A built-in microwave can give your kitchen a cleaner, more finished look, but the right trim kit and cabinet opening matter just as much as cooking power. Some models here include a trim kit, while others require a separate purchase—and one option is a trim kit by itself. Compare the listed dimensions and installation details with your space before you buy.
Quick Comparison
| Product | Capacity / Power | Trim Kit | Best For |
|---|---|---|---|
| Frigidaire Gallery GMBS3068BF | 2.2 cu. ft. / 1,100 watts | Sold separately | Large dishes and sensor cooking |
| Summit SMBI24 Built-In Microwave | 1.2 cu. ft. / 1,000 watts | Included | A compact built-in setup with a matching trim kit |
| BRAMA Built-In Microwave | 2.2 cu. ft. / 1,200 watts | Included | Large capacity and flexible installation |
| RecPro RV Microwave | 1.0 cu. ft. / 900 watts | Included | RV replacement installations |
| Frigidaire Gallery 27-Inch Trim Kit | Trim kit accessory | This is the trim kit | Finishing a compatible Frigidaire Gallery microwave installation |
Our Picks: Best Built In Microwave Ovens With Trim Kits reviews
1. Frigidaire Gallery GMBS3068BF: Large Capacity with Sensor Cooking
The Frigidaire Gallery GMBS3068BF is a full-size built-in microwave with 2.2 cubic feet of capacity and 1,100 watts of power. Sensor cooking and sensor reheating adjust the cooking time and power for selected foods, while auto defrost and quick start cover everyday tasks.
The stainless steel unit measures about 24 7/16 inches wide, 19 5/8 inches deep, and 13 5/8 inches high. Its listed cabinet cutout is 24 3/4 inches wide, 20 inches deep, and 16 3/4 inches high. Check those requirements against your cabinet before ordering. The trim kit is sold separately and is available in 27-inch and 30-inch versions.
This model suits households that want room for larger dishes and prefer sensor-assisted cooking. The main trade-off is that the separate trim kit adds another item to choose and coordinate. Its larger capacity also makes accurate cabinet measurements especially important.
Pros:
- Spacious 2.2-cubic-foot interior
- Sensor cook and sensor reheat functions
- Eleven power levels and auto defrost
- Trim kit options for 27-inch or 30-inch installations
Cons:
- Trim kit must be purchased separately
- Requires a specific cabinet cutout, so measure carefully
Verdict: Choose the GMBS3068BF if you want a roomy built-in microwave with sensor features and are prepared to select the matching trim kit separately.
2. Summit SMBI24: Built-In Microwave with Trim Kit Included
The Summit SMBI24 pairs a 1.2-cubic-foot microwave with a stainless steel trim kit. It delivers 1,000 watts of power and has 10 power levels, multistage cooking, weight or time defrost, and a 30-second quick-start button. Preset options include popcorn, pizza, and beverages.
The manufacturer lists a required cutout of 15 3/4 inches high, 22 1/2 inches wide, and 18 1/4 inches deep. The trim kit is designed for 24-inch-wide cabinet openings or over-the-range spaces, and the front-venting design supports the listed installation options above or below a counter or over a wall oven. Confirm the exact installation instructions and clearances for your setup.
Its smaller capacity makes it a practical fit when a large-cavity model would be excessive. The trim kit comes with the microwave, which simplifies shopping, but the 1.2-cubic-foot interior is less generous than the Frigidaire and BRAMA options.
Pros:
- Stainless steel trim kit is included
- Ten power levels and multistage cooking
- Quick-start and preset cooking options
- Front-venting design for the listed built-in placements
Cons:
- Smaller 1.2-cubic-foot capacity than several other picks
- Cutout dimensions need to match your cabinet opening
Verdict: The Summit SMBI24 is a sensible choice if you want a compact built-in microwave and prefer to get the trim kit with the appliance.
3. BRAMA Built-In Microwave: High Power and a Trim Kit Included
BRAMA’s microwave offers a 2.2-cubic-foot capacity, 1,200 watts of power, and 10 power levels. It comes with a trim kit and is described as suitable for either countertop use or built-in installation. Cooking features include express cook, memory settings, preset menus, auto defrost, and sensor cooking.
The touchscreen controls, digital clock, kitchen timer, and silent mode give it a feature-rich control panel. A child lock adds a safety feature, and the rotating glass turntable helps move food during cooking. The supplied product details do not list cabinet cutout dimensions, so verify the installation requirements with the manufacturer before planning a built-in opening.
Some users report that the trim-kit setup is straightforward and that the microwave runs quietly. Those experiences are encouraging, but installation still depends on matching the unit and kit to your cabinet. Compared with the Frigidaire, BRAMA includes the trim kit and provides more listed wattage; the Frigidaire, by contrast, provides specific cutout dimensions and a named trim-kit range.
Pros:
- Large 2.2-cubic-foot capacity
- 1,200 watts and 10 power levels
- Trim kit included for built-in use
- Sensor cooking, presets, and express-cook options
Cons:
- Cabinet cutout dimensions are not included in the supplied product details
- Check installation compatibility before choosing a built-in location
Verdict: Consider BRAMA if you want a large-capacity microwave with strong listed wattage and an included trim kit, but confirm the installation measurements first.
4. RecPro RV Microwave: A Compact Option for RV Kitchens
The RecPro is a 1.0-cubic-foot microwave made for RV kitchens and replacement installations. It has 900 watts of cooking power, 10 power levels, a turntable, and eight express-cook options, including popcorn, potato, pizza, beverage, and vegetables. The included picture-frame trim kit gives the installation a finished appearance without requiring a separate kit purchase.
The listed exterior dimensions are 20.5 inches wide, 14.75 inches deep, and 15 inches high. RecPro identifies it as a direct replacement for certain Greystone or High Point microwaves, but you should still compare the dimensions and mounting points with your existing opening. Some users report quick installations, while fit can vary by RV model and may require adjustments.
This is the most specialized choice in the group. Its compact size and RV-focused fit may make it useful for a travel trailer or motorhome, but its 1.0-cubic-foot interior is much smaller than the full-size household options. It is not the best match if your main goal is a large built-in microwave for a standard kitchen.
Pros:
- Trim kit is included
- Compact size designed for RV installations
- Eight express-cook options and 10 power levels
- Stainless steel and black color options are listed
Cons:
- Smaller capacity and lower wattage than the other full-size models
- Fit may depend on the RV opening and existing mounting setup
Verdict: Pick the RecPro for a compatible RV replacement, not as a first choice for a roomy residential kitchen microwave.
5. Frigidaire Gallery 27-Inch Trim Kit: A Finish Piece, Not a Microwave
This Frigidaire Gallery product is a 27-inch stainless steel trim kit, not a microwave oven. It is intended to complete a compatible Frigidaire Gallery built-in installation. The kit listing says it is required for installing the brand’s 2.2-cubic-foot built-in microwave and includes a front frame assembly, exhaust duct, bottom mounting rail, and screws.
The smudge-proof stainless steel finish is designed to coordinate with the microwave and create a more integrated appearance. Buyers report that the kit can fit the matching microwave well, but compatibility is the key issue: check the appliance model and installation instructions before ordering. A 27-inch kit will not substitute for the listed 30-inch version where that size is required.
Because it is an accessory, this product only makes sense if you already have—or plan to buy—the compatible Frigidaire Gallery microwave. If you need a complete appliance with a trim kit included, the Summit, BRAMA, or RecPro options are more direct comparisons.
Pros:
- Designed for a finished built-in appearance
- Smudge-proof stainless steel finish
- Includes listed mounting and venting components
- Useful for a compatible Frigidaire Gallery installation
Cons:
- Does not include a microwave oven
- Must match the appliance and required trim-kit width
Verdict: Buy this kit only when you have confirmed that your Frigidaire Gallery microwave requires the 27-inch GMTK2768AF trim kit.
How to Choose a Built-In Microwave Oven with a Trim Kit
Measure the Cabinet Cutout First
Measure the opening’s width, height, and depth, then compare those numbers with the microwave’s installation requirements. Do not rely only on the appliance’s exterior dimensions: a built-in unit may need additional space for the trim frame, ventilation, or mounting hardware. The Frigidaire and Summit listings provide specific cutout dimensions; ask the manufacturer for the requirements if they are not shown for your chosen model.
Check Whether the Trim Kit Is Included
Product listings can refer to a microwave and a trim kit in the same description even when the kit is sold separately. The Frigidaire GMBS3068BF requires a separate kit, while the Summit, BRAMA, and RecPro listings say a trim kit is included. The Frigidaire GMTK2768AF listing is for the accessory alone, so it does not provide a microwave.
Match the Kit to the Exact Microwave Model
Trim kits are not universal. Confirm the kit’s model number, width, and compatibility with the microwave you plan to install. If the appliance offers more than one kit size, choose the size that matches both the specified cabinet opening and the installation instructions.
Choose Capacity for the Food You Cook
A larger interior can make it easier to heat big dishes or several items at once. The Frigidaire and BRAMA models each list 2.2 cubic feet of capacity, while the Summit lists 1.2 cubic feet and the RecPro lists 1.0 cubic foot. Consider the dishes you use regularly, but also make sure a larger appliance can fit your cabinet.
Compare Power and Cooking Features
Wattage can help you compare the listed cooking power: these options range from 900 watts for the RecPro to 1,200 watts for BRAMA. Also consider the controls and programs you will use. Sensor cooking appears on the Frigidaire and BRAMA listings, while the Summit offers multistage cooking and the RecPro has express-cook presets.
Consider Where the Microwave Will Be Installed
Some models are designed for particular settings. RecPro is aimed at RV kitchens and replacement installations, while Summit describes several built-in placements and a front-venting design. BRAMA is listed for countertop or built-in use. Confirm the appliance’s approved installation method and ventilation needs before purchasing; a trim kit alone does not make every countertop microwave suitable for a cabinet.
Think About the Finished Look and Installation
Stainless steel trim can help a microwave blend with nearby appliances, but the finish and frame style should suit your kitchen. Check what hardware comes with the kit and whether the installation instructions fit your cabinet layout. If your cabinet needs changes or you are unsure about ventilation and electrical requirements, ask a qualified installer to review the plan.
Frequently Asked Questions
Does every built-in microwave need a trim kit?
Not every model uses a separate trim kit, but the options in this guide are listed with a kit included or a compatible kit available. Follow the appliance’s installation instructions and use the specified kit when required.
Is the Frigidaire Gallery GMBS3068BF trim kit included?
No. The product listing says its trim kit is sold separately. It identifies 27-inch and 30-inch kit options, so verify which size matches your installation before ordering.
Does the Frigidaire 27-inch trim kit include a microwave?
No. The GMTK2768AF is a trim kit accessory. It includes listed installation components, but the microwave oven must be purchased separately.
Which option has the largest listed capacity?
The Frigidaire Gallery GMBS3068BF and BRAMA microwave each list a 2.2-cubic-foot capacity. Both are larger than the Summit and RecPro models in this selection.
Which microwave is intended for an RV?
The RecPro is specifically described as an RV microwave and as a replacement for certain Greystone or High Point units. Check its dimensions and mounting fit against your RV before buying.
Can I install any microwave in a cabinet if I add a trim kit?
No. A trim kit does not automatically make a microwave suitable for built-in installation. Confirm that the model is approved for the intended placement and that your cabinet meets its cutout and ventilation requirements.
What should I measure before ordering?
Measure the cabinet opening’s width, height, and depth, and compare them with the required cutout—not just the microwave’s exterior size. Also confirm the trim-kit width, clearance, and mounting requirements for the exact model.
Final Recommendation
For a roomy residential built-in microwave with sensor cooking, the Frigidaire Gallery GMBS3068BF is a strong option if you are comfortable buying its trim kit separately. The BRAMA offers similar capacity with an included trim kit, but its cutout details should be confirmed before installation. Choose the Summit for a more compact built-in package with the kit included, and reserve the RecPro for a compatible RV setup. If you only need the trim piece for a matching Frigidaire microwave, the GMTK2768AF is an accessory—not a complete appliance.
