Kitchen Design/Remodeling/peninsula off island


I am creating a peninsula off a cabinet island (66x24.5) with the peninsula jetting out 36" from the back of the cabinet and the width representing 1/2 the island or 33".  I am using silestone and know they will be using the .75" thinkness with the plywood support underneath (laminated bullnose edge).  I know I need additional support for the peninsula counter and plan on putting in a pedestal support.  I am trying to figure out the necessary diameter of the pedestal needed.  Any guidance is MUCH appreciated.  Thank you.

Hi Robyn,
If I understand you correctly, you are adding a piece to an existing countertop with no supporting cabinet underneath?
If so, you need a support that is sufficient in size, and also not easily kicked out from where it attaches to the floor. I would suggest something at least 3"x3" or larger. The weight is not really as much of an issue, rather how it connects to existing counter, along with the design of the support post you are proposing.
Any more details will help with this analysis.

Kitchen Design/Remodeling

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Torin Dixon


All questions regarding fabrication and installation of natural stone tile and slab countertops, flooring, backsplash. All questions related to cleaning, sealing and stain removal of natural stone surfaces. All questions on importing process and selection of natural stone slabs and pricing issues. Granite, Marble, Limestone, Slate, Travertine, Onyx, Tile, Quartz countertops, Silestone, Eco Cannot answer questions on cabinet construction


Expert in traditional hand methods of natural stone fabrication. Expert in modern manufacturing techniques using latest machinery and equipment. Consultant of shop layout, design, and workflow analysis. Consultant of job costing, pricing structures, bidding processes of natural stone fabrication manufacturing. Expert in specifying stone maintenance cleaners and sealers Expert in stone restoration, stain removal and damage repair.

Former Vice Chairman of the Missoula Design Review Board advisory committee to the City of Missoula, Montana City Council National Association of Home Builders member Missoula Building Industry Association member Billings Home Builders Association member Bitterroot Building Association member Marble Institute of America member President-Tyler Boshae Foundation President-Club Twitch

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