I've got two thin pieces of foam core board from matting my artwork used to fill the gap in the right door track. You could probably use about a 3/8" thick strip of wood or styrofoam or something too. The part that I hate about having to fill that gap is that I can't use the left door. I have to open the right door, take out the strip filling the gap, and then open the left side. I need to send Ali an email asking if they can make some sort of shim that will raise the bottom door track to be flush with the litter dam of the front cage panel. That would mean having to cut different size doors, move the lock up about 1 1/2-2", etc. alternatively I've considered going with the swinging doors but I just don't like them. They're not glass, they don't swing down, the post in the center of the cage from is bigger, the door frames are proportionally smaller windows. I'd prefer to keep the sliding option if they can make a way to eliminate the gap in the right side of the door track if at all possible.
Sent from my iPhone using Tapatalk