Ours is set up on a pulley so I don't have to go into the run to open/close. My hubby used a coated wire vs rope because he felt it would take more wear & tear. The door is about 8 inches above the floor so bedding doesn't get into the door track. The chicken door is set into one of the people doors to save space. The door sits into a lip so that the door can't be opened from the outside (think raccoon).
here is the human door and this is the chicken door we have the lock on the inside of the hen door for extra protection
