Where I volunteer has a large metal storage building. The building has
3 entrances, 2 large roll up doors and a heavy metal door set in a metal frame. Both roll up doors are kept secured by sliding pins through the tracks. Now to the problem, the door knob has become impossible to turn and the door cannot be opened. Door swings inward and hinge pins are not accessible. What is the easiest way to open the door and cause the least amount of damage to door, frame or building?Thanks and all solutions will be be considered.