I have read that you can support a granite overhang (such as a bar) using 1/4" steel bars below or embedded in the rough top. However, given the 3/4" MDF rough top, I find that the 1/4" steel bars are more flexible than the MDF. My intention was to use a power planer to cut channels into the rough top... Standard Overhang: Kitchen Island Countertop Standard Overhang: Raised Bar Top There are standard measurements that guide how long and wide a kitchen countertop should be. How To Install Supports for an Overhang or Kitchen Island. Overhangs like those found on

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standard kitchen bar counter overhang