05-06-2012, 08:19 PM
I have a solid wood door with fiberglass facing as my garage fire door. It has self closing hinges with the torsion spring built in. I think there are 3 hinges. You don't need an ugly external arm and failure-prone piston on a heavy door. The hinge springs have an adjustment. Mine just barely swing the door closed and it latches if you let go.