How to mount a countertop microwave under cabinet

Are you looking for a way to free up counter space and give your kitchen a sleek, modern look? Installing a countertop microwave under a cabinet is an easy and convenient solution that can help you get the most out of your kitchen.

This blog post will provide detailed instructions on how to mount a countertop microwave under cabinet, so you can enjoy the benefits of this stylish upgrade. So let’s get started!

Why mount a countertop microwave under a cabinet?

Mounting a countertop microwave under a cabinet is a smart and practical decision that can save valuable counter space in any kitchen. By doing so, you can keep your microwave at just the right height and out of the way while cooking or performing other tasks.

This not only creates a cleaner, more organized appearance, but also allows you to maximize your limited countertop real estate for food preparation and cooking.

Furthermore, installing a mounted microwave can also provide a more efficient ventilation system and improve the overall safety of your kitchen by reducing the risk of accidental spills or burns.

In the end, choosing to mount your microwave is a sound investment that can elevate the functionality and style of your home's culinary hub.

The installation process

Installing a countertop microwave under a cabinet can save you valuable counter space while also making your kitchen appear more organized. The installation process may seem daunting, but with the right tools and guidance, it can be a smooth and simple task.

First, ensure that your microwave is suitable for under-cabinet installation and measure the dimensions of both the microwave and the cabinet space. You will need to secure a mounting plate to the bottom of the cabinet, which will support the weight of the microwave.

Then, attach the microwave to the mounting plate according to manufacturer instructions. It is important to take proper safety precautions during this process, such as turning off the power supply and seeking assistance if you are uncomfortable with handling heavy objects.

Materials Needed for Installation

General tools needed for any installation project

Before beginning your installation, it is essential to have the proper supplies and tools.

You will need a drill, screwdriver, level, measuring tape, stud finder (if applicable), mounting plate for the microwave, screws for attaching the plate to the cabinet, and appropriate hardware for securing the microwave.

It is also important to have an assistant help you with the installation, especially if you are handling a larger microwave.

Specific materials needed for under-cabinet installations

For an under-cabinet installation, you will need to attach the mounting plate to the bottom of the cabinet. The size and type of screws necessary will depend on your particular cabinet material.

For most wooden cabinets, 1/4-inch screws are suitable. However, for metal cabinets you may need to use self-tapping screws or bolts.

Additionally, if you are mounting a heavier microwave, it is recommended to install additional support brackets to the side of the cabinet as an extra precaution.

Step-by-Step Guide for Installation

Prepare the space and make sure it can safely accommodate installation

Before beginning the installation process, it is essential to make sure the space can accommodate your microwave.

Measure the dimensions of both the cabinet and microwave and check that they are suitable for an under-cabinet installation.

It is also important to be mindful of any obstacles or obstructions that may interfere with mounting.

For example, if you are mounting the microwave over an oven range, make sure that there is enough clearance between them.

Install the mounting bracket securely to the cabinet or wall

Now, it is time to install the mounting plate.

First, use a level and stud finder to ensure that the bracket is properly aligned and secured.

With your assistant’s help, attach the brackets directly to the cabinet or wall according to manufacturer instructions.

Be sure to use screws appropriate for your particular cabinet material as well as any additional support brackets if needed.

Securely attach the microwave to the bracket using appropriate screws 

Make sure that all power sources are turned off before handling any electrical appliances.

With your assistant’s help, carefully raise the microwave onto the mounting plate and secure it with screws or bolts according to manufacturer instructions. Once secure, plug in the appliance and test for proper operation.

Connect power supply to electrical outlet following manufacturer’s instructions

Lastly, connect the power cord to an appropriate electrical outlet. Depending on your microwave, it may require a dedicated circuit with an outlet that can handle up to 15 amps of current.

Be sure to check the manufacturer’s instructions for specific wiring requirements. Once connected, test all functions and make sure the fan is operating properly.

Troubleshooting Frequently Encountered Problems

Make sure the bracket is securely attached and the microwave is level

If the microwave appears off-balance or unstable after installation, double check to make sure that the bracket is securely attached and aligned properly.

Additionally, if your cabinet has a kick plate below it, make sure the mounting plate is still secure.

Check to make sure power supply and electrical outlet are properly connected

If your microwave is not receiving power, make sure that the power cord is securely connected to the electrical outlet and that it does not have any frayed wires.

Additionally, check the circuit breaker to ensure that it has not been tripped. If all else fails, contact a professional electrician for further assistance.


Mounting a microwave under the cabinet is an easy way to free up counter space and create a more organized kitchen. With this step-by-step guide, you can be sure that your installation is done correctly and safely.

Keep in mind any extra precautions necessary for heavier microwaves or metal cabinets. If all else fails, contact a professional for expert guidance and assistance. With proper installation, your microwave should be functioning properly in no time.

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