Sheetmetal guage for floor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JointTech · 10-30-2012, 02:25 PM

In my searches I find 19guage is the standard for body panels.
I cant find anything on the floor.
I need to repair a couple spots and need to know what gauge would be best for the floor.
Also when I go to the metal supply what am I asking for? t304 stainless or what?

cdowns · 10-30-2012, 04:15 PM

not stainless
i always used 18gauge mild steel to make patch panels

**special-K** · 10-30-2012, 07:07 PM

Ain't no stainless in no Chevy bodies

. As far as I know all the sheet metal body parts are the same gauge

BossHogg69 · 10-30-2012, 07:47 PM

Quote:

Originally Posted by cdowns

not stainless
i always used 18gauge mild steel to make patch panels

Same thing I used to my floor patches & bed patches. Thick enough to weld easily, but still very workable. I tried welding it with .023" wire, but .030" seems to work a little better if you can leave yourself a little gap between your patch and the original sheetmetal.

JointTech · 10-30-2012, 07:53 PM

Thanks guys.
And I'll just ask the dumb question so the next guy doesnt have to.
If you are putting in a patch why not make it stainless? It wont rust... Maybe the texture or something is different so wouldnt want it on a body panel but hidden parts why not? Can you not weld stainless and mild steel together?

cdowns · 10-30-2012, 08:12 PM

stainless is a pain to weld and very very difficult to work and contour and bend is near impossible with simple hand tools

plus it is expensive as hell

JointTech · 10-30-2012, 08:14 PM

ok i can see that. I just have a bunch left over from doing my kitchen backsplash with big sheets of 22 gauge. It is all the things you mention lol.

**special-K** · 10-30-2012, 08:44 PM

Stainless will react with the mild steel and actually rust.Stainless to stainless won't rust,but any contact with common steel and it will.

10-30-2012, 02:25 PM	#1
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,856	Sheetmetal guage for floor In my searches I find 19guage is the standard for body panels. I cant find anything on the floor. I need to repair a couple spots and need to know what gauge would be best for the floor. Also when I go to the metal supply what am I asking for? t304 stainless or what? __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread

10-30-2012, 04:15 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Sheetmetal guage for floor not stainless i always used 18gauge mild steel to make patch panels __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

10-30-2012, 07:07 PM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Sheetmetal guage for floor Ain't no stainless in no Chevy bodies . As far as I know all the sheet metal body parts are the same gauge __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-30-2012, 07:53 PM	#5
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,856	Re: Sheetmetal guage for floor Thanks guys. And I'll just ask the dumb question so the next guy doesnt have to. If you are putting in a patch why not make it stainless? It wont rust... Maybe the texture or something is different so wouldnt want it on a body panel but hidden parts why not? Can you not weld stainless and mild steel together? __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread

10-30-2012, 08:12 PM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Sheetmetal guage for floor stainless is a pain to weld and very very difficult to work and contour and bend is near impossible with simple hand tools plus it is expensive as hell __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

10-30-2012, 08:14 PM	#7
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,856	Re: Sheetmetal guage for floor ok i can see that. I just have a bunch left over from doing my kitchen backsplash with big sheets of 22 gauge. It is all the things you mention lol. __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread

10-30-2012, 08:44 PM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Sheetmetal guage for floor Stainless will react with the mild steel and actually rust.Stainless to stainless won't rust,but any contact with common steel and it will. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

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