The 2x lumber underneath would work for the frame?
Deck planking still seems reasonable at the store. under $1/ft
Discover the distinctive difference and see why this lumber is not only treated to protect against rot and decay, but selected to meet the highest industry grading standards for strength and appearance.
www.homedepot.com
While we wouldn't want the decking at 6MR - we might want the 2x if it is still solid, and 10' long or better.
You'd think it could be recycled, just grind it up and make a new board from it.