Welding table question

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I just got a new to me table, 42" x 62" x 1"I don't like the way it was built, it has double A fame legs.I want to build a new frame using square tube.My question is what size square tube should I use for the legs?Also any idea what the top weighs?Thanks
Reply:Softail, If I remember correctly 1" plate weights about 41 pounds per square foot so that would make your table top about 740 pounds (+/-.)  My table has a 5/8" x 38" x 60" top and I went with 3" x 3" x 1/4" tube. That may be over kill but the cost was not too much more to have a littler beefier leg.Last edited by Duker; 07-21-2013 at 10:06 PM.Lincoln 180 MigLincoln 225 TigHypertherm 65My Welding Table BuildVideo describing the Table
Reply:According to this weight calculator your top weighs 737 pounds.http://www.portlandbolt.com/tools/pl...ht-calculator/
Reply:With 4 legs, that would be about 185 pounds per leg. Not too much.  Some 1/4" 2X2 with a little diagonal bracing would be fine, I would think.-RuarkLincoln 3200HDHobart Stickmate LX235TWECO Fabricator 211i
Reply:about twenty years ago I decided that I wanted a new bench.  It had to be very flat and totally adjustable for flatness. I started off with a piece of 5/16 th hot rolled plate .  I layed that on our big bench at work and started building a girder base for it.  So it has 1 and 1/2 by 1 and 1/2 angle Iron girders running length wise and cross wise every 12 inches.  the girders are 8 inches high. The frame is extremely rigid, and all of it welded. It is just barely tacked to the top plate.  I have never had to adjust it in 20 years. although it would be really easy to do.  This bench is not built to pound on, but it is excellent for laying out frames or anything else you want flat.  A good bench does not need to be terribly heavy unless you wish to use it for an anvil    Mac
Reply:@ Softail Rider - Density Schedule for Common Metals:* 6061 aluminum, 0.098 lbf/in^3* 4130 steel, 0.283 lbf/in^3* 3/2.5 Titanium, 0.160 lbf/in^3Table top volume = 2,604 in^3Weight = Density x Volume = 737 lbfRecommend, based on aesthetics and strength, you use 3" x 3" x 1/4" (or 3/16") HSS (hollow structural shape). A 2" x 2" x 3/16" would safely accommodate the loads, but your table would look better with wider legs. 3" x 3" HSS with a wall thicknesse of 1/4" and 3/16" at an effective length (KL) of 4ft has an allowable concentric compressive load of 58 kips and 45 kips, respectively. Note: a kip is 1,000 lbf.  Remember to consider/design for bending loads. Important for the table legs to resist racking loads during construction and future movement around the shop.Last edited by ManoKai; 07-21-2013 at 10:28 PM."Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:Ok  3 x 3 x 1/4  is what it will be!Thanks for the help
Reply:here is my table I've working on!Last edited by Softail Rider; 12-25-2013 at 05:39 PM.
Reply:That turned out real nice so far. What else you going to do to it? I know that can't be all of it yet. Surely you can do something to add some more weight to it.  I bet a tornado could blow away the whole shop and that table would still be sitting there..
Reply:I can hear those itsy bitsy casters screaming already when you put the weight down on them.But the rest of the table looks super adequate.  And your toes and shins will thank you for recessing the legs away from the table edges.
Reply:Originally Posted by walkerweldI can hear those itsy bitsy casters screaming already when you put the weight down on them.But the rest of the table looks super adequate. And your toes and shins will thank you for recessing the legs away from the table edges.
Reply:NICEEEEEEEEEEEEEEEEEEEEEE  !!!  Are you gonna add receiver tubing ? Northern tool had a sale, http://www.northerntool.com/shop/too...=receiver+tubehttp://www.harborfreight.com/18-long...ube-69815.html  harbor freight
Reply:Originally Posted by RuarkWith 4 legs, that would be about 185 pounds per leg. Not too much.  Some 1/4" 2X2 with a little diagonal bracing would be fine, I would think.
Reply:[QUOTE=norite;3466091]x2 on the casters, casters are probably ok but looks like the threaded rod might bend if the caster hits an obstruction.I think you will thank yourself for setting the legs back from the edge of the table, the first time you try to clamp something to it.[/QUOTEThe threaded rod is really 5/8 bolts,hope they will do the job. My table won't ever be moved more than a couple feetgot that idea from here...thanks Originally Posted by BD1NICEEEEEEEEEEEEEEEEEEEEEE  !!!  Are you gonna add receiver tubing ? Northern tool had a sale, http://www.northerntool.com/shop/too...=receiver+tubehttp://www.harborfreight.com/18-long...ube-69815.html  harbor freight
Reply:Originally Posted by Softail Ridergot that idea from here...thanksI got 4 receiver tubes from northern tool, $10 apiecemy coffee table feet as you call them are rated about 5000 lbs each so I'm almost sure they will hold the table. The 5/8 bar across the narrow end  is in the plans. I aint finished yet!
Reply:Originally Posted by docwelderhey! cool your jets. no offence meant. jmvho and you did ask. btw, don't forget the outlet lol
Reply:i was kidding. kinda. you got that heavy duty table with that thick a$$ plate on top and then those flimsy (in proportion) dorm bed levelers. but that's just me. looks good tho. hope you get lots of use from it.i.u.o.e. # 15queens, ny and sunny fla
Reply:If you get tired of it just let me know.