You should have a minimum of 18" between countertop and the bottom of the upper cabinets to allow for appliances as well as enough clearance for food prep. Base cabinets will end up with a height around 36"ht with the countertop. Bar height is usually around 42". Upper cabinets can be 30" in height or taller depending on your ceiling height and whether or not you are taking them up to a ceiling or soffit. Make sure to adjust for crown moulding on the cabinets or wall.

Hi did you finally use nano white? Pl let me know asap as I have to decide for my kitchen. Thanks angela

Hi, I love the look of marbles as kitchen counter tops but am hesitant because of the problems with staining. There are lots of vitrifed glazed floor tiles which give beautiful marble look. Is it advisable to use them as kitchen counter tops? Since they come in 4x2 ft size, the number of joints will be less. Will they be chemically safe around food? Thanks in advance

A McSo. Couldn't the base of 15cm overhang be supported end to end with steel. As a single steel structure mounted on the larger cabinet area visible here. It should be sufficient for supporting the extension. Corbels will provide additional support but IMHO may not be required. Have you thought about an semi circular or a D shape counter to avoid sharp edges. Thanks, Nitin Cornerstone Designs, Bangalore.