I hope everyone is still safe and well. I've been wanting to build a gantry/hoist for some time now for my garage. Of course my garage has limited space so I have to make it so it's not only usable but out of the way when not being used - stowed against a wall. As well, I'm not a welder nor do I have a welder so I decided on using 80/20. I've built a few things with 80/20 over the years and like using their materials. I saw a picture in their purple colored material handling pamphlet on page 33 of one of their customers gantry designs. So I designed one on paper and created a bill of material spreadsheet. Not cheap by any means but nonetheless great for my garage. I have a harbor freight 2000 pound electric hoist I would like to attach to a trolley on the I-Beam for use with the gantry.

The two feet will be 36 inches long of 3030-S with 3 casters under both, two on the ends and one in the middle with a 300 pound rating for each of 6 casters. The two vertical legs will be 73.5 inches high of 3030-S with an 84 inch cross support between them of 1530-S. I will set my I-Beam on this 1530-S cross support. The I-Beam I went with is an American standard beam, ASTM A-36. I've uploaded an attachment for the dimensions of the I-Beam.

A = 5 inches

B = 3.004 inches

C= .326 inches

D= .214 inches

Weight per ft. lbs. = 10

Total length = 84 inches (subtract 6 inches for the two legs gives a total between the legs of 76 inches of usable space)

I have a couple of questions:

1) Would anyone know the usable load the I-Beam can support with the sizing I listed? I'm aiming to be able to lift the most weight I can given the electric hoist lift rating.

2) Seeing I'm going to have to get this I-Beam up on the 1530-S leg cross support, I've seen a scissor lifting attachment in the past that can grab onto the center of an I-Beam and lift it up with a crane of sorts. Anyone know the name of this lifting attachment? I'm looking for a small one that can lift the I-Beam dimensions I listed.

3) I'm not sure which trolley to use considering the I-Beam is also resting on top of a 1.5 inch thick cross support. Any suggestions for a trolley that can handle the 1.826 inch thickness (1.5 + .326)?

Any suggestions on this build would be most helpful. Thank you.

The two feet will be 36 inches long of 3030-S with 3 casters under both, two on the ends and one in the middle with a 300 pound rating for each of 6 casters. The two vertical legs will be 73.5 inches high of 3030-S with an 84 inch cross support between them of 1530-S. I will set my I-Beam on this 1530-S cross support. The I-Beam I went with is an American standard beam, ASTM A-36. I've uploaded an attachment for the dimensions of the I-Beam.

A = 5 inches

B = 3.004 inches

C= .326 inches

D= .214 inches

Weight per ft. lbs. = 10

Total length = 84 inches (subtract 6 inches for the two legs gives a total between the legs of 76 inches of usable space)

I have a couple of questions:

1) Would anyone know the usable load the I-Beam can support with the sizing I listed? I'm aiming to be able to lift the most weight I can given the electric hoist lift rating.

2) Seeing I'm going to have to get this I-Beam up on the 1530-S leg cross support, I've seen a scissor lifting attachment in the past that can grab onto the center of an I-Beam and lift it up with a crane of sorts. Anyone know the name of this lifting attachment? I'm looking for a small one that can lift the I-Beam dimensions I listed.

3) I'm not sure which trolley to use considering the I-Beam is also resting on top of a 1.5 inch thick cross support. Any suggestions for a trolley that can handle the 1.826 inch thickness (1.5 + .326)?

Any suggestions on this build would be most helpful. Thank you.

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