18, 16 or 14 gauge?

[ready]

What gauge would you guys use to create a new floor inside the cab?
I will be cutting the 45 right behind the door pillar to extend the cab and add an extra door. I was thinking maybe even 14 or is it to thick?

 

[CruisinFJ60]

you could easily run 18 if it was formed like the factory stuff as it increases strength but without some sort of forming or a bunch of braces I would probably go with 16 maybe 14 but likely 16. If weight is no concern for you go to town with the 14 if you like.

 

[GarageRat]

18ga with some beads rolled in it will do you fine.

 

[ready]

what is the best tool to put some rolled beads? Brake tool? If so where can I get one?

 

[burnttoastburgos]

I dont know what vechicle you've got, but heres my 40 build, I bent 10 gauge, far stretch from oem but its definetly solid.

 

[chicago]

I dont know what vechicle you've got, but heres my 40 build, I bent 10 gauge, far stretch from oem but its definetly solid.

DUDE!!!!
That came out AWESOME!

Ive been using 18 ga on my panels, and IIRC it was 10 ga I used for the cargo area for a sturdier base.

I cut out the tank pan and used a harbor freight bead roller. It was relatively cheap, but it WILL REQUIRE some ADDITIONAL BRACING for it to work right. The heavier ga. steel you use, the harder it is to make a decent bead. Youll need more force. When you ADD more force, the arms WILL DISTORT and F up your bead. I fought with it and made it work the way it was. Once I was done, I returned it.
FC 187 uses the same bead roller in his shop, but "added" some bracing to it. There are other models out there, but they get spendy QUICK!
Here's a couple pics of how it came out...You can see that its very CRUDE, but...lends some rigidity and it will work fine for where its at.

HTH