We used a basic tripod arrangement to hoist the swept oak beams up to the wall plate. The mechanism had to be easily controllable and very safe so that it could all be done in one day, with assistance from people who had no previous experience. This can be achieved by pre-cutting and fitting as much as possible in advance. We used 10mm rope, a block and tackle, three spruce poles roped together at the apex and also tied off at the bottom so the tripod legs can’t slip. You want to have sufficient mechanical advantage in your pulleys so that one person can operate the pulley and be able to have a hand free to tie off. When timber is in the air it is important to have clear instruction from one person.