Floor Drawer System

I built this floor drawer system. Two drawers come out the back on full extension 500lbs slides. The right door can be opened while only the one rear door is open. Then there is another two drawers each pulling out of one of the sides. They're about 9" deep and I the whole assembly eat about 12" of space off the car floor. But I believe this is the most efficient use of space in the car. I can store all sorts of tools and smaller items without having them slide around in the back and I can still put large items in at the same time. It's also nice for sleeping since you're a little more elevated.