Can You Mount a Countertop Microwave Under a Cabinet?

Can you do it?

Some countertop microwaves can be mounted under a cabinet, but the answer depends on the model. A countertop unit that was not designed for mounting has no bracket, no template, and no approved airflow path for hanging under a cabinet. Using universal brackets can twist the case, block vents, and make the microwave unsafe.

The safe starting point is the manual. If the manual includes a mounting section or the box includes a mounting plate, the manufacturer has approved that model for this installation. If not, keep the microwave on a counter or choose a product made for mounting. For compact options that fit smaller spaces, see our best compact microwaves guide.

Which countertop microwaves can be mounted under a cabinet?

Look for a model that is described as mountable, under-cabinet ready, or hardware included. These models usually have reinforced bottoms or sides, pre-marked screw locations, and a bracket that attaches to the bottom of the cabinet or to the wall. The manual will list the exact hardware and the order of installation.

For models without mounting support, stay with a standard countertop placement and use our best countertop microwaves guide to compare options.

• Mountable models often ship with a metal bracket and screws.
• The instruction sheet will include a mounting template or diagram.
• Models marked countertop only should stay on a solid surface.
• If the top of the unit has air vents, check the clearance instructions before placing it under a cabinet.

Hardware and template

The hardware for a factory-supported under-cabinet installation is usually supplied with the microwave. It typically includes a mounting plate or bracket, screws, and a paper template that shows where to drill. The template matters because it marks the stud locations and the hole pattern for the bracket.

Mounting hardware from a different appliance is not a safe substitute. Use only the parts listed in the manual. If the original kit is lost, contact the manufacturer for a replacement before buying an aftermarket bracket. Our microwave mounting template and hardware article covers this in more detail.

Measure before you buy

Before choosing a mountable countertop microwave, measure the available space under the cabinet. You need width, depth, and height from the countertop to the cabinet bottom, plus room for the door to open. Compare those measurements to the dimensions in the spec sheet, not just the capacity in cubic feet.

The mounting template will also need space to fit against the cabinet and wall. A model that fits the opening may still be too deep for the door swing or too close to a backsplash. For a step-by-step approach, see how to measure for a microwave.

Clearance and ventilation

Clearance requirements vary by model, so the number that matters is the one printed in the installation instructions. Mount the microwave at the height the manual specifies and keep a gap between the top of the unit and the cabinet bottom if the manual asks for it. The gap protects the cabinet from heat and gives the microwave room to vent.

In general, a model with side or rear vents is easier to mount under a cabinet than a model with a top vent. If you are not sure which airflow path your unit uses, compare it with the over-the-range vs countertop microwave guidance to see how vent placement changes the installation.

• Leave the sides, top, and back open according to the manual.
• Do not add a shelf, towel, or decorative cover that blocks the air outlet.
• Make sure the door can swing fully open and the controls are reachable.

Electrical and safety considerations

Under-cabinet microwaves need a grounded outlet near the installation location, but the outlet should not be inside the microwave cavity. The power cord needs to reach the outlet without running across the countertop or through the cabinet in a way that damages the cord. See microwave electrical requirements before you decide where to put the outlet.

Microwave ovens sold in the United States are regulated as radiation-emitting electronic products by the FDA. That means the oven must meet federal safety standards when it is installed as intended. Do not modify the case, door, or interlocks to make a countertop model fit under a cabinet. A built-in microwave is a safer choice when you want a flush, built-in look.

When to choose a different type

For many kitchens, a true under-cabinet installation is easier with a product made for that purpose. An over-the-range microwave is designed to mount above a range and often includes venting. A built-in microwave can be installed into cabinetry with a trim kit. Both tend to have more installation guidance than a countertop model.

If you already own a countertop microwave without mounting hardware, do not drill holes into it. Instead, place it on a sturdy shelf or cart, or replace it with a mountable model. For general countertop placement, see our best countertop microwaves guide.

What to pick for your use

Questions

Can every countertop microwave be mounted under a cabinet?

No. Only models that include mounting hardware or list under-cabinet installation in the manual are approved for that use. A standard countertop unit should stay on a flat surface.

What clearance do I need under a cabinet?

Follow the clearance number in the manual. If the manual does not give one, that is a sign the model was not designed for under-cabinet mounting. Keep vents open and allow the door to swing freely.

Do I need a trim kit to mount a countertop microwave under a cabinet?

Usually not. A trim kit is for built-in installation, where the microwave sits inside a cabinet opening and trim fills the gap. Under-cabinet mountable microwaves use their own bracket and template.

Is it safe to mount a countertop microwave under a cabinet?

It is safe only when the manufacturer allows it and you follow the instructions. Do not add mounting holes or modify the case. The FDA treats microwave ovens as radiation-emitting products, so changing the structure can create safety problems.

What is the alternative to a countertop microwave under a cabinet?

An over-the-range microwave is made for mounting above a range. A built-in microwave or drawer unit can be installed into cabinetry. Both have more formal installation requirements than a countertop model.