I don't know about those frames. You would still have to line it with some kind of screening, as the openings seem to big, and possibly a hazard for your cham to get himself stuck or escaping. After getting crafty and managing to connect a front to it, and screening the intereior, you will probably wish you had just forked out the little bit of extra money for an actual chameleon cage. You can find used cages all over, CraigsList, the Recycler, and Classified sections on chameleon sites, for about as much as you would spend in materials on a DIY.

Here is a great article on doing DIY cages from Chameleons! Online E-Zine. This is similar to some of my cages. These are rather overkill for what you are looking for, but it can still offer you ideas on the specifics.