You should ask the supplier. And it depends on thickness and substrate.

Derek Hurd

Gravitas, Inc.

112 E 33rd St.

Garden City, ID 83714

208.367.1184

www.gravitaslc.com

yeah, my first thought was that you'd need steel bracing extending out from the cabinetry to the legs, and possible extending out to the other overhang. I'd consult with the stone yard -- they usually have a good sense of their materials.

Thanks

Its 30cm thick and the width between Island and legs will be 36".

My GC thinks the 11" overhang on the long side of things is no problem but we can add later if fabricator advises. I talked to him today. He has quartz himself ( not quartzite) and ran an 18" overhang for a 10ft span only supported at the opposite ends of the 10ft.

"He has quartz himself ( not quartzite) and ran an 18" overhang for a 10ft span only supported at the opposite ends of the 10ft."

That's gonna sag. It'll take a few years, but it's coming. Quartz manufacturers only allow 15" unsupported 3cm cantilevers. 10" for natural stone.

I'd fab and install some steel square tube were I you. If you wouldn't dance a Conga line across your substrate before the top is installed, it's inadequate.

Understood....but I should have said his is 6cm.

I may run some cobels on mine with 11" anyways. I'll see what the fab says when he installs. I had cobels with a corian top previously. Can update with something more modern.

I'll reach out to the supplier tomorrow.

Mike: You want the advice of a manufacturer or a trade association, someone without a dog in this fight. Fabricators look to be as competitive as possible and are too often afraid to charge customers for what really needs to be done. I've fixed a ton of their mistakes.