BH, if you have the expanded metal that has been polished, then it is not harmful to rabbit feets ... so, adding resting boards/mats of some sort will work for the babies ... they will learn how to walk on the expanded metal, but have the safety of the resting board/mat. However, I had a buckling in a cage with expanded metal and somehow, while he was laying and relaxing, his hock slipped through a hole and he freaked out!
So, for the cages where there will be babies, you still might want to consider flooring with standard flooring wire just to give the babies more "turf" to walk on.
When I built my frames for the cages, I knew that the flooring wire available in my town was 16 gauge, and I was going to be putting Silver Foxes in them, so I steepled cattle panel (4" x 4" 8ga steel) for the cage support. It works wonderfully to support the bottom of the cage with the heavy SFs in there! And, poop either falls past, or is easily cleaned off with a wire brush![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So, for the cages where there will be babies, you still might want to consider flooring with standard flooring wire just to give the babies more "turf" to walk on.
When I built my frames for the cages, I knew that the flooring wire available in my town was 16 gauge, and I was going to be putting Silver Foxes in them, so I steepled cattle panel (4" x 4" 8ga steel) for the cage support. It works wonderfully to support the bottom of the cage with the heavy SFs in there! And, poop either falls past, or is easily cleaned off with a wire brush