9 Best Microwave Oven Trim Kit (October 2026)
The best microwave oven trim kits include the RecPro 1.0 Cu. Ft. RV Microwave for an RV replacement, the Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. for a Frigidaire Gallery built-in, and the Tatuo 2 Pcs Stainless Steel Microwave Trim for narrow stainless side gaps.
On this page (6 sections)
The best microwave oven trim kit is the one made for your microwave model and measured opening. For a Frigidaire Gallery built-in, pair the microwave with its matching trim kit; for a cabinet side gap, compare panel height, depth and finish.
A trim kit can frame a built-in microwave or cover open space beside an over-the-range unit. Those jobs need different parts, so identify what you are trying to fit before you shop.
If you are new to the part, start with what a trim kit for an over-the-range microwave does. Then use our guide to microwave trim kit fit to check compatibility.
Our picks at a glance
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1
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2
Best for a Frigidaire Gallery built-inFrigidaire Gallery Series GMBS3068BF 2.2 cu. ft.
9.6/10 our score
See it on Amazon -
3
Best for narrow stainless side gapsTatuo 2 Pcs Stainless Steel Microwave Trim
9.5/10 our score
See it on Amazon
- 4
Check itFrigidaire Gallery 27 in. Trim Kit GMTK2768AF
Best for the Frigidaire 27 in. setup - 5
Check itBagean Microwave Filler Kit 2.95” Wide Stainless
Best for a taller stainless gap - 6
Check itBagean Microwave Filler Kit 2.95”W Stainless Steel
Best for a shorter stainless gap - 7
Check itBagean Universal Microwave Trim Kit
Best for a black side gap - 8
Check itLG 30 in. Trim Kit for Countertop
Best for an LG 30 in. countertop setup - 9
Check itSamsung Microwave Oven Trim Kit
Best for Samsung MS19M8000AS/AA
How we chose a microwave oven trim kit
We compared the listed dimensions, stated microwave compatibility, finish and included pieces for each option. Our score weighs specs, features and buyer feedback against what you're shopping for.
The products here include both complete model-specific frames and side filler panels. A filler panel may hide a gap, but it does not replace a built-in frame designed for a particular microwave.
For a stainless steel microwave trim kit, prioritize finish and panel dimensions after confirming the model. If your opening is wider than the microwave, compare adjustable microwave trim kit options only after checking how each design attaches.
| Product | Best for | Capacity | Install cutout | Trim size | Our score |
|---|---|---|---|---|---|
| RecPro 1.0 Cu. Ft. RV Microwave | an RV replacement | 1.0 cu. ft. | 20 W x 13 3/8 H x 14 1/8 D in | 20 1/2 W x 15 H in | 9.7 |
| Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. | a Frigidaire Gallery built-in | 2.2 cu. ft. | 9.6 | ||
| Tatuo 2 Pcs Stainless Steel Microwave Trim | narrow stainless side gaps | 9.5 | |||
| Frigidaire Gallery 27 in. Trim Kit GMTK2768AF | the Frigidaire 27 in. setup | 9.4 | |||
| Bagean Microwave Filler Kit 2.95” Wide Stainless | a taller stainless gap | 9.3 | |||
| Bagean Microwave Filler Kit 2.95”W Stainless Steel | a shorter stainless gap | 9.2 | |||
| Bagean Universal Microwave Trim Kit | a black side gap | 9.1 | |||
| LG 30 in. Trim Kit for Countertop | an LG 30 in. countertop setup | 8.9 | |||
| Samsung Microwave Oven Trim Kit | Samsung MS19M8000AS/AA | 8.3 |
Microwave oven trim kits compared by fit and finish
The products below are ordered by score, with the intended fit called out in each pick. Use the dimensions and compatibility notes as a starting point, then verify your appliance and opening measurements.
RecPro 1.0 Cu. Ft. RV Microwave: Best for an RV replacement
- Trim kit included
- 1.0 cu. ft. built-in microwave
- Black or stainless steel color options
- Replaces Greystone or High Pointe microwaves
This is a microwave with a trim kit included, rather than a standalone frame. Its stated replacement fit is for Greystone or High Pointe microwaves.
Pros
- Trim kit included
- Two stated color options
- Cutout dimensions provided
Cons
- Not for under-cabinet mounting
- Replacement fit is limited to named microwave lines
RecPro is the only pick here that includes a microwave and trim kit together. It is a 1.0 cu. ft. built-in RV microwave with black or stainless color options, and RecPro describes it as a replacement for Greystone or High Pointe microwaves.
The cutout is 20 W x 13 3/8 H x 14 1/8 D in, while the trim kit measures 20 1/2 W x 15 H in. Those numbers help you compare the unit with an existing RV opening before you remove the old microwave.
The microwave has 8 express cook options, 10 power levels, instant start and a child safety lock. RecPro says the kit is not for under-cabinet mounting, so check the installation type rather than assuming the included frame works in any cabinet.
Choose it when you need an RV replacement in the stated Greystone or High Pointe fit. For a separate frame for a home microwave, choose a kit that matches that microwave's model and cutout.
Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft.: Best for a Frigidaire Gallery built-in
- 2.2 cu. ft. built-in microwave
- Matching 27 in. and 30 in. trim kits available separately
- Sensor cooking
- Cutout dimensions provided
This built-in microwave needs a separately sold trim kit for installation. Its matching kit options come in 27 in. and 30 in. sizes.
Pros
- Capacity and cutout dimensions are given
- Matching Frigidaire trim kits are identified
- Sensor cooking
Cons
- Trim kit is sold separately
- Choose a kit size that matches the installation
The Frigidaire Gallery GMBS3068BF is a built-in microwave whose trim kit is sold separately. Frigidaire identifies matching 27 in. and 30 in. kits, giving you a clear route to a coordinated installation when the microwave model and opening match.
Its cutout measures 24 3/4 W x 20 D x 16 3/4 H in. The microwave itself measures 24 7/16 W x 19 5/8 D x 13 5/8 H in, so compare the cabinet cutout with the required dimensions rather than using the appliance width alone.
The 2.2 cu. ft. interior accommodates larger dishes, and sensor cooking adjusts power and cook time. The separate trim kit is an added part to plan for, and the correct width depends on your installation.
For this microwave, pair it with the matching Frigidaire Gallery 27 in. trim kit only if the model and cutout requirements line up. The linked guide covers brand-specific choices; verify the kit model before ordering.
Tatuo 2 Pcs Stainless Steel Microwave Trim: Best for narrow stainless side gaps
- Two stainless steel side panels
- 3 in. wide
- About 15.75 in. high and 11 in. deep
- 16 screws included
The two panels are designed to cover side gaps around a microwave under cabinets. Tatuo suggests them for a 30 in. oven in a 36 in. cabinet or a 36 in. oven in a 42 in. cabinet.
Pros
- Two panels and screws included
- Panels can be bent by hand
- Stainless finish
Cons
- Measure the opening and panel depth first
- Designed as side panels, not a model-specific built-in frame
Tatuo supplies two stainless side panels, each about 3 in. wide, 15.75 in. high and 11 in. deep. The set includes 16 screws and is meant to cover open side space around a microwave under cabinets.
Tatuo suggests the panels for a 30 in. oven in a 36 in. cabinet or a 36 in. oven in a 42 in. cabinet. Treat those examples as a starting point and measure your actual opening, since appliance depth and side clearance can vary.
The panels can be bent by hand to secure them in position. That gives some flexibility during fit, but they are filler panels rather than a model-specific trim frame for a built-in microwave.
Choose this stainless steel microwave trim kit style when your goal is to cover side gaps and the dimensions suit your setup. If you want a black finish, see our best black stainless microwave trim kit guide.
Frigidaire Gallery 27 in. Trim Kit GMTK2768AF: Best for the Frigidaire 27 in. setup
- Smudge-Proof stainless steel
- For Frigidaire Gallery 2.2 cu. ft. built-in microwave
- Front frame assembly
- Exhaust duct, mounting rail and screws included
This model-specific kit provides the frame and installation parts for the Frigidaire Gallery built-in microwave. Confirm your microwave model and opening before choosing the 27 in. version.
Pros
- Installation parts included
- Made for the matching Frigidaire Gallery microwave
- Stainless finish
Cons
- Model-specific fit
- 27 in. size may not suit another opening
The Frigidaire Gallery 27 in. trim kit is the direct frame option for a compatible Frigidaire Gallery built-in microwave. Its smudge-proof stainless steel finish is designed to complement the matching appliance.
The package includes a front frame assembly, exhaust duct, bottom mounting rail and 6 screws. Frigidaire says a trim kit is required to install its Gallery 2.2 cu. ft. built-in microwave, so confirm that your microwave is the compatible model before choosing this kit.
This is a 27 in. frame, not a universal side-gap filler. Check the required cutout and model number against your microwave installation instructions before making a choice.
Choose it for a matching Frigidaire Gallery installation where the 27 in. size is the correct fit. For a broader overview of the best 30 inch microwave trim kit options, compare other sizes and model-specific frames.
Bagean Microwave Filler Kit 2.95” Wide Stainless: Best for a taller stainless gap
- Two stainless steel filler pieces
- 2.95 in. wide
- 17.25 in. high and 10.75 in. deep
- Eight screws included
These filler panels cover a side gap around a microwave, with a taller profile than the shorter Bagean option below. Bagean identifies them as a replacement for W10164745.
Pros
- Taller panel dimensions
- Stainless finish
- Screws included
Cons
- Measure carefully before buying
- A filler panel is not a model-specific built-in trim frame
Bagean's stainless filler kit has two panels that measure 2.95 in. wide, 17.25 in. tall and 10.75 in. deep. The package includes 8 screws, and Bagean identifies it as a replacement for W10164745.
The greater panel height may suit an opening where shorter fillers leave uncovered space. Bagean describes it for a 30 in. microwave in a 36 in. opening or a 36 in. microwave in a 42 in. opening, but you still need to compare the panel depth and height with your own setup.
This is a gap-filling option, not a front frame for a built-in microwave. Remove the protective film before installation, and follow the instructions for safe attachment.
Choose it when the taller stainless panels fit your measurements. If your microwave is a Panasonic model, the Panasonic microwave trim kit guide can help you narrow brand-specific compatibility.
Bagean Microwave Filler Kit 2.95”W Stainless Steel: Best for a shorter stainless gap
- Two stainless steel filler pieces
- 2.95 in. wide
- 15.75 in. high and 10.75 in. deep
- Eight screws included
This pair of panels covers a cabinet gap beside a microwave, with a shorter height than the taller Bagean filler kit. It is identified as a replacement for 8171339.
Pros
- Shorter panel height
- Stainless finish
- Screws included
Cons
- Measure the cabinet opening and microwave first
- Does not replace a model-specific built-in frame
This Bagean set uses two stainless panels that are 2.95 in. wide, 15.75 in. high and 10.75 in. deep. It includes 8 screws and is identified as a replacement for 8171339.
The shorter height distinguishes it from the other Bagean stainless filler kit in this roundup. Bagean suggests it for a 30 in. microwave in a 36 in. cabinet or a 36 in. microwave in a 42 in. cabinet, but measure the opening and compare all three panel dimensions before buying.
The panels fill a cabinet gap beside an over-the-range microwave. They do not provide the front frame and duct parts needed for a model-specific built-in installation.
Choose this version if its shorter panel height and stainless finish fit the space. For a microwave drawer, use a purpose-made microwave drawer trim kit guide because drawer installations use a different arrangement.
Bagean Universal Microwave Trim Kit: Best for a black side gap
- Two black coated metal filler pieces
- 2.95 in. wide
- 10.75 in. deep
- Eight screws included
This kit uses black coated metal panels to fill cabinet gaps beside a microwave. Bagean identifies it as a replacement for the black Whirlpool W10164739 filler kit.
Pros
- Black finish
- Two panels and screws included
- Made for side gap filling
Cons
- Confirm panel height before buying
- Not a model-specific built-in trim frame
Bagean's black filler kit includes two coated metal panels and 8 screws. Each panel is 2.95 in. wide and 10.75 in. deep, and Bagean identifies the kit as a replacement for the black Whirlpool W10164739 filler kit.
The black finish can coordinate with a black microwave where stainless panels would stand out. Bagean describes this as a gap filler for a 30 in. microwave in a 36 in. opening or a 36 in. microwave in a 42 in. opening.
The stated height in the product details is inconsistent: the title gives 10.75 in., while the description gives 15.75 in. Confirm the height with the seller before buying, and do not rely on the width alone to judge fit.
Choose it only when the finish and confirmed panel dimensions work for your opening. If you want a made-to-measure solution, compare the questions in our custom microwave trim kit guide.
LG 30 in. Trim Kit for Countertop: Best for an LG 30 in. countertop setup
- LG stainless steel trim kit
- 30 in. model designation
- Model MK2030NST
This LG trim kit is identified for a 30 in. countertop microwave setup. Match the kit designation to your microwave and cabinet before ordering.
Pros
- Brand and model number provided
- Stainless finish
- 30 in. designation
Cons
- Specific microwave compatibility needs confirmation
- Detailed opening dimensions are not provided
The LG MK2030NST is identified as a stainless steel trim kit for a 30 in. countertop microwave oven. Its model number gives you a specific compatibility reference to compare with your microwave manual.
Detailed cutout dimensions and the compatible microwave model are not provided here. That makes model confirmation especially important before buying, since a 30 in. designation alone does not prove that the frame fits your appliance.
Choose this option when you already have an LG setup that calls for MK2030NST. If your opening is 24 in. wide, review our guide to a 24 inch microwave trim kit and match the kit to the exact model.
Samsung Microwave Oven Trim Kit: Best for Samsung MS19M8000AS/AA
- Stainless steel finish
- Adds a built-in look to a countertop microwave
- Fits model MS19M8000AS/AA
This Samsung kit is a model-specific option for the MS19M8000AS/AA countertop microwave. Check that exact model number before buying.
Pros
- Compatibility is stated by microwave model
- Stainless steel finish
- Designed for a built-in look
Cons
- Compatibility is limited to the named model
- Opening dimensions are not provided
The Samsung MA-TK8020TS/AA is a stainless steel trim kit for the MS19M8000AS/AA countertop microwave. This is the clearest fit detail to use when deciding whether it belongs in your installation.
The kit is described as adding a built-in look to that countertop model. Since compatibility is model-specific, compare the full microwave model number, including its suffix, before ordering.
For a countertop unit without a trim kit, see whether you can put a countertop microwave in a cabinet.
Choose it only for the named Samsung microwave. For another brand or model, look for a trim kit that names your microwave rather than relying on a similar width or finish.
How do you measure for a microwave oven trim kit?
Measure the microwave model, cabinet opening and required cutout before choosing a trim kit. Compare the kit's width, height and depth with the installation instructions for your exact microwave.
A built-in frame and side filler panels are different parts. Frames may include a front assembly and duct, while filler panels cover open space beside a microwave; neither should be assumed to substitute for the other.
If the opening is 30 in. wide, start with our 30 inch microwave trim kit guide. For a smaller opening, use the same measurement process with a 24 inch microwave trim kit.
What is the difference between a trim frame and filler panels?
A trim frame surrounds a compatible built-in microwave, while filler panels cover side gaps around a microwave that is narrower than the cabinet opening. Match the part to the installation job and the microwave model.
The Frigidaire Gallery kit includes a frame assembly, exhaust duct and mounting rail. The Bagean and Tatuo options are side panels with stated dimensions, so they address open side space rather than acting as complete built-in frames.
The phrases “microwave oven trim kit” and “stainless steel microwave trim kit” can describe different parts. Read the fit details and measure before treating two products as substitutes.
Which finish should you choose?
Choose a finish that matches your microwave and nearby appliances, then check the exact panel dimensions. Stainless steel options suit a stainless appliance, while the Bagean black filler kit is intended for a black setup.
Stainless products also vary in shape and purpose. Tatuo and Bagean offer side panels, while Frigidaire's stainless 27 in. kit is a model-specific built-in frame.
How do you choose the best microwave oven trim kit?
Choose the best microwave oven trim kit by matching the microwave model first, then checking the cutout, opening and finish. A brand name or nominal width alone cannot confirm fit.
Pick RecPro when replacing a compatible RV microwave and you want the trim included. Choose Frigidaire's 27 in. frame for the matching Gallery microwave, and consider a filler kit only when side gaps are the problem and its measured size fits.
For any model-specific installation, use the microwave's instructions to confirm the required kit and cutout. That check is more useful than assuming a kit is universal because it has a similar width.
Our top 3 picks at a glance
-
1
-
2
Best for a Frigidaire Gallery built-in
Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft.
9.6/10 our score
See it on Amazon -
3
Best for narrow stainless side gaps
Tatuo 2 Pcs Stainless Steel Microwave Trim
9.5/10 our score
See it on Amazon
Frequently asked questions
Are microwave trim kits universal?
No. Many trim kits are made for specific microwave models, while filler panels may cover gaps around a range of models if their dimensions fit.
Match the microwave model, cutout and kit dimensions before buying.
Our guide to whether microwave trim kits are universal explains the difference.
How do I choose a stainless steel microwave trim kit?
Choose a stainless steel microwave trim kit by checking the microwave model, opening width and height, panel depth, and finish. A matching stainless color helps the frame or filler panels blend with nearby appliances.
Measure the opening and compare every stated dimension before ordering.
Do microwave trim kits include the microwave?
Most trim kits are frames or filler panels sold separately from a microwave. The RecPro RV microwave in this guide is an exception because its trim kit is included with the appliance.
Check the model and package contents to see whether you need to buy the microwave and kit together.
What should I measure before buying a trim kit?
Measure the microwave, cabinet opening and cutout, then compare those numbers with the kit's width, height and depth. Also confirm whether the kit is a built-in frame or side filler panels, since they solve different fit problems.
Use the microwave manual for model-specific cutout requirements.
