Undermount sink brackets installed correctly??

[naturemanmh]

I just had granite countertops installed in my kitchen. I have had some issues with the job quality....

One of the issues is the way the sink was bracketed. He used 2 clips on the left corners and then used pieces of scrap wood for the 2 right corners. I see he did this because he did not have much room on the right side. I just am concerned it is not well supported. Thoughts?

[Andy Ross]

Legit as long as the wood is screwed in good.

[tim farr]

I would trust the wood as much as if not more than the brackets

[Dan R.]

Same as Tim and Andy stated.

[Demetri]

Those sinks are heavy. Does the sink move when given good pressure? If not, don't sweat it. (wait til the silicone drys)

[luke getz]

sometimes as fabricators we have to get creative to get the job done, thats what we get paid to do, and it looks like he came up with a solution that should work well. I have had to use different mounting methods on the same sink many times because of space issues.

[Alex DiPietro]

I like that technique of using an extra piece of wood at the top to be able to support the sink when the space is larger than the width of the wood being used. Your good. I may even show this to my installers. Super simple easy and strong.

[Jeff H.]

What are the problems with "job quality"? So far you have posted 2 sink questions that are standard practice in this industry. I may be wrong, but it seems you are trying to find something to go back to the fabricator for some reason. Are there any other issues with your job?

[markplaza]

That's fine too. When the silicone sets it's not going as any where. Enjoy your new countertops.

Mark Plaza
San Jose Stoneworks

[Kowboy]

That's fine too. When the silicone sets it's not going as any where. Enjoy your new countertops.

Mark Plaza
San Jose Stoneworks

While silicone does have adhesive quality, it's use here should be that of a gasket only. Sinks must be mechanically fastened.

[markplaza]

Thanks. It is mechanically fastened.

Mark Plaza

[Stone Dude]

This is how we do most of ours and we haven't had one fall out. It's not pretty, but it's all mechanically fastened and I wouldn't worry about it.

[Caleb]

I bet those wood braces hold more than the metal brackets! (The sink in my personal house is supported with wooden braces also!)

[northernrocktops]

I bet those wood braces hold more than the metal brackets! (The sink in my personal house is supported with wooden braces also!)

X2

[Steve A]

I would be proud to have such a creative installer working for me, and confident that he would do the job right. That picture speaks a lot to the installers experience and know-how. He could have easily cheated, skipping the wood supports and let the silicone do the the heavy work. Would it have worked? Probably long enough for them to get paid and then likely fail in a year or two. He did what he could to ensure the sink will stay in place.

Relax and enjoy your new kitchen.

[lovegranite]

You must be satisfied with all the responses. What are your other "quality issues?"

[innstone]

This should more than work. Keep in mind that a #10 wood screw has a sheer limit of about 500 lbs! That is per screw and not counting any adhesive.

[Kowboy]

IMG_4855.jpg (343.44KiB)Viewed 913 times

This week when I fixed this, I found four of these trying to hold up the sink:

IMG_4857.jpg (309.82KiB)Viewed 913 times

I find rusted clips constantly. Due to space limitations, clips can't be mounted between the sink and the back of the cabinet front where they're most needed. When I'm not finding polyester gobs on wood shims/stone scraps bridging the flange and stone bottom, it's sticks screwed to cabinet sides as pictured.

Sinks need to be strapped.

[crisco]

using stilts is a first choice for me. when cut and secured correctly, with the right positioning, no one can tell the are used unless you get your head under there and look back towards the front inside cabinet. its a permanent solution as long as your cabinets don't collapse. and the sink would have dislodged anyway if all your cabinets collapsed from the weight of stone.

I would hire that installer for my jobs. no doubt.

KowBoy,

That crack in the pic is from rodding, where the flowing resin was mixed with too much hardener and the rapid heat and expansion slowly separated a naturally occurring oblique slip, (on a smaller scale) resulting in a sub critical crack growth. i suggest you alert your superiors and inform them of this issue, as they may be very pleased.

[Kowboy]

KowBoy,
That crack in the pic is from rodding, where the flowing resin was mixed with too much hardener and the rapid heat and expansion slowly separated a naturally occurring oblique slip, (on a smaller scale) resulting in a sub critical crack growth.

crisco:

Respectfully, the poor sink mounting put too much stress on the silicone. It failed and leaked, dumping water from the sink flange onto the polyester rod bedding that wasn't water resistant. This allowed the rod to oxidize and expand, cracking the stone. My theory fits much more with the customer's experience than does yours. If it were improper hardener this crack should have developed nearly immediately, not a decade after installation.

It doesn't take much rust to crack stone. The rod I removed looked just like this one:

IMG_4621.jpg (366.92KiB)Viewed 898 times

Epoxies shrink, not expand, when they cure:

“Faster, high temperature cures enable chemical cross-links to form faster and more completely. This generally results in higher shrinkage than lower temperatures. In many cases, this shrinkage can provide benefit. For instance, thermal conductivity and electrical conductivity can be enhanced as explained above.”
http://www.epotek.com/site/files/brochu ... _Final.pdf

[crisco]

true that my friend. i forgot about people using steel in rodding. haven't seen it in a decade. also i just made up all that geological non-sense to troll ya. good work on the sink job.

i think the installation of this sink is more than sufficient and the hole placement is well within industry standards. i also believe the sales on this job mishandled the client. i believe the client may have an acute anxiety about being oversold on commitments or quality of the materials/labor. I have learned that there are many types of people that expect different things. in sales, if you want a decent reputation, the easiest way to go is to explain as much as possible, and to get the clearest picture of what your client is expecting. if the client is particular to detail, they too should always require any details be duly noted by sales, sales then thoroughly communicates to production and installation.

but hey thats my take.