So I want to put a swing in my studio for portraits, the ceiling is a drop one so I cant attach the hooks directly to that, and I rent the space so I dont want to put massive hooks in the walls leaving 1/2" holes. the plan is to build a frame out of 2x4's on both sides of the studio, and run two 2x4x12' boards across the room, and then put the swing on that. I want to make the swing rotate so I can adjust their position since I have a narrow space for a background. The idea is to put a 7" bolt through the two boards and into a shorter piece of wood that will be attached to the swing itself. Putting a 1/2" hole in the two boards will weaken the boards and prevent me from putting the boards vertically. I am wondering if the 2x4x12' boards will be strong enough to hold the weight of your average senior girl. Anyone have any experience with this sort of thing? does this even make sense? Its 4am, hehe.