I built this welding table the second week at my new job since they brought me in as their new and first fabricator. The frame of the table I took the idea from one of the welding project pics on Miller's site and added my own little twist with the plasma cutting grate. This picture is just after finishing up the basic welding, but I've since painted the frame, and added a few more tool holding brackets and other details. I'm waiting on a catch pan to be bent up locally which I'll put under the plasma grate and be quickly removable to empty when needed.
The table was mig welded with my Lincoln 175 hiding behind the PowerPro205, but I did use the Everlast to cut out the 18 x 21" opening. Our 30amp breaker kept tripping from extended use at 45+ amps so I had to do short 1.5" sections and keep taking breaks.
Specs of the table are:
4x8', 1/2" thick top sheet
2x2", 3/16" wall square tubing
3" non-marking casters, overall height of 5.5" (if I recall right) with locking wheel and swivel
total weight approximately 750-800lbs. Raw materials weighed in at 850 or so on invoice, before cutting out 18x21 plate.