What would be the disadvantages of making a welding table out of 1/4 inch aluminium plate? I have been experimenting with a piece of scrapally of this thickness and haven't come across any problems as yet. The reason I ask? I have found a pneumatically operated drafting table that I would like to convert into a welding table for doing those litttle TIG jobs that require a steady hand and good positioning. However I think a steel plate would be too heavy for it. My deal table area would be 4ft by 3ft. Any comments welcome.