I need to replace the whole floor in my '55 project . Someone had put a **** carpet in the truck years ago and it sat for 20 plus years and held water . Rusted the whole floor . The rockers and everything else are good. Im debating on fabricating my own floor with some square tubing and flat metal or buying replacement panels ect. Any thoughts ? Im not finding alot of venders like i thought i would. Please advise. Thanks Chad

 

You can find the best quality replacement panels at Mid Fifty Home - Mid Fifty F-100 Parts
MF has everything available for the 53-56 trucks and the gals (it's an all female business!) there are very knowledgeable and helpful. You can download their catalog off their web site, but I highly recommend calling their toll free # and request a printed copy be sent to you. Not only is it free, but it is also packed with tons of useful information and good illustrations you'll want to keep close at hand.
I recommend doing 1/2 the floor at a time to reduce chance of cab shape distortion.