jcmiller Posted February 8, 2013 Report Share Posted February 8, 2013 I used a measuring device to check the gauge of the sheet metal in the removable floor pan in my '42 and got a reading of 19. I thought I read on here somewhere that the gauge was 20. Does anyone know for sure what gauge was used? Quote Link to comment Share on other sites More sharing options...
Harvey Tank Posted February 8, 2013 Report Share Posted February 8, 2013 20 ga. sounds about right. 20ga. is pretty lite, its kinda hard to weld. unless you are an expert welder. I used 16ga. when I re did my floors. tack welded about 1' apart all around then came back and finished the weld pass.you still got to go slow. don't let it get too hot. I hope this helps. others here on the forum might another way of reparing the floor pans. Quote Link to comment Share on other sites More sharing options...
Harvey Tank Posted February 8, 2013 Report Share Posted February 8, 2013 here is some photos of my floor pans. Quote Link to comment Share on other sites More sharing options...
chopt50wgn Posted February 8, 2013 Report Share Posted February 8, 2013 I would use either 18 or 16 ga metal. You can punch or drill holes and do rosette welds to hold it . Quote Link to comment Share on other sites More sharing options...
jcmiller Posted February 12, 2013 Author Report Share Posted February 12, 2013 Thanks for the feedback. I'm going to get a sheet of 20 gauge and play around with that. I'm taking a welding class and they have a low-energy MIG welder that works pretty well on sheet metal. It seems like I should try to use the same gauge as original since it will eventually have to be joined to original sheet metal. Sunsetdart - what do you mean by drilling holes and doing rosette welds? Quote Link to comment Share on other sites More sharing options...
moparbenny Posted February 12, 2013 Report Share Posted February 12, 2013 just remember when your welding sheet metal your doing a series of tacks, take your time and let the metal cool. Quote Link to comment Share on other sites More sharing options...
chopt50wgn Posted February 12, 2013 Report Share Posted February 12, 2013 Thanks for the feedback. I'm going to get a sheet of 20 gauge and play around with that. I'm taking a welding class and they have a low-energy MIG welder that works pretty well on sheet metal. It seems like I should try to use the same gauge as original since it will eventually have to be joined to original sheet metal. Sunsetdart - what do you mean by drilling holes and doing rosette welds? You drill a hole, usually around 1/4" and use that hole to weld. Instead of using rivets or screws you do the rosette welds. Best advice is when you go to your welding class ask the teacher about rosette welds. I know he can explain much better than I can. Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted February 13, 2013 Report Share Posted February 13, 2013 Original was probably 19 gauge and can still be had. Most places don't and won't stock it. Bear in mind the tolerances for 19 gauge overlap those for 18 on one end and 20 on the other. 18 will be easier to weld since it's a bit thicker and wouyld be better for a floor pan IMO Quote Link to comment Share on other sites More sharing options...
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