After buying a few pieces of furniture, I had a number of large pieces of cardboard left over. Rather than just throwing it all in the dumpster, I decided to make a coffee table with it instead! I wanted to make it fairly sturdy, so I thought I would try forming the cardboard into triangular beams as the basis for the construction.
What you will need:
Cardboard - lots of it!
Glue - a big bottle of white glue
Something to cut the cardboard - like a box cutter!
A straight-edge or ruler - to help make the cuts straight!
Step 1: Cutting the Cardboard
I had two long boxes that provided most of the material for the table top. I used the width of the boxes to determine the width of my coffee tables, but you can cut yours to whatever width you desire. The length of the table is determined by how many beams you can get from your cardboard. Cut the cardboard into sections that are 30 ribs wide. (Your cardboard should be all the same type so you can can measure pieces by just counting ribs.)
Score the pieces into sections that are8-8-7-7 ribs wide. Fold the cardboard on the scores, roll it up into a roughly equilateral triangle, with the two ends overlapping. (The image below shows a crosssection of what it looked like.) Glue the overlapping sections together and you should have a nice, strong triangular tube of cardboard.