I have a bearded dragon now that is about to be a year old he is in a 40 gallon tank but since he is getting so big I want to get him something bigger. Probably around a 55-60 gallon tank. I'm looking online everywhere and going to local pet shops and all I'm finding is 40 or smaller tanks.. Has anyone ever gotten a bigger tank and reccomend somewhere I could get it from?
There are several places online that make custom cages. KMDragons and Beeger Boxes come to mind but there are others. I agree that the most cost effective way of doing it is to make your own. This is a walkthrough of a popular model to give you an idea of what's involved. https://beardies.dreamwidth.org/2145.html
I just picked up a 67 gallon from petsmart marked down from $250 to $90 but it might not be quite what your looking for. It has the same footprint as a 40 gallon breeder but is taller. 36x18x24 if I remember right. It's a natgeo brand I've been told they're discontinuing the brand. You have to assemble but it's very easy you only need a screw driver for 4 screws