I recently found a source of Hemp Plywood through the magic of twitter. This is the first time that I have found Hemp Plywood on the internet, so it is now added into the hemp cloud.
You can purchase the Hemp Plywood directly from http://www.hempsteads.com/.
As hemp can be harvested two or three times a year, it is one of the best sources of renewable wood products. If you're a contractor who is trying to go green, this would be the true way to go.
As always, for more great hemp products, you can find them @ thehempcloud.com