I made this 4 foot wide rack system so it would have a lots of air flow around it and it’s on wheel so you can move it around when you need to. I used a wire shelving system and the Sterilite 15 qt. tub # 1754 for baby boas and the Sterilite 74 qt. tub # 1969 for sub adults and boas about 6 feet long and less than 12 to 15 lbs. The 1754 tub measures 17 inches x 11 inches x 6 - 3/8 inches and the 1969 tub measures 44 inches x 19 - 3/4 inches x 6 - 3/8 inches. I also used 4 inch flexwatt along the back of each shelf to heat the tubs.
The heat tape is mounted on 1/4 inch masonite with aluminum tape. The electrical wires are solder, silicone caulk and electrical taped in place on the flexwatt. So there is no wires or flexwatt tape touching the metal rack. This way there is no way for you or the snakes to get shocked. The masonite also helps the tubs slide out easer when you want to open them.
Set up like this picture cost me about $350 with 4 inch X 44 inch flexwatt on each shelf. I had to buy 2 wire shelving set ups to make this one. The shelving cost around $80.00 each at Sam’s club.
I also have this ARS rack and plan on getting the second one soon.
I do have two old Freedom Breeder racks I still use. But they have the old wire grating between the tubs and it like a cheese grater to any snake nose that trys to get out. I believe the new FB rack are made different now so this doesn’t happen now. I don’t have any pictures of just the FB rack.
Take care
Tom