Hmmmm, the safest thing I can think of if you want to allow more free-roam time is to make a bunny-proof floor on top of the actual floor. For a few months in late 2020 I lived with my in-laws and we wanted to make sure our buns didn’t destroy the carpet in the guest room. I put down a huge plastic sheet (you can get thick plastic sheeting from the hardware store), and then I laid down those low-pile indoor/outdoor carpets on top (also from the hardware store). I weighed the edges where they were prone to chew down with heavy tiles.
This set-up worked pretty well and was easy to keep clean. Granted none of these buns was obsessed with carpet chewing, but that particular carpet was really low pile so they tended not to try to dig in it. You could also lay down a big sheet of vinyl flooring and put some rugs or blankets on top. I’m imagining you could do this in one portion of a room that they could have access to 24/7, and then just supervise in other areas?
I recommend getting a carpet spot cleaner. I use a bissell spot clean pro and it’s amazing for pet messes. I used to have a smaller hand-held battery powered bissell spot cleaner but it was annoying to keep charged and very low capacity. I also like to use the natures miracle carpet shampoo with it, I find this works better than the normal nature’s miracle.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.