Big assumptive leap that we don't cook or invite people over for meals or that I prep directly on the counter top because we can get by with 18x12 plastic cutting boards. You need different cutting boards for raw vs cooked, meat vs desert, ect. Washing in between isn't always enough.
11 1/2 inch plates, broiler pans, serving bowls, Pyrex mixing bowls, pots, pans, ect have all worked for us, our guests and cook ware wase able to fit all fit in previous non tall tub dishwashers. If it ain't broken don't try and fix it.