[Steve149]

Ok guys, as with all things winter I am getting cabin fever already and we have a ways to go. I am building a new shop come spring/summer and once the shop is done the back portion of it will be my welding and general rippin and tearin section for the cubs. I would like to put an I beam across the span to put a trolly and chain fall in place. The span of that portion of the shop is like 16' and my thoughts were to get two pieces of like 4 or 5 inch pipe and weld plates top and bottom then weld a few outriggers on it for stability. My question is for that span what size IBeam would be ok. now keep in mind I am not gonna be pulling engines out of a truck with this but I do want it heavy enough to handle lifting the tractor up if need be. Thoughts? Ideas? at this point I am open to suggestions!