Finding the right bump out kit helps create a clean, seamless look when installing over-the-range microwaves. The following selections focus on compatibility, durability, and ease of installation, helping you fill gaps and align appliances with surrounding cabinetry. Each option is designed to fit common cabinet depths and 30-36 inch openings, with materials that resist wear and rust for long-term use.
| Product | Brand | Approx. Fit |
|---|---|---|
| Whirlpool Genuine OEM 15″ Bump Out Kit | Whirlpool | 15″ bump out for deep cabinets |
| 8171339 Microwave Filler Kit 15.75″ L x 10.9″ W x 3″ H | Obida | Various brands, universal trim |
| 2 Pieces Stainless Steel Microwave Trim Kit 3″ Wide | Tatuo | 15.75″ H x 11″ D, stainless |
| Microwave Filler Kit 2.95” Wide Stainless Steel | Bagean | 2.95” wide filler for 30″ or 36″ openings |
| 304 Premium Stainless Steel Snack Containers | sagact | Not a trim kit, stainless utility |
Whirlpool Genuine OEM 15″ Bump Out Kit

Whirlpool’s OEM bump out kit is designed specifically for Whirlpool appliances and meets engineering standards for your microwave installation. It provides a precise solution for cabinets deeper than 13 inches and up to 15 inches, making it suitable for traditional and low-profile hood configurations. The kit is intended for use with conventional microwave hoods to achieve a flush, integrated look.
8171339 Microwave Filler Kit For Over-the-Range Ovens

This filler kit offers compatibility with multiple brands, including Panasonic, Whirlpool, GE, and LG. Its universal design is suitable for scenarios where cabinet gaps must be covered, with dimensions that fit common 30″ and 36″ configurations. The kit aims to provide a simple, scalable solution for converting uneven spaces into a clean, integrated kitchen appearance.
2 Pieces Stainless Steel Microwave Trim Kit

These stainless steel trim kits include two pieces plus mounting screws, designed to fill gaps and provide a sleek, cohesive look between the microwave and cabinetry. The 15.75″ height and 11″ depth align well with standard 30″ to 36″ opening configurations. The stainless construction offers durability and rust resistance for long-term kitchen use.
Microwave Filler Kit 2.95” Wide Stainless Steel

This filler kit covers the space where a slimmer over-the-range microwave sits within a wider cabinet opening. The 2.95″ width fits 30″ to 36″ configurations, while its stainless steel finish blends with many appliances. It helps create a seamless edge and reduces visible gaps around the unit.
304 Premium Stainless Steel Snack Containers

While not a trim kit, these stainless steel containers offer durable, rust-resistant storage options for the kitchen. Made from 304 stainless steel with silicone lids, they provide a practical complement to a well-organized cabinet area near a microwave or in adjacent pantry space, helping maintain a cohesive, modern look in the kitchen.
Buying Guide: Key Considerations For Microwave Bump Out Kits
- Cabinet depth and opening width: Measure cabinet depth and the microwave opening to ensure a bump out kit will fit without obstructing doors or drawers. Common fits target depths from 13 to 15 inches and openings around 30-36 inches.
- Material and finish: Choose stainless steel or coated materials for durability and rust resistance. A matching finish helps the bump out blend with the microwave and surrounding cabinetry for a seamless appearance.
- Compatibility: Check model compatibility, especially if the kit is branded (e.g., Whirlpool OEM). Universal filler kits offer broader compatibility across brands but may require more precise measurement.
- Installation ease: Look for kits that include hardware and clear installation instructions. Some kits require professional installation, while others are DIY-friendly with simple screw-in mounting.
- Aesthetics vs. function: Decide whether you prioritize a flush, integrated look or additional space for ventilation and airflow. Some bump outs also influence hood alignment and cabinet clearance.
- Durability and maintenance: Consider corrosion resistance and ease of cleaning. Stainless steel options typically withstand kitchen moisture better over time.
- Cost and availability: OEM parts may command a premium but offer guaranteed fit, while universal trim kits can be more budget-friendly with broader compatibility.
This collection provides a cross-section of bump out kits and compatible fillers designed to address common cabinet-depth gaps and 30-36 inch openings. Each option is evaluated for material quality and practical fit, helping users choose a solution that aligns with their microwave model and cabinet configuration.