thanks for the help.