My first Skyhide twisted out the mirror mount brackets and came crashing down with my 13.5 lb Carpet. I learned that 4 mounts are not enough for heavy snakes. Because of this I went to 13 of the big 3/4 mounts. Now keep in mind that these are the XL Reptile Basics hides. This one with the Boa has only 10 mounts, I left the front mounts off as an experiment, so removing for cleaning is much easier, just slide in and out. So basically just lots of mounts on 3 out 4 sides.
No reinforcement needed for 1/2 in plastic/PVC.
Small mounts on left in the pkg, large 3/4 in mount on the right.
Also
Do Not use the provided screw and anchor. I used 3/4 in countersink #8 screws.