I live in an area where there's lots of guy cutting Bluestone. Most use and older trucks and put a wood flatbed on them. Most (read 'All') use rough cut hardwood. There pretty much framed up just like you would for a deck on a house.
I looked into doing the same on my '87 last year because I didn't like the price for the beds I was finding. I ended up finding one at a junk yard 'for cheap' and putting new wood into it. It came out real nice, after I cleaned the steel real good and painted it. If I end up parting out the truck - it'll be for sale. I know that's not alot of help for you, but next time I'm at my yard I'll take a picture for you (if you want).
White oak would make a good bed, plain one side and you can get a nice finish,I like Cabot's 9200 natural for protection. Also durable and tough would be locust, a lot of guys around here use it instead of treated lumber.
[/SIGPIC]George 54 F100, 78 F150, 79 F150, 86 F250, 87 F250 Member #5 Boy you ain't Right Club Official Slackmaster #15
For my '74 highboy, which probably has a different rear chassis section than yours (highboy was basically an F350 chassis in back)...
I used pressure-treated stuff, 4x4's for the main rails over the chassis rails.
A short piece of 4x4 at front and back, and a long 4x4 on top of that, cleared the hump in the chassis rails.
Whatever bolts you have, to hold it down to the chassis.
Cross beams, 2x6's, evenly spaced, FLAT (not vertical), bolted down to the main beams, and then more 2x6 running front-to-back, again, bolted down to the cross beams.
4x4's at the edges bolted down, and then I made sides and front that bolted to the 4x4s and to each other.
Not a complete picture for sure, but it sure worked. Had a 1200lbs diesel engine on it, didn't even flinch.
- art k. - Moderator for the Superduty, V10, 6.2L and FE forums
'13 Taurus SHO 3.5L Ecoboost w/Perf Pkg
'01 F250SD SC SB XLT V10 4x4 Volant CAI Hedman headers 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see. ®
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