Oven Fillers, Trim, & Side Extensions

Stainless steel double wall oven built into white kitchen cabinets with black handles, enhanced by custom trim kits for wall ovens for a seamless, polished look.
Aluminum Oven Filler
Double wall oven with stainless steel finish, digital display, control knobs, and Custom oven filler for Wall Ovens in a sleek white kitchen setting.
Stainless Steel Oven Filler

Oven Fillers

Oven Fillers are designed to close gaps above or below a wall oven when the existing cabinet opening is taller than the new replacement unit. These fillers provide a clean, finished look while eliminating the need for costly cabinet modifications or refacing.

Oven Trim Kits

Oven Trim Kits are designed for installations where the cabinet opening is wider or taller than the new wall oven and a full surround is needed. These kits create a clean, built-in appearance and eliminate the cost and labor of replacing or refacing existing cabinetry to fit the new appliance.

Stainless steel Bosch microwave and oven, enhanced with custom trim kits for wall ovens, built into sleek white kitchen cabinetry.
Stainless Steel Single Oven Trim Kit
Stainless steel double wall oven built into white kitchen cabinetry, complemented by Custom Trim Kits for Wall Ovens.
Brushed Aluminum Double Oven Trim Kit
A stainless steel microwave oven is built into wooden kitchen cabinetry, enhanced with custom side extension for wall ovens, and features a digital display showing the time.
Microwave Side Extensions
Double KitchenAid wall oven and microwave unit with digital displays in a stainless steel finish, compatible with custom side extension for wall ovens.
Oven Side Extensions

Side Extensions

Side Extensions are custom panels designed to cover an oversized cabinet width or align an appliance’s width with another unit above or below it. Commonly used with Built-in Coffee Makers, Microwave Drawers, Wall Ovens, and Speed or Steam Ovens, they provide a clean, integrated appearance for any built-in installation.

Oven Filler & Trim Kit Finish Options

Stainless Steel vs. Aluminum Comparison

Feature

True Stainless-Steel Trim Kit

Aluminum Trim Kit

Material

18-gauge 304 stainless steel

High-quality aluminum

Finishes Available

True Stainless only

Black, White, Stainless finish

Construction

1 solid piece

Multi-Piece trim

Profile Thickness

Matches oven profile for a flush fit

Fixed 7/16"

Installation

Mounting brackets & magnetic installation

Fastened with Screws

Look & Feel

Seamless, professional, built-in appearance

Professional, built-in appearance

Best For

Premium kitchens, high-end remodels

Cost-effective, kitchen remodels

How to Get a Quote

Choose install type

Select a worksheet page from the directory below that matches your appliance installation type.

Measure your space

Download and open the Measurement Worksheet to record all required dimensions for your project.

Complete the form

Return to the Measurement Worksheet page to find the corresponding Order Request Form. Use your measurements and upload photos (optional) to complete the form.

Talk to a real person

When we receive your Order Request Form, one of our experts contacts you to review your project and provide a quote.

STEP 1: Select a Worksheet

Click on a drawing or name below to open the page and download a worksheet to record the measurements for your order request.

Need help with your quote? Give us a call (800) 338-8746

Frequently Asked Questions

Most homeowners don’t install oven trim kits themselves because the oven’s weight and installation requirements can make it difficult. However, oven fillers are simple to install — the oven is typically already in place before the filler is added, so there’s no heavy lifting involved.

Yes. All Micro-Trim trim kits, filler and vent panels, are heat-resistant and safe for appliance use.

Aluminum fillers are 7/16″ thick. Stainless fillers range from 7/8″ to 1½″+ thick depending on profile.

Use our online, or printable, measuring worksheets in the Measure Worksheet Directory. Your project worksheet guides you through what to measure.

A trim kit surrounds the appliance on all sides to cover perimeter gaps, while a filler panel is used above or below an oven to fill a vertical height gap.

For Cooktop, Oven and Range Fillers and Trim Kits

  • Brushed Aluminum (“Stainless Finish”)
  • Semi-gloss, powder-coated Black
  • Semi-gloss, powder-coated White
  • True Stainless Steel

Side extensions are used when a narrower appliance is installed above a wider one, creating a uniform overall width.

Most homeowners don’t install oven trim kits themselves because the oven’s weight and installation requirements can make it difficult. However, oven fillers are simple to install — the oven is typically already in place before the filler is added, so there’s no heavy lifting involved.

Yes. All Micro-Trim trim kits, filler and vent panels, are heat-resistant and safe for appliance use.

Aluminum fillers are 7/16″ thick. Stainless fillers range from 7/8″ to 1½″+ thick depending on profile.

Use our online, or printable, measuring worksheets in the Measure Worksheet Directory. Your project worksheet guides you through what to measure.

A trim kit surrounds the appliance on all sides to cover perimeter gaps, while a filler panel is used above or below an oven to fill a vertical height gap.

For Cooktop, Oven and Range Fillers and Trim Kits

  • Brushed Aluminum (“Stainless Finish”)
  • Semi-gloss, powder-coated Black
  • Semi-gloss, powder-coated White
  • True Stainless Steel

Side extensions are used when a narrower appliance is installed above a wider one, creating a uniform overall width.