Finding the right trim kit can transform a cluttered countertop into a sleek, built-in look. This guide focuses on trim kits that fit standard 22-inch openings or similar dimensions, helping you achieve a seamless, professional kitchen appearance. Below you’ll find five solid options from trusted brands, each with key features to help you compare quickly.
Summary of Selected Products
| Product | Brand | Notes |
|---|---|---|
| Samsung Microwave Oven Trim Kit, Stainless Steel, MA-TK8020TS/AA | Samsung | Premium built-in look; fits certain Samsung models |
| Frigidaire Gallery Series GMBS3068BF Trim Kit (sold separately) | Frigidaire | 27″ and 30″ options; built-in kit available separately |
| NN-TK922SS 27-inch Trim Kit | Pewoaoa | Stainless steel; designed for 2.2 cu ft built-ins |
| Whirlpool W11451304 Genuine OEM Trim Kit | Whirlpool | Converts standard countertop microwave to built-in |
| FMSML09-BL-TK Furrion Trim Kit | Furrion | Designed for 0.9 cu ft microwaves |
Samsung Microwave Oven Trim Kit, Stainless Steel

The Samsung MA-TK8020TS/AA trim kit offers a premium, built-in appearance that integrates with select Samsung microwave models. This kit is designed to provide a seamless, architectural look by aligning with surrounding cabinetry. It is especially suitable for users seeking a cohesive kitchen aesthetic with stainless steel accents and clean lines. Ensure model compatibility with MS19M8000AS/AA or related units to maximize fit and performance.
Frigidaire Gallery Trim Kit For Built-In Microwaves

Frigidaire’s GMBS3068BF trim kit is sold separately and works with built-in configurations in 27-inch (GMTK2768AF) and 30-inch (GMTK3068AF) openings. The 2.2 cu. ft. microwave provides ample space for larger dishes, supported by built-in sensors that adjust power and cook time for consistent results. This option suits kitchens aiming for a roomy, integrated microwave setup with smart cooking features.
NN-TK922SS 27-inch Microwave Trim Kit

The NN-TK922SS trim kit from Thiadrs is designed for 27-inch built-in microwaves with a 2.2 cu ft capacity. Crafted from premium stainless steel (304-grade), it resists rust and fingerprints. The kit emphasizes a sleek, professional kitchen look and includes a multi-row vent design to help prevent overheating, supporting long-term durability and a clean finish around your built-in microwave.
Whirlpool W11451304 Genuine OEM Trim Kit

Whirlpool’s W11451304 is a genuine OEM trim kit designed to convert a countertop microwave into a low-profile built-in. The kit aligns with specific Whirlpool models such as WMT50011KS, WMT55511KS, and KMBT5511KSS, ensuring compatibility and optimal performance. The OEM designation emphasizes adherence to Whirlpool’s engineering standards for a reliable, integrated look.
Furrion Trim Kit For 0.9 Cu Ft Microwave

The Furrion FMSML09-BL-TK trim kit is designed specifically to create a built-in look for 0.9 cu ft microwaves. Its aluminum construction provides a lightweight yet sturdy frame that integrates with cabinetry for a clean, contemporary kitchen aesthetic. It’s a suitable option for compact built-ins where space optimization is a priority.
2 Pieces Stainless Steel Trim Kit (Tatuo)

This two-piece stainless steel trim kit by Tatuo provides a space-saving solution for gaps around under-cabinet microwaves. It includes screws and a straightforward installation process, helping to cover unsightly space while matching stainless appliances. It’s well-suited for homeowners seeking a simple, durable filler for various kitchen layouts.
Buying Guide
Key considerations for selecting a microwave trim kit include size compatibility, cabinet opening measurements, and the microwave’s model requirements. Start by confirming the trim kit’s intended interior opening (in inches) and whether it aligns with 22-inch, 27-inch, or other standard widths. Consider the following factors to make an informed choice:
- Size and fit: Ensure the kit’s width, height, and depth match your cabinet opening and microwave dimensions. Some kits are universal while others are model-specific.
- Material and finish: Stainless steel finishes resist fingerprints and rust, offering a durable, factory-like appearance. Check corrosion resistance and maintenance needs for long-term aesthetics.
- Vent design: A trim kit with built-in vents or thoughtful airflow helps prevent overheating and supports appliance longevity.
- OEM vs aftermarket: OEM kits are designed by the original brand for guaranteed compatibility, while aftermarket options can be more affordable but may require careful verification.
- Installation effort: Consider whether the kit requires professional installation or if a DIY approach is feasible with basic tools and clear instructions.
- Aesthetic alignment: Look for a clean, cohesive finish with your cabinets and other stainless appliances to achieve a seamless kitchen look.
- Warranty and support: Check warranty terms and availability of customer support should installation questions arise.
While evaluating options, compare compatibility notes and installation steps across brands. For instance, some Frigidaire or Whirlpool kits specify an exact fit with their own product lines, while universal stainless steel kits offer broader applicability but may require precise measurement and trimming. Always measure the cabinet opening, check clearance for door swing, and verify that the microwave’s venting design won’t be obstructed by the trim kit.
Additionally, consider the overall kitchen workflow. If you frequently replace or upgrade microwaves, a modular trim kit with easy removal can be advantageous. For a high-end, built-in look, prioritize kits that mirror the finish and material of your oven lining and surrounding cabinetry. In spaces with limited depth, a low-profile trim kit can maximize countertop clearance without compromising ventilation or accessibility.