How to Attach Dishwasher to Granite Countertop

How to Attach Dishwasher to Granite Countertop

You can fit a dishwasher on a typical countertop, by using brackets and screws. Granite, stone,  and marble countertops, however, cannot be tapped or drilled with screws. To prevent them from chipping off or causing further damages to them, you must make use of an adhesive.

This post will teach you the trick that appliance and cabinet makers use to attach dishwasher to granite or stone countertops. 

This is an efficient way to safely secure your dishwasher to your countertop without causing damage to your high-priced countertops. 

attach dishwasher
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How to attach dishwasher to granite countertop.

To install your dishwasher to your granite countertop, attach a three-quarter wide strip of one-quarter inch plywood to your granite countertop. The plywood would be attached to the underside of the granite countertop with the help of an adhesive. After the adhesive must have cured, now attach your dishwasher to the countertop with the aid of an anti-tip.

Steps to Follow to Attach Dishwasher on Granite Countertop

The following concise steps will show you how to have your dishwasher installed on a granite countertop: 

  1. Prepare the Mounting Surface
  2. Locate the Brackets and The Faceplate
  3. Install Plywood Blocks
  4. Position the Dishwasher 
  5. Attach Your Dishwasher to The Granite Countertop 

How to Attach Dishwasher on Granite Countertop — Models with Top Mounting Brackets

Follow these steps to attach dishwasher on the granite countertop.

Prepare the Mounting Surface

How to prepare the granite countertop before you attach a dishwasher.

To prepare the surface of the granite countertop, use an alcohol-based cleaner to fully wipe down the bottom of your countertop. Allow the surface to dry completely.

Locate the Brackets and The Faceplate

How to identify the brackets and faceplates on a dishwasher?

To identify the mounting brackets and faceplates on the dishwasher, open the doors of the dishwasher to reveal the mounting brace (or brackets) of the dishwasher. You will discover two metal buckles on each edge of the front of the dishwasher. Many of them are twisted at 90 degrees, some are twisted a bit more. The metal buckles have holes where the screws go in. 

In some dishwasher models, it might be difficult to access the mounting brackets through the front. If you own some of these models, you will have to access these brackets by removing the lid faceplate from your dishwasher. Some mounting brackets are fixed on a small metal buckle and designed to pop out easily. 

You can try to get the metal bracelets off with your hands by pulling them. But if they do not come off, pop them out with a screwdriver to reveal the brackets.

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Position the Dishwasher 

How to position a dishwasher before installing it.

To position your dishwasher properly before you attach dishwasher to the granite countertop make use of the leveling feet at the base. Adjust the feet of your dishwasher so the top fits under your granite countertop but without making contact with it. Adjust the base to allow the dishwasher to sit balanced on the floor.

If your dishwasher comes with a long electrical wire and hose, it should be possible to connect them at this stage. If otherwise, you can get an extension. Most manufacturers normally make long wires and hoses for this purpose. 

Connect everything and move your dishwasher into a position under the granite countertop. Make a note of the locations where the mounting bracelets will fit at the bottom of the granite top. Use the mounting brackets as a guide. 

Adhesive and Plywood

How to attach dishwasher to granite countertop using an adhesive

To attach dishwasher to granite using an adhesive, move your dishwasher out completely but mind the water hose and the electric cables. Get two slices of double-sided plywood. They should measure three quarters by four-inch. Use a transparent silicone adhesive to smear on one face of the plywood. Stick the plywood to the bottom of the granite top. 

Center the plywood over those marks you made on the underside of the countertop. 

Hold the plywood in place for a few minutes until it sticks to the granite underside. Use a clamp to increase the pressure on the plywood as it cures. Make use of a cloth or a book as a pad to avoid the clamps leaving a scratch on the underside of your granite. Use a wedge or books as an alternative to a clamp. Allow the adhesive to cure for more than twelve hours. 

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Now, Attach Dishwasher to The Granite Countertop 

How to attach dishwasher to granite countertop.

To attach dishwasher to the granite countertop, take out any clamp or wedge you have used to secure the plywood while it was curing. Next, move your dishwasher back in place. Inspect the gap between the cured plywood blocks and the buckles. 

Buckles not within half an inch of the plywood block will be re-adjusted by raising the foot of the dishwasher. Repeat this step till the clip is making contact or at most half an inch from the plywood block. 

As soon as you get a perfect height, move the dishwasher back in place. Use a half-inch screw to fasten the dishwasher to the plywood blocks through the mounting brackets. This secures your dishwasher to your granite or stone countertop. Replace the filler or faceplate.

How to Attach Dishwasher to a Granite Countertop — Models of Dishwashers with Side Mounting Brackets 

For a model that requires side mounting, then follow these steps:

Prepare the Surface

How to prepare the granite countertop surface before you attach dishwasher

Use an alcohol-based cleaning solution to wipe down the surface where you will install the plywood pillow blocks. Let the surface dry completly before applying adhesive.

Locate the Brackets and The Faceplate

How to locate the mounting brackets on your side-mounted dishwasher

To locate your mounting brackets on your side-mounted dishwasher, locate a plastic cap inside the door frame. Many sides mounted models use clips that are mounted to the side of the device. The holes are covered with plastic caps. These models of dishwashers have holes inside the door frame. Take off the plastic caps to reveal the holes where the screws would be fixed. 

Check out these interesting articles from our previous posts:

Plywood Blocks

How to attach dishwasher on a granite countertop using plywood blocks

To install plywood blocks on a granite countertop, mark out where to install the plywood blocks. Use the mounting brackets as guides. After making the marks, center your plywood blocks. Using the silicone glue, adhere the plywood to the side of the countertop. The other side facing the dishwasher should be glue-free.

Allow the glue to set. Move your dishwasher back; see that the plywood blocks allow the dishwasher to sit perfectly.

To attach dishwasher on a countertop completely made from granite or stone, then you must install plywood blocks.

If the sides of your countertop are made of wood, you do not need to install plywood blocks.

How To Attach Dishwasher To The Granite Countertop

To attach dishwasher on your granite countertop, using a screw fix the mounting brackets to the pillow blocks. Cover the mounting brackets. Open the dishwasher a couple of times to make sure it sits perfectly on the countertop and does not tip over when you open it. Run a full wash cycle to ensure you have attached and hooked up the dishwasher properly. 

We hope this post has provided you with the steps required to attach dishwasher properly on a granite or stone countertop. 

If you find this post helpful, kindly leave us a comment.

How to Attach Dishwasher to Granite Countertop — Related FAQs

Do I need plywood under a granite countertop?

You need to place plywood under your granite countertop to properly attach dishwasher on it. This will prevent the need for more expensive fabrication and will limit damage to your expensive countertop materials.

Granite countertops require that you install a ¾” plywood under the countertop. It is on this plywood that your anti-tip clips would be fastened to. If you decide to dill the granite countertop to install the anti-tip clams, you may end up cracking the countertop entirely.

What is used to glue down granite countertops?

An adhesive is used to glue down granite countertops. There are many varieties and brands of adhesive for gluing granite countertops. You can use the Liquid Nail Fuze*It for any granite countertop glue job you want to conduct. It has very amazing features, such as being able to keep bond integrity at extreme temperatures up to 400c and -40c

Click to buy Liquid Nail Fuze*It on Amazon

Other alternatives to the Liquid Nail Fuze*It includes, Liquids Nails Heavy Duty Extreme, Liquid Nails Ultra Quick Grip, Loctite Power Grip Ultimate.

Do you have to glue down granite countertops?

To support your granite countertop and keep it in one place, use an adhesive to adhere to the granite to the wooden cabin. The quantity of adhesive used will largely depend on the size of the countertop. 

Granite is one of the most commonly used materials in making countertops in bathrooms and kitchens. The stone is cut into the shape and size of the cabin in which it is going to be mounted. Now, unlike wood, granite cannot be nailed or screwed. Therefore, to install your granite countertop you must glue the granite to the installed wooden frame. 

Will Liquid Nails work on granite?

Liquid nails work on a lot of materials including granite. Brands such as Liquid Nails Fuze*It, Liquids Nails Heavy Duty Extreme, Liquid Nails Ultra Quick Grip, Loctite Power Grip Ultimate all work effectively on granite.

You can get the Liquid Nails Fuze*It. It has some very amazing capabilities. It can just about glue everything to anything. The quality of the bond is not compromised when exposed to harsh environmental conditions. And if you must, the Fuze*It liquid nail can be used on wet surfaces without compromising bond quality.

Can I install my own granite countertop?

You can install your own granite countertop. To install your granite countertop yourself, you will need to have some basic woodworking skills. Granite countertops that have straight cuts are easier to install as they are less complicated and do not require the use of more advanced tools.

However, you will do some seaming and cutting. With your woodwork skill, you will ace this task easily.

Required Tools for Installing Your Granite Countertop Yourself:

  • Caulk gun
  • Hearing protection
  • Circular saw
  • Level
  • Tape measure
  • Safety glasses
  • Dye diamond blade
  • Granite
  • Polishing compound
  • Seam filler
  • Polishing stone and pad

What is the best granite repair kit?

The best granite repair kit is the Procaliber Granite and Marble Repair Kit – Clear. It is a clear Light-Curing Acrylic ideal for marble, granites, and for other natural stones. The Procaliber Granite and Marble Repair Kit hold sufficient material to be able to carry out more than ten small repairs.

Click to buy Procaliber Granite and Marble Repair Kit on Amazon

Components of the Procaliber Granite and Marble Repair Kit include:

  • 1-gram LCA repair gel syringe
  • 1 LED keychain blue curing light
  • 1 curing strip
  • 1 microfiber polishing cloth
  • Polishing paste packet
  • 2 syringe tips
  • 3 sheets of sandpaper

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