Hoist?

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I need to build a hoist in the back yard.  I was planning on purchasing a 2 ton trolley and chain hoist but I think I am going to go with 3 ton.  I really don’t think I will ever need anything bigger than 2 ton but I figured 3 ton would be a better margin of error.  Anyway this hoist will be 8-10 feet wide.  I have not done the actual measurements yet.  I want to be able to easily pull a pick up or trailer under it to load or unload if I need to.  With that said what size I-beam should I use for the top of the hoist?  Thanks
Reply:You might browse thru Wallace Cranes site and look at what they call out for the beam sizes. Keep in mind just because a beam is 6" tall, there are several weights that fall in that category. Heavier beams will take more load than lighter beams the same height. Taller beams usually will carry more weight than smaller beams even if they weigh the same. When in doubt, go taller.There are commercial charts out there that do list beam sizes based on spans and point loads, but most of the ones I have all show uniform loads like for floor joists/beams.http://www.wallacecranes.com/.No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Yep, on the WALLACE. Great info there. The 2 ton and 3 ton chain fall is gonna be really slow for raising and lowering if that is a consideration. Actually ,I got a 1/2 ton and a one ton chain fall. The 1/2 ton is super fast compared to the one ton. Now a 5 ton, it takes days to raise and lower. Not really bit it is a lot of work to go up a foot.
Reply:Harrington Hoists beam size chart:http://www.harringtonhoists.com/tech...67%20rev01.pdf"USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder