Inside Fit Prefab Fireplace Doors
If you’re looking for a custom solution to upgrade your prefabricated fireplace, our inside fit fireplace doors are the perfect choice. Designed to fit flush within your firebox opening, these doors are built to order so you get a seamless fit and a clean, finished look. Every option in this category is custom made to match your exact measurements and style preferences, making them the ideal replacement for prefabricated fireplace doors and zero clearance fireplace doors.
What Are Inside Fit Prefab Doors?
Inside fit doors are designed to sit neatly inside the opening of your fireplace rather than overlapping the outer edges. This style is the most common for factory-built fireplaces, which is why inside fit fireplace doors are considered the standard for prefabricated fireplaces. If you own a zero clearance fireplace, this type of fit is almost always the correct and most budget-friendly solution.
Product Options & Customization
Our inside fit fireplace doors are fully custom and made to order to fit your exact fireplace opening. You don’t need to know a model number or brand, all measurements are based on the width and height of your outer firebox opening. This means you still have plenty of ways to personalize the look of your door:
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Powder Coat Finishes – choose from durable standard finishes or upgrade to premium colors for a more decorative touch.
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Glass Tints – clear, grey, or bronze glass to complement your home’s style.
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Door Styles – bifold or cabinet doors depending on how you want your fireplace to function.
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Handle Styles – multiple handle designs to match your décor.
If you’re ordering model number replacement doors, these typically offer fewer options and finishes. For maximum flexibility, our fully custom doors allow you to personalize the finish, glass, and style.
Fit & Installation Guide
Because these are full frame replacement doors, they install directly within the fireplace opening and do not rely on existing OEM tracks or brackets. When measuring for new doors, always measure the outer fireplace opening - not deep inside the firebox.
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If your fireplace has tracks at the top or bottom from the original doors, these can often be removed.
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If the tracks cannot be removed, simply measure the opening height between the tracks.
Accurate measurements are essential since each set of zero clearance fireplace doors is custom built to your dimensions. Be sure to check our measuring guide to ensure you measure your fireplace correctly.
Benefits of Inside Fit vs. Overlap Fit
The majority of prefabricated fireplaces are designed for inside fit doors, which makes them the most cost-effective option. That’s why most homeowners choose prefabricated fireplace doors that are designed to sit flush within the opening. By contrast, masonry fireplaces usually use overlap fit doors that extend over the outer edges of the firebox.
While most prefab units are not built with overlap doors in mind, many can be adapted for three-sided or four-sided overlap installations depending on whether the firebox sits flush with the hearth or raised above it. However, for most customers, inside fit fireplace doors remain the budget-friendly, standard, and recommended solution.
Limitations
Because these doors are custom size and made to order, customers will need to provide accurate measurements of their fireplace opening. This applies to all inside fit fireplace doors as well as other types of zero clearance fireplace doors. Certain fireplaces may also have construction restrictions that limit the types of doors that can be installed. If you have a more complex fireplace or aren't comfortable determining which door is best, simply fill out a Snapshot Quote. We will review your information and pictures, and send you a variety of compatible options to pick from!
Why Choose Our Inside Fit Doors?
- Custom built for a perfect fit every time
- Wide range of finishes, styles, and glass options
- Durable construction designed for years of use
- Cost-effective compared to overlap alternatives
- Expertly crafted and backed by our team’s experience with prefab fireplace doors
Whether you need inside fit fireplace doors or another style of prefabricated fireplace doors, our team ensures you get the right fit the first time. With custom craftsmanship and attention to detail, your new doors will upgrade both the look and performance of your fireplace.
Frequently Asked Questions
Q. What is the difference between inside fit and overlap fit fireplace doors?
A: Inside fit doors install inside the firebox opening for a flush look, while overlap doors extend over the edges. Prefab fireplaces almost always use inside fit.
Q. How do I measure my prefab or zero clearance fireplace for inside fit fireplace doors?
A: Measure the width and height of the outer opening. If your unit has top or bottom tracks that can’t be removed, measure between them.
Q. Do these doors work with any prefabricated fireplace or zero clearance fireplace?
A: Most prefabricated fireplaces can accept inside fit doors, though some models have restrictions. Providing accurate dimensions ensures a proper fit.
Q. Can I replace my old OEM doors with custom inside fit doors?
A: Yes. Our doors are full frame replacements and do not rely on OEM tracks or brackets.
Q. Are inside fit prefab doors more affordable than overlap doors?
A: Yes. Inside fit is generally the most budget-friendly option and the default choice for prefab fireplaces.