INSTALLING CORBELS TO SUPPORT A BAR TOP:
Once the frame has been leveled and skinned, the corbels will be bolted to the frame, flush to the concrete board. The tabs/fins of the corbels will bolt intermittently to the uprights of the bar frame. This will require cutting slices in the cement board where the fins will slide in, and drilling holes in the frame uprights to run bolts through.
Begin at one end, using a level to ensure the top of the corbel is flush with the top of the bar frame. Repeat the process at the opposite end of the bar, using a string line to maintain level as you install the remainder of the corbels.