It took me ~12 hours of work spread over a couple weekends. Most of the time was actually me trying to figure out the lock.
You will need:
roughly 30 linear feet of wood (between 8-12 inches wide S4S)
screws or dowels to hold things together
a mitre saw
stain or paint
~17 feet of moulding
power supply for lock
2 exit buttons for lock
Step 1: First Take Off Door
Step 2: Measure Your Door
*I ended up adding a quarter inch to the height to hide the space at the bottom which is normally present for most normal doors.
Step 3: Cut Wood to Correct Lengths
2 lengths the height of your original door
5 lengths the width of your door (minus the thickness of the wood)
10 1" strips
1 4" X width of door strip (to conceal the wheels)
3 blocks the size of your hinges
*I suggest S4S wood so you do not need to plain it
2 72" boards (12" width by .75" thick poplar)
5 28" boards
10 1" strips
1 4"X28" Strip
3 2"X 3" blocks
Step 4: Measure and Attach 1"strips
I screwed these strips to each side keeping them level. (You can use any attachment method you would like) Mine are every 18" and I removed them later.
Step 5: Attach Top and Bottom Shelves for Structure, Then Add the Rest
Rest the short board directly on the guides you screwed in during the last step, and screw through the fact of the long board into the end of the short board. I put three screws on each side of each shelf (You can use dowels or any other method you'd like).
Always start with the top and bottom, that way you will be able to stand the shelf for the rest of the project.
The top is flush to the top of the door, the bottom should be 4" from the bottom. You will use this space for the wheels. (Yes this thing rolls).
Step 6: Add the Rest of the Shelves So This Looks Like a Book Shelf
Step 7: Screw in Your Wheels
You will screw these directly into the bottom shelf. These hold the weight of books and you will reduce the stress on your door frame. I just spread them out evenly across the bottom. I needed to add some height with scrap wood.
Step 8: Hide Your Wheels
Step 9: Add Hinges
Screw the hinges to the blocks in a secure fashion re-using the screws from the original door,
Stand your shelf up and then attach the hinges where you removed them. Since I was alone, I added broke the hinges apart so I only had to line up the pin.
Step 10: Cover the Massive Space Between the Shelves
Step 11: Add Moulding
Step 12: Make Sure Your Door Opens and Shuts...
Step 13: Pick Out a Lock
Any one will do, but beware there are almost no instructions in the box.
I went with a magnetic lock, where the magnet is attached to the shelf
a ZL bracket (which is attached to the wall and hold a hunk of metal to add force)
A power supply (Hardwired)
2 exit buttons (One hidden on the shelf, one on the inside wall to let me out)
Step 14: Attach the Lock
Screw the rest of the bracket to the side of the door (with the hunk of metal). You will need to align this with precision to make sure the door looks flush when closed.
Step 15: Add the Exit Buttons
The other is wired over the top of the door frame and down the hinge side of the door. You then drill a hole in the plywood to run the wire to where you hide it.
I used my friend's math trophy he earned in 7th grade. He is mad I stole it.