Best 30 Inch Microwave Trim Kits: Top 9 Picks (October 2026)

The best 30 inch microwave trim kits include the Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. for a matching built-in setup, the Tatuo 2 Pcs Stainless Steel Microwave Trim for a 30 in microwave in a wider cabinet, and the Frigidaire Gallery 27 in. Trim Kit GMTK2768AF for a Frigidaire 27 in installation.

On this page (4 sections)

1. Which 30 inch microwave trim kits are the best fit?
2. The best 30 inch microwave trim kits by use
3. How do you choose a 30 inch microwave trim kit?
4. Which 30 inch microwave trim kit should you choose?

The best 30 inch microwave trim kit depends on the microwave model and the opening. For a matched built-in setup, the Frigidaire Gallery GMBS3068BF has a 30 in trim kit available separately; for side gaps around a countertop microwave, the Tatuo and Bagean panels serve a different purpose.

A 30 in trim kit can mean a model-specific frame, a set of gap-covering side panels, or even decorative strips made for a wall oven. Check what the accessory is designed to do before comparing finishes.

If you're still learning what a microwave trim kit does, start there before measuring. This guide compares model compatibility, stated dimensions and installation type, with options for home and RV setups.

Our picks at a glance

1. 1
   Best for a matching built-in setup

   Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft.

   9.6/10 our score

   See it on Amazon
2. 2
   Best for a 30 in microwave in a wider cabinet

   Tatuo 2 Pcs Stainless Steel Microwave Trim

   9.5/10 our score

   See it on Amazon
3. 3
   Best for a Frigidaire 27 in installation

   Frigidaire Gallery 27 in. Trim Kit GMTK2768AF

   9.4/10 our score

   See it on Amazon

4. 4

   Bagean Microwave Filler Kit 2.95” Wide Stainless

   Best for filling a 3 in side gap
   Check it
5. 5

   JUYO VONSAN Wall Oven Trim Kit 4Pcs

   Best for decorative 30 in wall oven edges
   Check it
6. 6

   LG 30 in. Trim Kit for Countertop

   Best for a compatible LG countertop microwave
   Check it
7. 7

   CONTOURE RV Microwave Black Trim Kit

   Best for the CONTOURE RV-980B
   Check it
8. 8

   LG 30" Built-In Trim Kit in Stainless

   Best for compatible LG countertop models in black stainless
   Check it
9. 9

   Furrion Trim Kit for 0.9 cu ft

   Best for a compact Furrion RV microwave
   Check it

Which 30 inch microwave trim kits are the best fit?

The best choices for a 30 in installation are the ones that match your microwave model or solve a clearly measured cabinet gap. The Frigidaire and LG options are trim kits, while Tatuo and Bagean sell side panels for covering space.

We compared the stated product details against common buyer needs: model match, opening size, material and whether the item is a frame or gap filler. Our score weighs specs, features and buyer feedback against what you're shopping for.

The best 30 inch microwave trim kits by use

These 9 picks cover built-in trim, side gap panels and a few specialized options. Start with the microwave model, because a 30 in measurement by itself does not guarantee compatibility.

1

Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft.: Best for a matching built-in setup

9.6/10Our score

• 2.2 cu ft capacity
• 30 in trim kit available separately
• Sensor Cook and Sensor Reheat
• Built-in installation

This microwave is designed for a built-in installation, with Frigidaire offering a matching 30 in trim kit separately. Check the appliance model and cutout measurements before ordering the trim.

See it on Amazon

Pros

• Matching 30 in trim kit available
• 2.2 cu ft capacity
• Sensor cooking programs

Cons

• Trim kit sold separately
• Cutout dimensions need to match

The Frigidaire Gallery Series GMBS3068BF is a 2.2 cu ft built-in microwave with a 30 in trim kit available separately. Frigidaire identifies the matching kit as GMTK3068AF, which gives buyers a clear model family to check before planning the cabinet opening.

The microwave measures 24 7/16 in wide, 19 5/8 in deep and 13 5/8 in high. Its stated cutout is 24 3/4 in wide, 20 in deep and 16 3/4 in high, so compare those figures with your cabinet before ordering the trim.

Sensor Cook and Sensor Reheat are among its programs, and sensors set the cook time and power level. Those functions matter when you're choosing the microwave itself; the trim kit remains a separate accessory.

Pick this route if you want a built-in look and are pairing the microwave with its matching Frigidaire kit. If you're choosing the microwave separately, read how to choose a 30 inch over-the-range microwave to compare that different installation style.

2

Tatuo 2 Pcs Stainless Steel Microwave Trim: Best for a 30 in microwave in a wider cabinet

9.5/10Our score

• Two stainless steel side panels
• Each panel is 3 in wide
• 15.75 in tall and 11 in deep
• Includes 16 screws

These side panels are sized to cover a 3 in gap on each side in a suggested 36 in cabinet with a 30 in microwave. They are a gap-covering accessory, so check the microwave and cabinet depth before buying.

See it on Amazon

Pros

• Two panels and screws included
• Stainless steel finish
• Panels can be bent by hand

Cons

• Not a model-specific built-in frame
• Panel depth and height must suit the installation

Tatuo's two stainless steel side panels are 3 in wide each, with a stated height of 15.75 in and depth of 11 in. The suggested use is a 30 in oven in a 36 in cabinet, where the panels cover the side gaps.

The set includes 16 screws, and the panels can be bent by hand to secure them in position. This is a gap-covering accessory, not a complete manufacturer-specific microwave frame with a cutout installation system.

Measure your opening and appliance first, especially the depth and height. A 30 in microwave can still sit too far forward or leave an uncovered gap if the cabinet dimensions do not match the panels.

Choose Tatuo when the cabinet is wider than the microwave and the panels cover the measured side space. For a broader overview of the best microwave oven trim kit options, compare this kind of panel with model-specific frame kits.

3

Frigidaire Gallery 27 in. Trim Kit GMTK2768AF: Best for a Frigidaire 27 in installation

9.4/10Our score

• For Frigidaire Gallery built-in microwave
• Stainless steel frame
• Includes exhaust duct and mounting rail
• Six screws included

This 27 in trim kit is made for Frigidaire Gallery built-in microwave installations. It is not the 30 in option, so match the kit number to the microwave and opening before ordering.

See it on Amazon

Pros

• Brand-specific built-in kit
• Installation hardware included
• Smudge-Proof stainless steel finish

Cons

• 27 in size, not 30 in
• Compatibility should be confirmed by model

The Frigidaire Gallery GMTK2768AF is a 27 in trim kit for a Frigidaire Gallery built-in microwave. It does not fit the 30 in trim category by width, but it is a relevant option when the appliance and cutout call for a 27 in frame.

The kit includes a front frame assembly, exhaust duct, bottom mounting rail and 6 screws. Its stainless steel finish is described as Smudge-Proof, and Frigidaire says a trim kit is required to install its Gallery 2.2 cu ft built-in microwave.

Use this only after confirming the microwave model and required kit number. If your planned opening is narrower, our 24 inch microwave trim kit guide covers measurements for that size class.

4

Bagean Microwave Filler Kit 2.95” Wide Stainless: Best for filling a 3 in side gap

9.3/10Our score

• Two stainless steel side pieces
• 2.95 in wide
• 17.25 in tall and 10.75 in deep
• Eight screws included

The two panels cover a narrow side gap and are sized for a suggested 30 in microwave in a 36 in opening. Measure the height and depth as well as the width, since this is a filler kit rather than a model-specific trim frame.

See it on Amazon

Pros

• Two panels and eight screws included
• Stainless steel
• Designed to fill side gaps

Cons

• Fit depends on the actual opening
• Does not replace a model-specific built-in trim kit

Bagean's filler kit includes two 2.95 in wide stainless steel panels, each 17.25 in tall and 10.75 in deep. The suggested fit is a 30 in microwave in a 36 in opening, where the panels cover the side gaps.

Eight screws are included, and the panels have a protective film to remove before installation. Bagean describes the kit as a replacement for W10164745 and says it is compatible with Whirlpool, GE and other brands, but check your model and measurements rather than relying on a broad brand claim.

This is useful when you need to cover a gap instead of framing a model-specific built-in microwave. For a GE-specific comparison, see the best GE microwave trim kits.

5

JUYO VONSAN Wall Oven Trim Kit 4Pcs: Best for decorative 30 in wall oven edges

9.2/10Our score

• Four brushed stainless steel strips
• Each strip is 30 in long and 2 in wide
• Self-adhesive backing
• Protective film on front

These self-adhesive strips are made for wall oven trim, not for framing a microwave cutout. Consider them only when the goal is decorative edge coverage and the surface suits adhesive installation.

See it on Amazon

Pros

• Four strips included
• No extra hardware needed for adhesive mounting
• Brushed stainless steel

Cons

• Wall oven strips, not a microwave trim frame
• Adhesive mounting may not suit every surface

JUYO VONSAN includes four brushed stainless steel strips, each 30 in long and 2 in wide. They use self-adhesive backing and are described for 30 in wall ovens, so they are a decorative trim option rather than a microwave cutout frame.

The material is stated as 304 brushed stainless steel, and protective film covers the front during shipping. Since the strips rely on adhesive, check that the installation surface and the intended edge treatment suit that method.

Choose these only when you need decorative strips for a wall oven or a similar surface. They do not replace a microwave maker's frame, duct or mounting rail.

6

LG 30 in. Trim Kit for Countertop: Best for a compatible LG countertop microwave

8.9/10Our score

• 30 in trim kit
• Stainless steel finish
• Model MK2030NST

This LG trim kit is intended for countertop microwave installation in a built-in style. Match the microwave model to MK2030NST before choosing it.

See it on Amazon

Pros

• 30 in trim size
• LG model number provided
• Stainless finish

Cons

• Microwave compatibility must be checked
• Available details do not identify compatible models

LG's MK2030NST is a 30 in stainless steel trim kit for a countertop microwave. Learn whether microwave in a cabinet.

The model number is the key fit check, since the available details do not identify the microwave models it supports.

The stated product dimensions are 32 x 21 x 6 in. Compare those dimensions and the kit number with your appliance instructions and cabinet opening before committing to an installation.

Pick it if you have a compatible LG countertop microwave and want the stainless finish. If your appliance is from another brand, first check whether microwave trim kits are universal.

7

CONTOURE RV Microwave Black Trim Kit: Best for the CONTOURE RV-980B

8.3/10Our score

• Made for CONTOURE RV-980B
• Single-piece design
• Black finish
• Mounting hardware included

This black trim kit is specifically designed for the CONTOURE RV-980B microwave. It suits that RV installation, rather than a standard 30 in home built-in opening.

See it on Amazon

Pros

• Specific microwave compatibility
• Single-piece design
• Mounting hardware included

Cons

• For the RV-980B model
• Black finish may not match a stainless microwave

The CONTOURE black trim kit is made specifically for the RV-980B microwave. It has a single-piece design and includes manufacturer-recommended mounting hardware for that RV installation.

Its fit is tied to the named CONTOURE model, so it is not a general 30 in home microwave trim kit. The black finish may suit an RV kitchen with matching appliances, but it may look different beside stainless steel.

Choose it for the RV-980B, and confirm the appliance model before ordering. For kitchens with a freestanding setup, a large microwave cart with storage can provide a separate place for the appliance.

8

LG 30" Built-In Trim Kit in Stainless: Best for compatible LG countertop models in black stainless

8.2/10Our score

• Compatible with LG countertop microwaves
• Black stainless steel finish
• Model MK2030NBD
• Recessed mounting

This LG trim kit is for compatible LG countertop microwaves and has a black stainless finish. Confirm that your microwave model matches before treating it as a 30 in installation option.

See it on Amazon

Pros

• LG countertop microwave compatibility
• Black stainless finish
• Recessed mounting

Cons

• Exact compatible models need confirmation
• Finish differs from standard stainless

LG's MK2030NBD trim kit is described as compatible with LG countertop microwaves and has a black stainless steel finish. The stated dimensions are 32 x 21 x 6 in, and the mounting type is recessed.

Confirm the exact microwave model with LG's compatibility guidance before buying. The general compatibility wording does not identify which specific LG countertop models fit this kit.

Choose it when the model match is confirmed and the black stainless finish suits your kitchen. If you need an LG option in standard stainless, compare it with the MK2030NST above.

9

Furrion Trim Kit for 0.9 cu ft: Best for a compact Furrion RV microwave

8.1/10Our score

• Fits 0.9 cu ft Furrion microwaves
• Black aluminum
• Model FMSML09-BL-TK

This black aluminum kit is designed for Furrion 0.9 cu ft microwaves. Its specific appliance fit makes it an RV option, not a general 30 in trim kit.

See it on Amazon

Pros

• Fit tied to a specific Furrion size
• Aluminum construction
• Creates a built-in look

Cons

• For 0.9 cu ft Furrion microwaves
• Not a general 30 in home trim kit

Furrion's black aluminum trim kit is designed for 0.9 cu ft Furrion microwaves. Its model number is FMSML09-BL-TK, so check that reference against your appliance before ordering.

This is a compact RV-oriented option rather than a general 30 in home trim frame. Its specific capacity and brand fit make it useful when replacing or finishing a compatible Furrion microwave.

Choose it only for a matching Furrion 0.9 cu ft unit. For nonstandard cabinetry around a home microwave, compare the opening with a 36 inch microwave filler kit guide.

How do you choose a 30 inch microwave trim kit?

Choose the trim kit by microwave model first, then verify the cabinet opening and accessory dimensions. A kit's 30 in label does not guarantee that it fits every microwave with a similar width.

Does a 30 inch microwave trim kit fit every brand?

No, microwave trim kits are not automatically interchangeable across brands or models. A named model number, such as LG MK2030NST or Frigidaire GMTK3068AF, gives you a more useful compatibility check than trim width alone.

Look for the kit number in the microwave's installation guide or ask the manufacturer to confirm the pairing. If the accessory only covers side gaps, check the panel height and depth too.

How should you measure the opening?

Measure the cabinet opening's width, height and depth, then compare those dimensions with both the microwave cutout and the trim kit. Also check how far the microwave face will sit from the surrounding cabinet.

For the Frigidaire GMBS3068BF, the stated cutout is 24 3/4 in wide, 20 in deep and 16 3/4 in high. Those dimensions describe the cutout for that appliance, so use the matching instructions for any other model.

Is a filler kit the same as a trim frame?

No, a filler kit covers an open gap, while a trim frame is part of a built-in microwave installation. Bagean and Tatuo offer side panels; the Frigidaire Gallery kit includes a front frame and installation pieces.

Do not use a gap panel to replace a model-specific frame unless the microwave manufacturer approves that setup. For a separate over-the-range appliance, read what a 30 inch over-the-range microwave is before choosing trim.

What if the cabinet opening is wider than 30 inches?

A wider cabinet may leave side gaps that filler panels can cover, but the panel size must match the space. Tatuo suggests its 3 in panels for a 30 in appliance in a 36 in cabinet, while Bagean suggests a 30 in microwave in a 36 in opening.

Measure each side and confirm panel depth and height. If the gap is larger or the cabinet width differs, a 36 inch microwave filler kit may help you compare another size.

When should you choose a cart instead?

Choose a cart when you want the microwave freestanding and do not need a built-in cabinet finish. A trim kit changes how an appliance fits into cabinetry, while a cart gives the microwave a separate surface.

Check the cart's usable top dimensions and weight capacity before placing the microwave on it. A trim accessory will not solve a lack of counter or storage space.

Which 30 inch microwave trim kit should you choose?

Choose the Frigidaire GMBS3068BF with its matching 30 in trim kit if you want a model-linked built-in setup. Choose Tatuo or Bagean when you need measured side panels for a wider opening, and pick an LG kit only after confirming its microwave model number.

For RV use, match the CONTOURE or Furrion kit to its named microwave. If your priority is the best 30 inch microwave trim kit for a standard home installation, use the appliance maker's model-specific instructions as the final fit check.

Our top 3 picks at a glance

1. 1
   Best for a matching built-in setup

   Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft.

   9.6/10 our score

   See it on Amazon
2. 2
   Best for a 30 in microwave in a wider cabinet

   Tatuo 2 Pcs Stainless Steel Microwave Trim

   9.5/10 our score

   See it on Amazon
3. 3
   Best for a Frigidaire 27 in installation

   Frigidaire Gallery 27 in. Trim Kit GMTK2768AF

   9.4/10 our score

   See it on Amazon

Frequently asked questions

Are 30 inch microwave trim kits universal?

No, a 30 inch label alone does not confirm that a trim kit fits your microwave. Kits can be designed for a specific model, while side panels may cover gaps without providing the same frame or installation parts.

Check the microwave model, opening dimensions and kit instructions before you order.

What size trim kit do I need for a 30 inch microwave?

Start with the microwave's exact model number and the manufacturer's recommended trim kit. Then measure the cutout width, height and depth, plus the cabinet opening.

A pair of 3 in side panels can cover a gap in some wider cabinets, but they are not a substitute for a model-specific built-in kit.

Can I use a 30 inch trim kit with any countertop microwave?

No. A trim kit may be made for one brand or a limited set of microwave models, even if its outer width is 30 in.

For example, LG's MK2030NST is a 30 in trim kit, while the Frigidaire Gallery trim options are tied to its built-in microwave.

Confirm compatibility by model number.

What is the difference between a trim kit and a filler kit?

A trim kit frames a microwave for a built-in installation and may include parts such as a frame, duct or mounting rail. A filler kit or side panel covers a cabinet gap beside an appliance.

Check the installation instructions to see which job the accessory is made to do.

How do I measure for microwave trim?

Measure the cabinet opening's width, height and depth, then compare those numbers with the microwave cutout and trim kit requirements. Also note how far the microwave sits from the cabinet face.

Use the appliance model number to confirm the correct kit, since matching only the opening width can still leave an incompatible installation.