Best Trim Kits for Around the Fireplace: Stylish Fillers for Inset Fires
Finding the right trim kit can dramatically improve the look of an electric fireplace by filling gaps and creating a seamless wall-to-firebox transition. This guide focuses on popular trim kits designed to fit around various electric fireplaces, helping you pick options that blend with metal, black finishes, and modern decor. Below is a quick summary of five top picks with key dimensions to help you compare at a glance.
| Product | Brand | Overall Dimension | Hole Dimension | Notes |
|---|---|---|---|---|
| Masarflame Trim Kit | Masarflame | 44.5″W x 32.1″H x 0.0″D | max 44.5″W x 32.1″H | Expands up to 5.8″ per side |
| Rodalflame Trim Kit for 32.99″W x 24.92″H | RODALFLAME | 41.9″W x 29.5″H x 0.7″D | 30.3″W x 23.6″H | Easy install, covers gap |
| Kentsky Trim Kit | Kentsky | 39.4″W x 29.5″H x 0.7″D | 30.5″W x 24.9″H | Durable powder-coated metal |
| Velaychimney Trim Kit | Velaychimney | 44.5″W x 32.1″H x 0.79″D | 32.9″W x 26.3″H | Minimalist black finish |
| Dreamflame Trim Kit | Dreamflame | 44.55″W x 32.1″H x 0.7″D | 32.95″W x 26.3″H | Three-panel metal construction |
Masarflame Trim For 36”×27” Electric Fireplace

The Masarflame trim kit is designed as a metal-framed expansion solution for Masarflame inserts. With an overall size of 44.5 inches by 32.1 inches, it accommodates holes within this maximum footprint and offers a 5.8-inch expansion on each side. This kit helps bridge gaps when the fireplace opening is slightly smaller than the wall opening, delivering a clean, steel-finished look that complements modern interiors without obstructing heat output.
Rodalflame Trim Kit For 32.99″ W x 24.92″ H

The Rodalflame trim kit offers an overall frame of 41.9″W x 29.5″H x 0.7″D, with a hole dimension of 30.3″W x 23.6″H x 0.7″D. It’s tailored for Rodalflame size-matched fireplaces and is designed to cover gaps between the wall opening and the fireplace while delivering a sleek black metal appearance. The kit includes all hardware for straightforward installation, helping you achieve a polished finish quickly.
Kentsky Trim Kit For 30.5″ W x 24.9″ H

The Kentsky trim kit combines a durable powder-coated metal construction with a sleek, modern design. Its overall footprint is 39.4″W x 29.5″H x 0.7″D, while the included insert dimensions are 30.5″W x 24.9″H x 6.5″D. This kit is built to withstand heat exposure and everyday use, offering a contemporary finish that blends well with most electric fireplace inserts and room décors.
Velaychimney 44.5″ Trim Kit For Electric Fireplace

The Velaychimney trim kit is designed to cover the gap between the wall opening and the firebox with a 44.5″W x 32.1″H frame and a slim 0.79″ depth. Its three-piece configuration provides a clean, minimalist finish, with compatibility limited to fireplaces that align precisely with the kit’s size. The black finish complements a wide range of contemporary interiors and provides a cohesive look with similar black-inset fireboxes.
Rodalflame Electric Fireplace Trim Kit For 30″ W x 25″ H

This trim kit measures 39.4″W x 29.5″H x 0.7″D with a wall-gap-covering design, specifically for Rodalflame-compatible fireplaces. It includes all hardware for quick installation and a sleek black metal finish designed to blend with most mantels and wall materials. It’s positioned as an efficient solution to seamlessly integrate the fireplace with surrounding decor while maintaining a low profile.
Dreamflame Trim Kit For 36Inch Fireplace Inserts

The Dreamflame trim kit features a 44.55″W x 32.1″H exterior with inner dimensions of 32.95″W x 26.3″H. The metal construction includes three panels designed to assemble like a puzzle, finishing with screws to match the fireplace. It is intended to cover gaps effectively and provide a balanced, dark aesthetic that complements most black-framed fireboxes, while the included hardware ensures a straightforward setup.
Buying Guide: Key Considerations For Choosing A Fireplace Trim Kit
When selecting a trim kit to surround an electric fireplace, consider fit, material, finish, and installation.
- Fit and sizing: Compare the overall dimensions and hole dimensions to ensure a proper fit around your specific fireplace opening. Measure width, height, and depth before purchasing.
- Material and finish: Most trim kits use metal with powder-coated finishes (often black). Choose a finish that matches or complements your fireplace and room decor to create a cohesive look.
- Depth and clearance: Some kits are shallow (around 0.7–0.8 inches) and are designed for wall gaps; ensure the kit won’t interfere with mounting hardware or venting components if present.
- Ease of installation: Look for kits that include all necessary hardware and clear instructions. Some are designed for quick, tool-less assembly, while others require a few screws and a drill.
- Brand compatibility: Some trims are designed to fit specific fireplace models. If your insert is from a particular brand, verify the trim kit’s compatibility with that line to avoid mismatch.
- Aesthetics: Decide between a minimalist black metal look or a more finished frame that can be painted or polished to match your interior style.
- Durability and heat resistance: While trims do not generate heat, they should tolerate nearby heat exposure. Powder coatings help resist scratches and wear from daily use.
Overall, the right trim kit offers a clean, seamless transition between the wall and the fireplace, reduces visible gaps, and enhances the aesthetic appeal of the room without obstructing operation or airflow. Compare the five options above for overall dimensions, hole compatibility, material quality, and installation complexity to determine which best matches your fireplace model and home style.