For my 24' wide garage I had 5 scissor trusses & 14 "attic room" trusses built. Cost with tax & delivery was right at $100. a piece. This was a few months after Katrina, so the materials cost was a bit higher than now.
Trusses are built in a factory. They are held together with stamped...
http://www.floortilecloseout.com/
http://www.garagejournal.com/forum/showthread.php?t=8340&highlight=closeout+tile
Several people on the board have had this installed for a while now. But there doesn't seem to be any feedback on how its held up.
This http://www.garagejournal.com/forum/showthread.php?t=8340&highlight=closeout+tile was posted last year. I'm curious to learn how it has held up. If you installed these, please relate your experience. Thank you.