I started by folding paper in the same proportions as the door I was using.
The full door was too big to work with for just a coffee table so I cut it down and was able to use the leftovers afterwards.
The cut sections from the table saw
Here you can see the additional recycled material used for lengthening two of the corners and making the legs.
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Folded Door Coffee Table

A coffee table I made using an old door that was given to me.

Now featured on Ripley's Believe it or Not!

http://www.ripleys.com/blog/turn-door-coffee-table/

Ryan Laprise
Prototype and Design Engineer at Microsoft, Redmond WA Seattle, WA