Greetings, I need to build a couple of jib cranes for my shop. My initial web search found sights of merchants offering cranes for sale. I don't want to play games with them to get specs to build my own. I need to find a free source of engineering specs for 1 to 2 ton jib cranes, wall or floor mounted with foundation plans. Anyone know of a good source? Back to my search. Thanks. Regards, Bill Woolley