What gauge metel did they use at the factory for cab floors. I would guess around 20ga.

 

I think its 16ga.

 

My recollection is that it is not a standard gauge, but is close to 19. I would use 18 for a flat patch.

 

Ross, sounds good. I dont believe 16ga, thats very close to 1/16" which is VERY heavy for auto sheet metal.

 

I was told that it was made of 19 gauge by a fabricater/ bodyman. Said it was just a little easier to work with and was available in the US but not here in Canada, wouldn't be cost effective to have it shipped up here. I used 18 gauge for all my patching and didn't have too much problems. Most patch panels I bought were 18 gauge as well.

 

I have a sheet 'metal gauge' gauge. It's a round disc with specific sized grooves cut into it to measure with. Unfortunately, my cabs are buried in the snow.

 

I have one too (found it in the bed of a boneyard truck!), but I don't have any holes in my floor!

 

SO if you use 18 gage for flat what about curved panels?

 

I'd use 18 ga cold rolled for flooring. 20 ga is a little too thin for walking on IMHO. It will form well too. I use it for body repairs as well, gives me a little meat for metal finishing, stretching, doesn't warp or burn thru as easily when welding.