The ceiling must bear the weight and shock of a heavy bag.
Rarely is mounting a punching bag in the home as certain as attaching it to a conveniently placed steel support beam, especially as so few modern houses are so robustly built. The ceiling of your home gym might be made of flimsy dry wall or may have exposed wood joists, but either way you need to be certain that the ceiling can support the weight and battering of a punching bag before you hang one. The best scenario would be a solid exposed beam. Making a mistake about the sturdiness of your ceiling could pull the ceiling down and potentially undermine the structural soundness of your house.
Instructions
1. Look at the ceiling where you want to mount the punching bag and draw up a list of mounting options for the designs and materials you are working with. If you have exposed wood joists in the ceiling, you can drill a hole in one joist or use a rafter hanger attached to two joists. For a plywood ceiling, you can attach an eye-loop hanger with wood screws, but for a drywall ceiling you must use drywall anchors and screws or molly bolts instead. Alternately, you could drill through a drywall ceiling and mount an eye-loop screw into a wood joist behind it.