GOAL: Hang light grid of 1.5" pipe for new black box spaceRoof/ceiling structure has wooden beams of 4" x 6" dimension to which we want to attach the grid. Current idea is using eyebolts horizontally through beams and chain with shackles from eyebolt to pipe. Grid will not be rigid but that seems ok. Do not want to pierce beams more than needed, do not want to lag vertically up into the beams. Pipe sections weigh 100 lbs each at most. Each section might hold 4-6 instruments. Please bestow wisdom, with my thanks. See More