I have seen a lot of pictured of kitchen islands with the Finished end panels that extend the length of the countertop. Are these functional in supporting the weight of the countertop (in cases where the overhang is longer than 12”) or is it purely decorative? I am trying to decide how long I want my countertop to be and what I could do to support It. I realize I could go talk to the countertop supplier but I’m not at that stage yet of buying a countertop and everyone is appointment only right now due to pandemic. Just hoping someone here knows the answer. Thanks!