Support for kitchen peninsula 15 inch granite countertop overhang
Hi everyone, I am having 3 cm granite countertops installed in about three weeks. We have a peninsula that will also serve as a breakfast area. The granite there will have 38 cm (15 inches) of overhang over a span of 135 cm (51 inches).
I'm a little nervous because here in Germany, kitchens don't usually have this type of overhang, and most professionals we talk to have never done it before (most people here usually want less than 10 inches of overhang for their bars. We feel like we have plenty of room and would like lots of space for the kids to sit, eat, do homework, etc.
Our kitchen installers only planned for 12 inches of overhang (which they were going to leave unsupported), we told them during installation that we had requested 15, and that we understood that it would have to be supported somehow. They only suggested adding a single leg under one corner (on the left side), since the opposite side can be supported at the wall (it's a peninsula). Their suggestion made me nervous, and makes me wonder if a single leg is enough.
I am getting ready to suggest that we do two columns with stretcher bars (like a table), attached to the peninsula. But, since this is my own idea, i am still wondering if it will be enough to be 100% safe.
I am including two photos, one of the kitchen island view, and the second of the columns/apron setup I'm thinking about.
Could someone weigh in as to whether the setup is viable and safe? We have small children (under 5) and need this to be super safe.
Do bear in mind that this is Germany. Most kitchen places have not even heard of invisible steel supports or anything elaborate like that. This is why I thought of legs/apron for this, since any carpenter can produce them readily.
The columns would be about 11 cm square (4 5/16 inch). In my thinking the apron would consist of 8 x 5 cm lumber (3 1/8 x 2 inches). The whole thing would be attached to the peninsula.
Comments (11)
6 years ago- 6 years ago
Related Discussions
15" Granite Counter Overhang Supports
Comments (15)You'll need new skins, wider than 48''. Detach the full height cabinets under the proposed overhang. Attach 2 2x4 pressure treated pieces of lumber to the slab with a Hilti or ramset where I show the RED lines. Also use some construction adhesive. Yes, I like belts and suspenders. :) Build a 34.5''H pony walls with conventional framing techniques, taking the wall to the end of the cabinets. Attach the existing cabinets to the pony wall. Reattach the full height cabinets to the pony wall studs. Here is where you will need the custom steel for the 33'' long steel pieces (BLUE) needed to support the overhang. You will also need 12'' ones for the side overhang. They cannot be flat steel, as that is too flexible. 1'' tubing is too thick for your full overlay cabinets, even with the doors adjusted as far down as they will go. You could use 2''W flat 1/4" steel with a 3/8'' ridge welded to it to create rigidity, in a T shape, flat side up. Holes would need to be drilled into it to attach to the pony wall. Once the steel is sourced and created, you can rout out the pony wall (2 step process, once for the ridge, once for the flat stock) and top of the face frame to accept it. Once the steel is attached, then the skins (GREEN) can be applied to the sides and ends to cover the pony wall. You may want some Outside Corner molding and Batten molding as well to hide the seams. This is a serious design deficiency on your KD's part. He should arrange for the cabinetry materials gratis, and also pay something toward the steel. Labor for this will need to have good experience dealing with finished cabinets and routing, so let the KD pay something towrds that as well....See MoreWill I need support for my granite counter where it overhangs seating?
Comments (3)Yes, you will still need support. Check the "Stone Information and Advice" thread for more information, but to summarize.... countertop support: Supporting the width of the countertop: You need a corbel or support every 30 linear inches of unsupported overhang Supporting the depth of the countertop: General: You need to support at least 2/3 the entire depth of the stone, so assuming you have 24" deep cabinets on one side of the island and your seating overhang is on the other side, you need the following: If your granite is 2 cm thick, then there can be no more then 6" of of unsupported span with a 5/8" subtop If your granite is 3 cm thick, then there can be no more then 10" of unsupported span - no subtop required If you need support, then to determine your corbel dimensions: . Thickness of Stone - Dimension of Unsupported Span = Corbel Dimension . i.e., an 18" total overhang in 2 cm would require a 12" corbel; the same overhang in 3 cm would require an 8" corbel If you are using a pony wall or cabinets with a depth of less than 2 times the depth of the overhang, then you need to provide support to equal at least 2/3 of the total depth of the countertop....See MoreCounter overhang supports for Ikea Cabinets?
Comments (15)This has really turned into a mixed topic thread - but I'm back to the original overhang support issue. I checked out the supports in the link Katrina posted and Joe said he thought were good. They all require notching the top edge of the cabinet. With IKEA, there is that metal bar that spans the tops of their base cabinets from side to side in the front as well as the back. That's what actually supports the counter and it obviously can't be notched. So I'm back to my original idea which was to run a steel tube bar across the span supported by pony walls on each end of the overhang. (Joe said the fabricator could even embed this into the solid surface but I'm not sure I would bother with that). I would put bar about 6 inches from the edge of the counter - midway of the 12" overhang depth. I understand that we need to be sure the top edge of the bar is perfectly flush with the top edge of the counter supports on the cabinets (those pesky metal bars that IKEA uses on top of the base cabinets). Is there any reason that wouldn't work? I am trying to contact my fabricator to discuss this, but in the area where I am doing this kitchen, there are no nearby IKEA's so I'm pretty sure he wont even understand how IKEA cabinets are made....See MoreHow to support granite counter overhang w/ a front facing cabinet belo
Comments (5)Sorry Sophie. I'm out of the house due to renovations and had connectivity issues. I'm uploading a picture of the peninsula (long side and short side) and an overall layout for the kitchen. The issue is the left side cabinet under the long side opens under the peninsula, and the right side cabinet open on the side without the overhang. So I hang hang brackets on the right side cabinet back, but am concerned about the space between bracket at the very end of the left side which will be attached to the wall. It's then 24" until the back of the right cabinet. Sorry -for the duplicates - this is the short side panel that will have a corner angle bracket and no issue because all brackets can be affixed to the back of the cabinet below. This is a copy of the long side of the peninsula, where the cabinet opens under the underhang. The far left will have a bracket mounted to the wall. Any way to have a bracket before the 21" cabinet that is next ends?? with a 3" filler I'm worried that with such a deep overhang its weak to go so long without a bracket. Thanks, R...See MoreRelated Professionals
Grafton Kitchen & Bathroom Designers · New Castle Kitchen & Bathroom Designers · Queen Creek Kitchen & Bathroom Designers · Ridgewood Kitchen & Bathroom Designers · Bloomingdale Kitchen & Bathroom Remodelers · Fremont Kitchen & Bathroom Remodelers · Paducah Kitchen & Bathroom Remodelers · Rochester Kitchen & Bathroom Remodelers · Schiller Park Kitchen & Bathroom Remodelers · Mountain Top Kitchen & Bathroom Remodelers · Lakeside Cabinets & Cabinetry · Middletown Cabinets & Cabinetry · Brookline Tile and Stone Contractors · Pendleton Tile and Stone Contractors · Mililani Town Design-Build Firms
PRO6 years ago
6 years ago- 6 years ago
- 6 years ago
- PRO6 years ago
- 6 years agolast modified: 6 years ago
- 6 years ago
- PRO6 years ago
User