LARGE 2.75" - 4" Steps - 8.25" Deep -- A Pennsylvania Fireback can easily and safely be installed in a hearth by using a pair of Saf -T-Boot fireback supports. The step design enables a fireback to be held upright or at an angle against the back wall of a fireplace. Saf-T-Boots can be used with any cast or wrought iron grate, andirons, or gas log sys-