When we decided to install a gas fireplace I needed to come up with a design for a mantle. I got lucky with a find that worked out nicely. At an auction I bought an old cast iron fireplace surround. I shopped for a gas fireplace unit that would fit into the the opening in the surround. I built the oak mantle and added the stone between the cast iron and wood. The corbels are help up with magnets and drop down on dovetailed brackets to access the ON/Off switch on the left and the fan speed control switch on the right.