Bring quality to your home with a Bosch gas cooktop. Do you want to build in the hob? First check the dimensions of the opening in your kitchen counter before selecting a built-in gas cooktop by Bosch. You can't build in a freestanding Bosch gas cooktop, but you can place it on the counter. The advantage is that you don't need an opening in your kitchen counter, but it doesn't look as sleek.