anchor quartz counter top-how?

[robertglines1]

I have a quartz counter top I plan on using in kitchen approx 10 ft long L shaped and 2ft wide 1 1/2 inch thick approx weight 350lbs..so other than fastening to cabinets that are fastened to shell should there be another anchor and how?thoughts I have had is a couple of cables fastened to steel wall members. and making sure forward end is against a solid stop...use turn buckles in stead of cables???how to anchor to counter top??blocks fastened to bottom? adhesive or mechanical?.should I have downward force to hold counter top down or in place????if I never run Thur a ditch or hit a curb or didn't drive bus it would not be a issue...Ideals please      Bob

[luvrbus]

Bob, wood strips with a good adhesive on the stone then screw to the cabinets it won't go anywhere 


good luck

[bevans6]

If  I get you right, you are thinking the cabinets themselves aren't going to be strong enough?  i think adhesive is good to hold it to the cabinets, stronger than mechanical fasteners in thin stone probably, but only you can decide if you built the cabinet's strong enough to hold it in a crash situation.  This is one reason i don't favour stone counter-tops - if a 10G deceleration decides to come along, is that cabinet going to hold back a couple of tons worth of stone that really really wants to continue moving forward at 65 mph?  I think not...

Edit: my thought is that 350 lbs of stone under the influence of a 10G deceleration, which is pretty mild in front crash terms, quite survivable, becomes the equivalent of 3500 lbs of stone, and nothing I can think of is going to stop it going anywhere it feels like inside a bus.  Mechanical fasteners into 1.5" stone, maybe 1" of penetration, are going to be quite low strength, you could knock one out with a 16oz hammer, since stone is so brittle.  I would just use formica and pretend it's stone...but I have this imagination that keeps seeing me driving under trucks on the freeway, brakes failing at the top of every hill, one race track I go to (VIR) has a back straight that I am positive I am going to die a fiery death every single lap.... Just the way I think.

Brian

[robertglines1]

me and my two sons moved it so can't be two heavy maybe 350 ish...will install with motion in mind and over build on safety in..stone is 1 1/2 inch thick..has slots routed in it for under sink installation maybe a safety anchor attached there and around faucet below counter top..

[BG6]

my thought is that 350 lbs of stone under the influence of a 10G deceleration, which is pretty mild in front crash terms, quite survivable, becomes the equivalent of 3500 lbs of stone, and nothing I can think of is going to stop it going anywhere it feels like inside a bus. 

You can pick up a hammer and carry it around all day.  If you push a hammer with all of your strength, it has a lot less energy than if you let it build up some speed.

If you properly secure the counter and the cabinets, you prevent them from developing any more energy than the rest of the coach has, and that energy is bled away as the coach stops, even in a collision.  Remember those WWII films of Navy planes crashing on aircraft carriers?  Those are mostly Grummans, because Grumman intentionally designed their planes to come apart in order to channel the energy of a crash away from the cockpit -- and the pilot.  Grumman knew that they could supply planes a lot faster than the Navy could replace pilots.

"Properly" means securing the cabinets not only to the floor, but also to the wall, using the best glue to secure the top to the cabinet, then gluing wooden gussets to increase the surface area of the bond.

[letz4wheel]

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