Hi TOH Community,
I recently moved into a home that has composite decking. The home was built in 2000 and I am assuming the decking was install soon after. I know that there were few companies that manufactured composite decking, Trex being the main one. I have searched all over an under the deck for any manufacturer markings and cannot find a single one. Below is a link to where I have placed images (I had a difficult time inserting them in the post). Please take a look and reply if you have any experience or knowledge to identify the material.
Thanks so much.
Regards,
Skylarks

http://www.pbase.com/slark/decking