Best in-Cabinet Microwaves With Trim Kits for a Built-in Look
The best in-cabinet microwave depends on your cabinet opening, desired capacity, and whether you want the trim kit included or sold separately. Summit’s 24-inch model is a compact choice with a kit included, while its 30-inch model offers 2.2 cubic feet and 1,200 watts. Frigidaire’s 2.2-cubic-foot models suit buyers who want sensor cooking, but their compatible trim kits must be purchased separately. Measure the cutout before choosing any model.
| Model | Best For | Trim Kit |
|---|---|---|
| Summit SMBI24 | 24-inch openings | Included |
| Summit SMBI27TK30 | 30-inch openings | Included |
| Frigidaire Gallery GMBS3068BF | Large-capacity sensor cooking | Sold separately |
| Frigidaire PMBS3080BF | Buyers checking specific cutout dimensions | Sold separately |
| RecPro RV Microwave | RV kitchens | Included |
Summit SMBI24: Best For 24-Inch Spaces
The Summit SMBI24 is designed for 24-inch cabinet openings and includes a stainless-steel trim kit. Its listed installation cutout is 15 3/4 inches high, 22 1/2 inches wide, and 18 1/4 inches deep. The microwave has 1.2 cubic feet of capacity and 1,000 watts of power.
Choose this model if you want a relatively compact built-in microwave with the trim kit supplied. Features include preset options for popcorn, pizza, and beverages, defrosting by weight or time, multistage cooking, a 30-second add-on button, and a child lock. It can be installed above or below a counter or over a wall oven. Check the exact cutout dimensions before ordering; a 24-inch cabinet opening does not mean every opening will fit.
Summit SMBI27TK30: Best For 30-Inch Spaces
This Summit model offers 2.2 cubic feet of capacity and 1,200 watts, making it the better fit for buyers who need more interior room than the SMBI24 provides. It ships with a stainless-steel trim kit intended for 30-inch-wide cabinet openings or over-the-range spaces.
The listed cutout dimensions are 17 1/8 inches high, 25 1/2 inches wide, and 22 3/4 inches deep; the microwave itself measures 13 1/2 by 24 3/8 by 19 5/8 inches. Features include food presets, defrost by weight or time, multistage cooking, a 30-second button, and a child lock. Choose it if those dimensions suit your installation and you want the kit included. Confirm cabinet depth and opening measurements before purchase.
Frigidaire Gallery GMBS3068BF: Best For Sensor Cooking
The Frigidaire Gallery GMBS3068BF provides 2.2 cubic feet of cooking space for large dishes or multiple items. Its sensors determine and set a suitable power level and cooking time, a useful feature for buyers who prefer automatic cooking adjustments.
This model is best for shoppers seeking a spacious built-in microwave with sensor cooking and who can source the correct trim kit separately. Frigidaire lists compatible 27-inch and 30-inch kits: GMTK2768AF and GMTK3068AF. The key limitation is that the trim kit is not included. Verify the required kit size and cabinet cutout before purchasing the microwave and trim components.
Frigidaire PMBS3080BF: Best For Dimension-Led Planning
The Frigidaire PMBS3080BF is a 2.2-cubic-foot built-in microwave for buyers comparing appliances against measured cabinet openings. Its listed dimensions are 24 3/8 inches wide, 19 5/8 inches deep, and 13 5/8 inches high. The specified cutout is 24 3/4 inches wide, 20 inches deep, and 16 3/4 inches high.
Choose this model if those measurements align with your planned installation and you want a large-capacity Frigidaire. A 30-inch trim kit, PMTK3080AF, is sold separately. The listing identifies the trim kit as required, so include kit selection in the installation plan rather than assuming the microwave is ready to mount on its own.
RecPro RV Microwave: Best For RV Kitchens
The RecPro is a 1.0-cubic-foot microwave designed for RV kitchen use. Its picture-frame trim kit is included, so buyers do not need to purchase a separate trim piece for the listed package. It has a 30-second instant-start function and eight express-cook options for items such as popcorn, pizza, beverages, soup, and vegetables.
This is the best match in this selection for an RV owner seeking a finished built-in appearance and quick-cook presets. It is available in stainless steel or black. Its smaller 1.0-cubic-foot capacity makes it a less suitable choice for shoppers who need the larger cooking space offered by the 2.2-cubic-foot models. Confirm that its dimensions match the existing RV opening.
Buying Guide: How To Choose An In-Cabinet Microwave
Which measurements matter most?
Measure the cabinet opening’s width, height, and depth, then compare those figures with the manufacturer’s cutout specifications. Also check the microwave’s actual body dimensions and the trim kit’s required opening. A nominal 24-inch or 30-inch fit is not a substitute for checking the exact measurements.
Should you choose an included or separate trim kit?
An included kit, as with the Summit and RecPro models above, can simplify product selection. With the Frigidaire models, the compatible kit is sold separately. Confirm the correct model number and width, because a microwave and trim kit must be appropriate for one another and for the cabinet opening.
How much capacity and power do you need?
Compare capacity with the dishes and meals you typically heat. The 2.2-cubic-foot options provide more interior space than the 1.0- and 1.2-cubic-foot models. Among the products with stated wattage, the Summit 30-inch model lists 1,200 watts and the Summit 24-inch model lists 1,000 watts. Do not assume wattage for models whose listed details do not provide it.
What features are worth comparing?
Sensor cooking can adjust power and time automatically, while preset buttons simplify common tasks. Defrost options, multistage cooking, child locks, and quick-add buttons may also matter. Prioritize features you will use regularly, but treat installation dimensions and trim compatibility as essential checks.
Frequently Asked Questions
Can any countertop microwave be installed in a cabinet?
No. Choose a model specifically described as built-in capable or designed for built-in installation, and follow its installation requirements. Do not assume a countertop model can be enclosed safely.
Does every microwave in this list include a trim kit?
No. The Summit SMBI24, Summit SMBI27TK30, and RecPro listings include trim kits. The Frigidaire GMBS3068BF and PMBS3080BF require separately purchased compatible kits.
What is the difference between the microwave dimensions and cutout dimensions?
Microwave dimensions describe the appliance body. Cutout dimensions describe the cabinet opening specified for installation. Both sets matter when checking fit.
Is a 30-inch trim kit suitable for every 30-inch cabinet?
Not necessarily. Check the kit’s compatibility, the specified cutout, and the cabinet’s actual dimensions before ordering.