Kitchen island overhang thickness

last year

Hello, I am renovating my kitchen and I am going to use a 2cm Ceasarstone quartz countertop. The island will have a 30cm overhang and waterfalls with total dimensions 240x90cm.

Initially on the first offer I got for the kitchen it was suggested to me to use an additional layer just for the overhang underneath the countertop and the inner sides of the waterfalls. So the front of the island will have 2cm thickness and the back 4cm. Their reasoning was that it will look odd that thin standing alone.

Is this a common approach ?

Another company thought that this is not a good approach as we will have additional weight to support and to be done properly you should add the inner layer go all the way to the front.

So I am kinda confused which way should I go with this.

Also I thought the back side of the quartz is not the same with the top's pattern and not something to be exposed but maybe I am wrong here.

Sort by:Oldest

Comments (9)

PRO
HALLETT & Co.
last year
How deep is the overhang? You will always have to do SOMETHING to layer with the quartz because the underside of quartz is not finished- it’s just tough and often has printing. So you can double up the stone or I’ve seen some great ones where they use wood to match the cabinets. Regardless you need some structure- 2cm quartz can only overhang something like 9” without support. Do you have plans you can post?
dan1888
last year
11.8" overhang.
Related Professionals
Ocala Kitchen & Bathroom Designers · Branson Kitchen & Bathroom Designers · Greenville Kitchen & Bathroom Designers · Victoria Kitchen & Bathroom Designers · Augusta Kitchen & Bathroom Designers · Plattsburgh Kitchen & Bathroom Designers · Wausau Kitchen & Bathroom Designers · Eureka Kitchen & Bathroom Designers · Lafayette Kitchen Remodelers · Zanesville Kitchen Remodelers · Kearney Kitchen Remodelers · Gainesville Custom Countertops · Williamsburg Custom Countertops · Olympia Custom Countertops · Vancouver Custom Countertops
PRO
Minardi
last year
ANY overhang, over 6", in 2 cm REQUIRES steel supports built in from your cabinet company. REQUIRES. How you disguise that, with a buildup, is up to your aesthetic sensibilities and the skill of your stone fabricator.
Christos Parliaros thanked Minardi
Christos Parliaros
Original Author
last year
last modified: last year
my mistake I mentioned initially the depth of the overhang at 30cm which is 11.8" as dan1888 mentioned but I was wrong in order to fit completely the stool I decided for a 35cm depth which is 13.8".
Christos Parliaros
Original Author
last year
sorry for the metric system
Christos Parliaros
Original Author
last year
to my eye 2cm thickness for the exposed stone of the overhang seems a bit thin and either I will have to add an inner layer of the stone or maybe use wood. I am open to opinions and suggestions.
PRO
Minardi
last year
last modified: last year
You either spend money for wood or stone. A stone fabricator, or a cabinet maker. Who has the greater skill set? And you must have steel. Always steel. I personally like the thinner stone look, as a more modern thing. But, this is your house, so do you like wood or stone?
Christos Parliaros
Original Author
last year
Well at the back of the cabinets will have the a cover using of the two materials for our cabinet doors either wood (real oak veneer) or off-white (lacquer), most likely the wood one so the question if I should use the wood (if not stone) to cover the inner side of the overhang as in the picture above. Today I had a minute with the distributors of Ceasarstone here in my location and they mentioned that the underside of their quartz can be polished or something which I am not sure if this helps as what I selected is honed. So you dont think that 2cm stone for the overhang is too thin for that size of island ?
PRO
Joseph Corlett, LLC
last year
That cantilever must have additional support that isn't plywood or more engineered stone. I'd recommend square tube steel or aluminum, particularly with a span that long. However it's done, the finished substrate must not allow any sagging over time as that will cause the waterfall miters to self destruct.

If you can't walk across your substrate, it is inadequate. The substrate is the countertop; the engineered stone is simply nonstructural veneer that makes it pretty and functional.