The heavy duty chin up bar will adjust to fit most standard width(28′ to 36″) interior door frames. Before using always make sure that the brackets are properly mounted and the bar is securely adjusted to fit the mounting brackets. Do not use bar in doorways wider than 36″ or without properly mounted brackets.
Mounting hardware will include 4 weight bearing brackets: 2 for mounting high in your door, and 2 for mounting the bar low in the doorway for doing push-ups and sit ups.
300lb weight capacity when properly mounted.