Nice use of space, but wrong casters used. (Should have been inline, not swivel) and it needs a back panel. Even Masonite 1/8" or 1/4" would do. The BACKER is what keeps it square, and there is no need to get to both sides. Add a pair of drawer guides to the wall side, and it will slide a lot smoother, (like a desk drawer), and will hold it upright when loading and unloading.
@kellory Like many ideas....additional eyes and brains will see ways of improving the basic concept. I like the idea of (covert bullet resistant) sliding bookshelves on tracks each side of windows, to block (or at least slow down) incoming and provide blackout capability when necessary. A bit of home hardening that does not look all too obvious.
Nice idea, and simple to do. Plate steel backers, and a hanging rail. Edit: but why leave a weak centerline? Add a porthole to the backer, build bigger than the window, and slid completely across from one side.(and remember bullets go through walls. Build that bookcase to just above floor height.)
Original construction looks like the bottom frame on my futon. I do question if it would mar the door on the fridge.
My thought is people with kids would run the risk of the kid banging the door against it. It is a great idea but having a line down the fridge door would drive me insane. Maybe you can use an old hose for a door stopper. Or leave space to protect the door.
It would, if you do not allow enough room for the door to pivot. Easiest way to make sure it clears, is to stop the front edge, just behind the door, even with the body of the fridge.
They should not be open at the same time. The door would be in the way of getting to the shelf. ( if it were behind the door). If it were on the handle side ( recommended) it could have very little effect on the door.
Some fridge door hinges will allow the box to fit flush with a wall and not scrape anything when opening the door (like mine.) Uv cuss, you need to know that before starting the project, but if your box is fit with that type hinge, it's the best of both worlds.