frankly, this is utter garbage.  i guess you get what you pay for.  i admit that i'm actually using mine, but i had to completely rebuild and reinforce the entire unit.  i spent more than $250 replacing most of the wood, and all the latches and hinges.  i doubled up most of the siding with plywood, and had to install weatherstripping, because this thing is filled with cracks and other spaces for drafts to blow through.  i also installed reinforcement pieces on all corners, as any raccoon worth his salt would be able to knock this thing over with very little effort.  the perch is a joke, and also must be replaced.  same with the ramp.  i rebuilt mine, as well.  the sliding door is useless.  i used 1/2" hardware cloth throughout, as well.  lastly, this is WAY too small for three average-sized chickens (wyandottes, barred, etc.).  do not put more than two fully-grown chickens in this thing.  three silkies, maybe.