How to Install a Microwave

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Mounting your microwave under a cabinet or on a shelf can save a lot of counter space if you follow the instructions correctly. For a microwave hood combo, refer to Install an Over The Range Microwave . For the specific GE model, see How to Install a GE Built-In Microwave Oven.

How to Mount a Microwave Underneath a Cabinet

Secure the mounting plate to the studs in the wall under the cabinet and set it so the top edge touches the bottom of the cabinet. Drill a 2 inch (5 cm) wide hole for the power cord into the bottom of the cabinet (or another location so the cord can reach an outlet). Slide the microwave onto the mount and secure it.

Method 1
Method 1 of 2:

Mount an Under Cabinet Microwave

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  1. A recirculating or front-venting microwave can be installed beneath a counter without any further effort. Other types may require more advanced ventilation installation. Be aware of the requirements of your model before you begin installation.
  2. Follow these methods for finding and marking these vertical wall supports. Your microwave will need to be fastened to at least one of them. [1]
    • If you have one, use an electronic or magnetic stud finder to search for nails.
    • Alternately, tap lightly on the wall with a hammer. When you hear a solid "thunk" instead of a hollow sound, you've likely found a wall stud.
    • If you're not certain whether you've found a stud, drill a test hole and use a bent wire or coat hanger to search for solid objects in your wall. [2]
    • Once you've located the center of one wall stud, its closest neighbors are usually located either 16 inches or 24 inches to each side. [3]
    • Use a small nail to probe the wall stud(s) and determine the width.
    • Draw a vertical line down the center of the wall studs once you've found them.
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  3. This flat metal plate should be level and the top tabs should butt against the base of the cabinet or cabinet frame. [4]
    • If your microwave came with a wall template, tape that instead as a drilling guide before you attach the plate.
    • Use a level to ensure your microwave isn't installed at a slant.
    • Remove any decorative trimming from the cabinet preventing you from placing the mounting plate correctly.
    • If the front of the cabinet has an overhang, place the mounting plate below the back of the cabinet by an equal amount. Otherwise the overhang will block access to the microwave. For a microwave that requires base-of-cabinet attachments, you may need to saw off the overhang instead.
  4. [5] Follow these steps to determine which size holes to drill and where.
    • The bottom edge of the plate should have an area covered in holes. Use a marker to draw circles in at least two holes. At least one should be completely over a wall stud to support the microwave's weight.
    • Locate the two or more holes along the upper edge of the microwave. Fill in these with a marker as well.
    • Remove the mounting plate. Use the circles you drew as a guide, not the mounting plate.
    • Drill a 3/16" (5mm) hole through any circle located on a wall stud. [6]
    • Drill a 3/8" (10mm) hole through any other circle.
    • If your microwave came with a top template, tape it to the base of the cabinet above and drill 3/8"(10mm) holes through attachment points where directed to fasten the microwave to the cabinet base.
  5. If your microwave came with a base of cabinet template, tape this where the microwave top will be located and drill where instructed for the power cord. Otherwise, select a spot easily accessible by the power cord and out of the way of normal cabinet function.
  6. Have an assistant hold the mounting plate securely in the correct position as you fasten it to the wall.
    • Use lag screws (lag bolts) in the 3/16"(5mm) holes. These will bear most of the microwave's weight, which is why they are used over the wall studs.
    • Use toggle screws (toggle bolts) in the 3/8"(10mm) holes. The "wings" of the toggle screw go through the hole and pull against the wall as the screw is tightened. Pull the mounting plate toward you while tightening toggle screws.
  7. With an assistant's help, hang the microwave onto the support tabs on the mounting plate's base. [7]
    • Snake the power cable through the hole drilled for this purpose before attaching the microwave.
    • Fasten the microwave to the base of the cabinet above using screws where directed on the top template. Tighten until the top of the microwave and the base of the cabinet are flush.
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Method 2
Method 2 of 2:

Installing a Countertop Microwave on a Cabinet or Shelf

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  1. You don't need a special model of microwave to place it on a shelf, but you do need to know where the vents are for proper installation
    • Countertop models usually have vents on the sides and top of the microwave, but back panel vents are common as well.
    • If you are having trouble finding the vents, place the microwave on a table, plug it in, and heat food or liquid inside. Place your hand near each side of the microwave to feel for blowing air.
  2. This is especially wise if your cabinet is high up, since the table can easily fall out of the microwave during lifting.
  3. Make sure the vents are not flush against any surfaces or objects. There should be at least an inch of space next to each vent.
  4. If the cord will not reach or is in an inconvenient location, temporarily remove the microwave and drill a small hole in the cabinet or shelf to snake the cord through.
  5. Because the cabinet does not allow as much air movement around the vents, dust will gradually build up and increase the risk of fire.
    • Wipe the vents with a damp cloth while the microwave is turned off.
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Expert Q&A

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  • Question
    How do you install a microwave above the stove?
    Gevorg Grigorian
    Appliance Repair Expert
    Gevorg Grigorian is an Appliance Repair Specialist and the Owner of G and R Appliance Repair in Los Angeles, California. With over 15 years of experience, Gevorg specializes in residential and commercial appliance repairs as well as heating, ventilation, and air conditioning (HVAC) services. Gevorg holds a BS in Business Administration and Management from California State University-Northridge.
    Gevorg Grigorian
    Appliance Repair Expert
    Expert Answer
    It's usually preferred to do this job with two people to make it easier. Make sure you cover the stove so that it is cushioned just in case the microwave falls during installation. You will need a level drill and drill bit to make the holes needed so that you can add the bracket needed to install the microwave. Unless you already have holes present, you will also need to add them to allow ventilation tubes to be installed.
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      Tips

      • For high cabinet spaces, have an assistant hold the electrical cable out of the way or snake it through a hole in the cabinet while you lift the microwave.
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      • If in any doubt, refer to the manufacturer's instruction manual or call the retail store you purchased the microwave from for more help.
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      • Proper ventilation is especially important for microwaves installed in an RV or other vehicle. Consider using a front-venting microwave or a kit for venting the cabinet to the outside.
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      Warnings

      • Do not use a microwave manufactured in a region with a different electrical standard than your present location. This risks permanently destroying your microwave and starting a fire.
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      • Placing a microwave's vents against the cabinet walls or failing to clean them regularly increases the risk of fire from dust buildup.
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      Things You'll Need

      • Microwave

      For Under Cabinet Microwaves :

      • Microwave's Mounting Plate
      • Drill
      • Stud Finder or Hammer
      • Pen or Marker
      • Level
      • Tape (if you have the paper template)
      • 3/16" (5mm) Lag screws (1-4)
      • 3/8" (10mm) Toggle screws (2-4)

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      References

      1. ↑ Gevorg Grigorian. Appliance Repair Expert. Expert Interview. 30 July 2020.
      2. ↑ http://www.stylemepretty.com/living/2012/12/01/how-to-find-a-wall-stud-without-a-stud-finder/
      3. ↑ http://www.stylemepretty.com/living/2012/12/01/how-to-find-a-wall-stud-without-a-stud-finder/
      4. ↑ Gevorg Grigorian. Appliance Repair Expert. Expert Interview. 30 July 2020.
      5. ↑ Gevorg Grigorian. Appliance Repair Expert. Expert Interview. 30 July 2020.
      6. ↑ http://www.diynetwork.com/how-to/how-to-install-an-under-cabinet-microwave/index.html
      7. ↑ Gevorg Grigorian. Appliance Repair Expert. Expert Interview. 30 July 2020.

      About This Article

      Article Summary X

      To install an under cabinet microwave, first find your wall studs by tapping with a hammer on the wall until you hear a solid "thud" rather than a hollow sound. Next, position the mounting plate so it's level with the bottom of the cabinet and drill holes over the studs and a hole for the power cord. When you're ready to fix the plate to the wall, get someone to hold the plate while you attach it with lag screws. Once the plate is in place, thread the power cord through the hole and hang the microwave on the support tabs. For tips on how to install a countertop microwave, read on!

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