My 4" granite slab to create a raised hearth has been delayed and my fireplace installation is scheduled for Saturday. I called to reschedule but if I cancel this appointment, it could be a month before they can get here to install. Talking with the granite people and a masonry guy, they've suggested I scrap the original plan to have one piece of granite cutom cut to fit into the fireplace and on the surrounding floor-level brick hearth. Instead, they suggest I backfill the fireplace portion of the hearth floor with 4" of Quikrete, use a temporary 4" support piece of,something outside of the fireplace wall to support the front part of the stove until the granite arrives, then swap out the temp support with the granite slab. I'll admit right now I am not sure how to swap them yet but working on it. I know is,is "unique" but it's being driven by circumstances beyond my control. Any ideas would be greatly appreciated.