Cardboard Tube Shelving Unit - Using a simple notch cut method, I was able to construct a very strong and effective shelf from a number of cardboard tubes.

Cardboard Tube Shelving Unit - Using a simple notch cut method, I was able to construct a very strong and effective shelf from a number of cardboard tubes.

Single Unit - Using a simple notch cut method, I was able to construct a very strong and effective shelf from a number of cardboard tubes.

Double Unit - Using a simple notch cut method, I was able to construct a very strong and effective shelf from a number of cardboard tubes.

Triple Unit - Using a simple notch cut method, I was able to construct a very strong and effective shelf from a number of cardboard tubes.

Customizable Option - The pattern on the top surface of the shelf allows the user to attatch many different pieces that fit in and stack to different heights whenever needed.