A really good way to store your planes in tight spaces in on a free standing plane rack. It would be more permanent to have real shelf storage, but in an apartment you can't just go putting holes in the wall (I think). I built mine using 2 inch pvc. It can hold 2 40size models, and up to 3 wings. It could be built taller to hold more planes if you wanted. It only takes up about 8 sq ft.

LT-40