Butt welding at 1/16 is fine or you can over lap if you like as long as the older metal is ground clean in the area of the weld. Stitch weld the panel about an inch apart giving the metal a little time to cool so it doesn't warp. Fill in later alternating spots as you go.Also grind offany paint on the new panel in the weld area,especially if it's off shore black.
Last edited by DrewP; 09/06/2008 5:03 PM.