I just finished cleaning out my 4x4 coop today. The human door is 3 1/2 feet wide, taking one side of the coop, and the nest boxes open from the outside , so clearing the pine bedding from the floor of the coop and nest boxes is easy- using a dustpan as a scoop, and empting the bedding into a trashcan. I actually prefer the coop raised as the floor is at waist level for me - I am 5'4. The only challenging part of doing a thorough clean is scrubbing the walls. I swept the floor, vacumned all the dust and bits of debris that are still left, used soap with a little bleach and wiped down all surfaces using a washcloth, and then rinsed it with water, THEN I half get into the coop reclining on the coop floor which is now really clean (linoleum) (yeah, at this point what is a lttle head to roost contact- just plan for a shower after ) while I finish scrubbing and rinsing the walls. By the time I was done this afternoon, the coop looked liked new ! Maybe a sponge mop/scrubber (with a long handle) will help, if you can't physically get into the coop?