The way my house is built, my pantry, hallway closet, and the built in "china cabinet" all butt up to each other. I have often wondered if there is any dead space back there, but don't know how I could get to it and keep it hidden. In my brain, it just seems like the depth of the closets and cabinet don't seem to account for all the area. Would be nice though. I am getting pressed for safe storage places right now, and have just barely started.