I designed this closed storage unit for my main bathroom. Two adjustable shelves behind each door make storage very flexible. The open middle shelf is tall and easily accessible for items used multiple times a day.
I built this with a single sheet of plywood. I splurged on nice hinges for a full-overlay door.
I drilled my shelf pin holes using a piece of pegboard as my guide, and some painters tape to mark the depth on my drill bit so I didn't drill too deep.
Getting the doors to hang straight was one of the hardest parts!
I apologize that the pictures are all sideways, I don't know how to fix it.
Hinges - $16
Handles - $3
Rust-Oleum Half Pint Ultimate Satin Polyurethane - $7
Shelf pins - $4
Total Cost - $70