24 Inch Built-in Microwave With Trim Kit (Review for 2023)

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Built-in microwaves can easily give your kitchen a streamlined appearance. However, you can’t just install the microwave on its own. These appliances need a trim kit to add some width so that the oven fits perfectly into the cabinet opening.

The trim kit also brings the microwave to the wall oven’s width, enhancing the aesthetic factor. Moreover, the trim kit ensures a correct installation and proper airflow, preventing the motor from overheating.

Not all built-in microwaves come with a trim kit – you will sometimes have to buy it separately. To save you the hassle, I spent countless hours searching the market and finding the best 24-inch built-in microwave with a trim kit. Of all, the five below have passed our selection process. Check them out.

Best 24-inch Built-in Microwave Comparisons

Editor’s Pick
Sharp SMD2470AS
Sharp SMD2470AS 24-Inch Microwave
  • Installation Type: Built-In
  • Wattage: 1000 watts
  • Material: Stainless Steel
  • Special Features: ‎Defrost
  • Capacity: 1.2 Cubic Feet
Easy to Install:
Easy to use:
Budget choice
Summit OTR24
Summit OTR24 24″ Built-In Microwave
  • Installation Type: Built-In
  • Wattage: 900 watts
  • Material: Stainless Steel
  • Special Features: Timer, Defrost
  • Capacity: 0.9 Cubic Feet
Easy to Install:
Easy to use:
best value
ZLINE 24″ 24-Inch Microwave
  • Installation Type: Built-In
  • Wattage: 1000 watts
  • Material: Stainless Steel
  • Special Features: ‎Defrost
  • Capacity: 1.2 Cubic Feet
Easy to Install:
Easy to use:

Do Built-in Microwaves Come With a Trim Kit?

No, built-in microwaves don’t usually come with a trim kit. This happens because most microwaves designed for a built-in installation are also countertop models. You can decide whether you want to keep the appliance on your counter or install it in a cabinet.

However, that doesn’t mean that you can pair all countertop microwaves with a trim kit. In fact, only determined ovens are compatible with a built-in installation; if that’s the case, you’ll be able to find a specific trim kit for the microwave model that you like.

In rare cases, brands offer microwave and trim kit bundles. Buying a bundle takes the guesswork out of the game. However, these opportunities are rare, and in most cases, you will have to buy the trim kit separately.

What Size Do Microwave Trim Kits Come in?

Trim kits come in two standard sizes: 27 inches and 30 inches. This size refers to the total width of the frame, and choosing one over the other is only a matter of circumstances.

The most important thing to consider when choosing between a 27 and a 30-inch trim kit is the interior width of the cabinet. If your cabinet has a width of 27 inches, the 30-inch trim kit won’t fit. Likewise, a 27-inch would leave a gap inside a 30-inch wide cabinet.

Trim kit-sizing

Another thing to consider is the width of your wall oven if you want to install the microwave above the wall oven.

Smaller microwaves may sometimes come with a 24-inch trim kit. These appliances are built for small kitchens, giving you the possibility to install the appliance in a narrower cabinet. However, when you’re looking for a 24-inch microwave with a trim kit, chances are you’ll get a 24-inch microwave with a trim kit of 27 or 30 inches.

Things that Matter the Most When Buying the Best 24 inch Microwave with Trim Kit

There are several things you should pay attention to when buying a microwave with a trim kit. Check them out below.

Trim kit size

As explained above, the size of the trim kit plays a crucial role in determining the final aesthetics of your built-in installation. Measure your cabinet as well as the wall oven before deciding which size to buy.

Remember that some microwaves are compatible with only one trim kit size, so you may have to look at alternative models, too.

Microwave compatibility

Each trim kit on the market is compatible with one specific microwave. Some brands have trim kits that are compatible with a small selection of appliances, but this is rare.

Thus, make sure you’re buying the trim kit manufactured specifically for the microwave you want. Otherwise, the trim kit may not fit.

Trim kit material

Most trim kits are made of stainless steel or aluminum and match the style and finish of your microwave. However, you may be able to find compatible trim kits made of PVC. These usually look cheap but could be an affordable option if you’re on a budget.

24-inch Built-in Microwave With Trim Kit

1. Frigidaire 2.2 Cu. Ft. Black Stainless Steel Built-In Microwave

Whether you have a large family or love to cook for crowds, the Frigidaire FGMO226NUF could be the best stainless steel built-in microwave for you. The appliance is available in two finishes, including stainless steel and our preferred variant, black stainless steel.


Its capacity of 2.2 cubic feet makes it perfect for cooking all sorts of meals. Add 30 pre-programmed settings and lots of manual adjustments, and you’ll never run out of options.

In addition to the large capacity, I also like the power that goes up to 1,200 watts and is adjustable.

The 24-inch wide unit is compatible with a 27-inch or 30-inch trim kit available in the same color options. Overall, the sleek design fits all kitchen styles.

Why I love it

Cooking options

The best advantage this microwave brings is the wide choice of pre-programmed settings – 30, to be precise. With a simple touch, you can cook veggies, potatoes, chicken nuggets, and even popcorn. Whether it’s a healthy meal or snacks, this oven’s got you covered.

Sensor cooking

One of the hardest things when using a microwave is getting the time and power settings right so that you don’t overcook or burn the food. The Frigidaire’s sensor cooking adjusts the power and time automatically, cooking your food to perfection.

Trim kit options

While most built-in microwaves out there are only compatible with one trim kit size; this one lets you choose between a 27-inch or 30-inch kit. Ideal for all kitchens.

What could be better

Microwave depth

This microwave oven is slightly deeper than its peers, which isn’t necessarily a bad thing. On the contrary, you get a bigger capacity. However, it might not fit all cabinets due to this reason.

Audible signals

Like all microwaves, the Frigidaire beeps when the cycle ends – which, again, is a good thing. However, if you don’t want to get the food out right away (perhaps you’re on the phone or something came up), the oven will beep every ten seconds or so until you remove the dish. This could easily become annoying, especially if you have small children.

2. Sharp KB-6524PS 24-Inch Microwave Drawer Oven

If you’re looking for a 24-inch built-in microwave oven with an incorporated trim kit, the Sharp KB-6524PS could suit you. While it isn’t designed to go into a cabinet, this drawer oven can add a touch of style to your kitchen. It also comes built-in ready and is suitable to install under a gas or electric wall oven – just what you need to save counter space.


The compact dimension makes it perfect for those who don’t use the microwave daily or to cook large meals. It has a capacity of 1.2 cubic feet and reaches up to 950 watts of cooking power – just perfect for snacks, reheating a pre-made meal, or making popcorn.

Despite its lower capacity and max power, this microwave drawer boasts 11 cooking programs and 11 power levels. Its only downside is the steep price tag. But if you want a flawless kitchen, it’s more than worth it.

Why I love it

Stylish design

Microwave drawers aren’t the most popular, but nothing takes away the fact that they are the most stylish appliances. The stainless steel finish pairs with all cabinet styles and adds a touch of modernity to your interior.

Control panel

Designed for easy use when you look at it from above, this oven has a top control panel slightly tilted up. You can operate it quickly and easily.


People with disabilities often find it hard to find appliances that they can use. This microwave drawer is ADA-compliant and perfect for making your home accessible to people with reduced mobility and other disabilities.

What could be better


One thing I would improve is the oven’s power. While 950 watts suffice for making popcorn or thawing meat, a few more watts would have added more versatility. Considering the oven’s price, I can’t justify the low wattage.


This microwave drawer is expensive. That said, its features and the benefits it brings fully justify the steeper price.

3. GE Profile PEM31SFSS Countertop Microwave

Advertised as a countertop microwave oven but compatible with trim kits, the GE Profile PEM31SFSS is a solid option if you’re on a budget. This oven is a bit smaller than the others on our list – while maintaining the 24-inch width – but still perfect for a single professional, student, or small family.


The 1.1 cubic feet capacity is perfect for preparing simple meals, defrosting foods, or keeping your food warm. Ten power levels (up to 800 watts), six pre-programmed cooking settings, and a sensor cook make operation a breeze.

Design-wise, the oven has a sleek appearance and comes in six colors. You can find a matching trim kit for all of them.

Why I love it

Turntable off option

This microwave oven knows how to take advantage of every space of capacity with its turntable-off function. The option allows you to turn off the turntable so that you can microwave rectangular casseroles or cooking pans.

Fast cooking speed

Despite the low power output, this oven has a good cooking speed. It’s not the right appliance for a 3-star meal, but you will love it for simple dishes and snacks.

Control panel

This unit has a simple yet intuitive control panel that makes it a cinch to use by everyone. A child lock helps you keep young hands from operating the unit.

What could be better

Build quality

While the performance is great, the unit’s built quality leaves a lot to be desired. The door feels flimsy, and the plastic components could be stronger.


Although the unit is easy to operate, the instructions miss some important information – such as the fact that you must leave the cardboard-looking panel inside the oven right where it is. This panel isn’t cardboard and shouldn’t be removed.

4. ZLINE 24″ Built-in Convection Microwave Oven

If you want a deluxe convection microwave oven in your kitchen and don’t mind spending a buck, the ZLINE 24″ is an excellent choice.

This convection oven boasts excellent build quality, stylish lines, and a spacious interior. With a capacity of 1.6 cubic feet and up to 1,000 cooking watts of power, it suits most homes. The versatile built-in design gives you the possibility to install it in any kitchen cabinet, including a base unit.


Convection, broil, and standard microwave modes make it perfect for a variety of dishes – it may not have a specific gourmet mode, but it definitely cooks gourmet meals. You can even choose from the eight pre-programmed cooking settings if you’re not quite sure how to adjust the time and temperature. Auto-settings also include melt, popcorn, and beverage.

Why I love it

One-touch cooking

Whether you want to make quick and easy snacks or warm up your coffee or cup of tea, the one-touch cooking settings and 30-second button make using this oven a breeze.

Useful accessories

One of the best things about this microwave oven is that it comes with a ceramic turntable instead of a glass one. Other accessories, such as a reversible wire rack for grilling, roasting, and baking, are also included.

Professional design

This oven fits beautifully in sophisticated kitchens. The built-in trim eliminates the need for a separate trim kit and makes it perfect for 24-inch cabinets.

What could be better

Control panel

The panel features the same sleek style as the rest of the oven, but a lack of backlight makes it hard to find the settings you need.

Installation options

This oven is designed for built-in installation. You can’t keep it on the counter, nor does it come with a trim kit you can use to adapt its dimensions to a larger cabinet or a wall oven.

5. Dacor DMW2420S Distinctive Series Microwave

Another standard microwave oven with a trim kit that’s worth your attention comes from Dacor. This unit features a 2.0 cubic feet capacity and 1,100 watts of power. It is an excellent choice for larger families or users who cook in the microwave all the time.


An attractive price tag and many interesting functions bring true value for money. You can expect a sensor cooking for easy adjustment of power and time, three defrosting options for meat, poultry, and fish, as well as six pre-programmed cooking settings.

You can opt for a countertop or built-in installation. Like the other units on this list, this oven doesn’t come with a trim kit, but you can buy one separately.

Why I love it

On-unit menu labels

Most microwaves come with pre-programmed cooking settings, but very few brands stamp their menu labels on the unit. This one does, eliminating the need to read the user manual each time.

Timer function

Do you want to find freshly cooked or warmed-up food when you get home? Pop the meal in the oven and program it to start at a designated time.

Easy minute

The equivalent of 30-second buttons in other ovens, the Dacor’s easy minute allows you to cook at max power for one full minute at the touch of a button.

What could be better

Control panel layout

This oven’s control panel includes lots of extra functions compared to other microwaves, but it has an awful layout that takes some time to figure out.


The oven is easy to operate and works great, but its lifespan isn’t the longest. You can expect to replace it in about 5-10 years.

24 inch Microwave With Trim Kit Comparison Chart

 Frigidair FGMO226NUFSharp KB-6524PSGE Profile PEM31SFSSZLINE MWO-24Dacor DMW2420S
Capacity2.2 cu. ft.1.2 cu. ft.1.1 cu. ft.1.6 cu. ft.2.0 cu. ft.
Max power1,200 watts950 watts800 watts1,0001,100
Power levels711101111
Cooking programs3011686

Advantages of a 24-inch Built-in Microwave

Finding the perfect microwave isn’t easy, but there is a reason why 24-inch built-in microwaves are so popular – they come with a number of advantages:

Installation options

Most 24-inch built-in microwaves are built as countertop appliances. A compatible trim kit transforms them into built-in; thus, you can easily switch from one installation to another if you have two.

Perfect size

The 24-inch width fits most cabinets, including base and upper units. You can also pick from 27-inch or 30-inch trim kits.

Multiple capacity options

Whether you need a small, one-person microwave with one cubic foot capacity or a larger unit for a family, you can find the right unit without too much hassle.


Whether you need a microwave that has 24 inches of width trim included or without the trim, there are multiple options you can choose from.

I hope this guide can help you select the right appliance for you.



Justin Schwartz is an experienced editor and food blogger based in New York. He focuses on healthy eating and living. When he’s not acquiring and publishing cookbooks, you can find Justin sampling food in New York’s restaurants or trying new recipes in his kitchen.

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