This is a perfect solution if you are running out of desk space and you want to make a highly customizable unit for your documents and nicknacks.
To build this you will need:
Plywood (enough for 5 1x1ft squares)
A table saw (or any tool for cutting wood)
A drill (or any tool for drilling)
30 ft of strong rope (cotton works well, especially if it has a core)
Shears (or any tool for cutting the rope)
Tape for collecting the frayed ends (or a lighter if using synthetic rope)
A metal rod
A clamp for bending it (or it can be done by hand)
Step 1: Cut Wood
Of course you should feel free to add more shelves or change the size. There are many places throughout the tutorial where you can customize the design, but I will not mention each one. It is really up to your discretion as a maker.
Step 2: Drill Holes
I've placed mine a half inch away from the edge and made the holes 3/8" thick which is just larger than the diameter of the rope I have.
Step 3: Cut Rope to Length
Each shelf is held up by 3 ropes, so you need 3 ropes of 5 different lengths, the difference between them being the height of each shelf.
I've made my shelf 2 ft high, but you need to leave around 4 inches for the knots on either end, so the longest rope is 32 in (24+4+4).
Therefore, I cut the rope into 3 x 32 in, 3 x 27 in, 3 x 22 in, 3 x 17 in, 3 x 12 in.