Well what I did was I bought some galvanized hardware mesh and I took a bunch of 2×3’s and we ripped a slit 1 inch deep in the center of each. Then we cut them the right length and put 2 together. Then we cut the mesh the right size slid it into the wood then attached the last pieces to it and made a bunch of panels like this. We then put them together and put doors on floor ramp etc. we made a 4 ft by 2 foot and 4 foot high 2 lvl cage with about 80$ and itsh igh quality and stuff if you would like a picture let me know hope this helped and congrats on a bunny!

My rabbits don’t live in a condo, but I built them an outdoor run type thing with those materials. You definitely can build a rabbit condo with those materials but make sure to cover any sharp parts.
You can probably look on youtube for how to build a rabbit condo but use the materials you have. Mabey if you want your bun to have more space to run around, you can build a run/x-pen with your leftover material and attach it to the condo.

I have both an X-pen set up and a condo set up. Honestly, I am starting to prefer the x-pen set up more. It’s much easier to clean and manage feed, ect. We had none of the things required to build either set up. I decided to invest in a trip out of town for the condo supplies. I found the cubes at target, however, half of the grids are useless so you end up buying more. The second time we bought the grids, I ordered from amazon. I got the boards for the floors cut at a home depot. You just tell them the measurements and they will do any cut. For the x-pen set up, I did the same for the board floor. I got the X-pen from amazon, and zipties for both setups will be at any home improvement/farm store. Hope this helps!

Also, I find that you really need to watch what type of flooring you use int he condo. Ashe slips off shelves occasionally when she doesn’t quite make a jump because we have slippery tiles in there. We move in 2 weeks so I will be doing a re-vamp.