Ron, here is an old post of what I used as some more options for ya. Good luck. Paul.
"I finally replaced the bed decking on my '48 Chevy 2 Ton. After using it with those old rotten boards for the last 7 months I'm glad to have brand new wood that I won't step through or loose bouncing down the highway.
I used 1-3/4" x 12" paralam (microlam). It's basically thick plywood they use for floor joists and such. I attached it similar to how pickups are done with the metal strips. Except that I didn't use the formed strips. Instead I used 3/16" x 1-1/2" flatbar held down with countersunk allenhead bolts. The strips are rabbited into the paralam just a bit lower than the top of the wood and so the wood is the highest point.
I really like how it turned out and I like the paralam material, it's not going to split or have knots fall out leaving big holes to patch. It's going to be interesting to see how it holds up to daily use."
Here are a few pictures:
http://good-times.webshots.com/album/560242954LrhTOd Paul.
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