This was easy to put together.  It is smaller than I anticipated, even though I read the measurements. My buns are happy with their new home, but it won’t last long.  After only 1 week the wood on the ramp and on the upper level is already showing marks from nails and teeth. The screws for the hinge on the lift up top are not long enough, already ripped out. I do love the ease to clean it and the separate spaces for the buns to sleep and relax.