I really had wanted to go with a colony design for the rabbits, but we were unable to make it as large as we had wanted...I guess I have a few questions for those in the know in Colony raising... Is mine big enough to qualify as a colony? It is up off the ground because it can get soggy sometimes....The pen is 4x8x2 all hardware cloth structure with support and the House is 4x4....it is also tall enough I could make a full size loft within it, for added square footage. I have three rabbits, two doe and a buck...my intention was to keep the Doe here and allow for kindling, and the buck would have his own place very similar in design....I also have an additional "house" I can use that measures 6.5'x3.5'x4' tall. or I could turn it upright and it could be 6.5 tall with two levels....I will make a outside pen for this one also, possible as a grow out for kits.....Or would you merge these units to be one large interactive colony? I have wooden floors in the houses with straw/hay...would you put wire down instead for the sheer cleaning perspective and urine issue....Go figure they want to poop in the house and not in the all wire pen Here's what I have so far....