Help with granite counter on frameless cabinets in island
I have KitchenCraft frameless island with 24" and 12" cabinets back to back, with a 3.5 inch pony wall between them. The 24" cabinets will include an 18" trash cabinet, 36 sink base cabinet, 30 inch dishwasher cabinet, and 24" drawer cabinet. Therefore the dimension will be 39.5 x 102. I am putting a 10-12" overhang on the 12" side. If I use 3cm granite from my counter, do I need plywood. Even if I use 2cm granite, should I still use plywood with all this granite? I do not want to use legs or corbels.