Prefab Fireplace Doors
If you own a prefabricated (or “prefab”) fireplace, finding the right set of doors is essential for both safety and style. Unlike traditional masonry fireplaces, prefab fireplaces are factory-built metal fireboxes designed to be installed in walls and paired with a metal chimney. Because they’re manufactured differently, they require prefabricated fireplace doors or zero clearance fireplace doors that are specifically designed to fit.
Whether you’re looking for a subtle inside-fit door, a full refacing to update the look, or a custom build to match your exact dimensions, we offer the largest selection of prefab fireplace doors online - all proudly made in the USA.
How to Tell If You Have a Prefabricated Fireplace
Before shopping for doors, it’s important to know what type of fireplace you own. Many homeowners aren’t sure if they have a masonry fireplace or a prefab fireplace. Here are some quick ways to identify a prefab unit:
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The firebox is made of metal panels, not brick.
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A manufacturer’s tag or plate is usually located inside the firebox, on the side walls, or behind the screen.
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Prefab fireplaces are typically paired with a metal chimney system rather than a brick chimney.
If you’re still unsure, checking for the manufacturer’s tag is the best way to confirm. This tag will help you find the correct replacement doors. See the image below for reference. If you need help identifying your fireplace you can always contact us.
Most prefabricated (factory-built) fireplaces are vented units, however they are also available in direct vent and vent-free models. These models require specific types of replacement doors in order to remain code compliant.
Direct Vent Units
A direct vent fireplace is a sealed combustion unit designed for gas fuel. It features a solid, fixed glass panel that creates a closed system, ensuring all combustion air is drawn from outside and exhaust gases are vented outdoors. Browse our direct vent fireplace door category to see compatible options.
Vent-Free Units
A vent-free prefabricated fireplace is a factory-built unit designed to burn gas cleanly enough that no chimney or venting system is required. They rely on oxygen depletion sensors and other safety controls to maintain safe indoor air quality. Vent-free or ventless prefabricated fireplaces cannot use glass doors, however we do offer mesh doors for vent-free fireplaces which are code compliant.
Why Prefab Fireplace Doors Are Essential
Prefab fireplaces are designed for efficiency and safety in small, enclosed spaces. Installing the correct door type ensures your fireplace performs as intended. Here are a few reasons why the right fireplace doors for prefab fireplaces are worth the investment:
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Safety – Zero clearance fireplace doors are engineered to fit tightly and safely inside prefab units.
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Style – Outdated prefab fireplaces can look worn. New doors or a refacing can completely transform your living space.
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Energy Savings – Properly fitted doors reduce drafts, keeping warm air in during the winter and cool air in during the summer.
Measuring for Prefab Fireplace Doors
One of the biggest concerns customers have is how to measure their prefab fireplace opening. Getting this step right is crucial for a proper fit. Check out or How-to video or follow the steps below.
Steps to Measure:
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Measure the height and width of the firebox opening.
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Note whether your current doors are mounted inside the opening or as a surface-mounted surround.
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Check for the manufacturer’s tag - this can confirm dimensions and model compatibility.
If you’re not sure, our team is here to help. Send us your measurements and photos, and we’ll confirm which doors will fit your fireplace.
Standard vs. Custom Size Prefab Doors
Not every prefab fireplace requires a completely custom door. For many brands and models, we offer aftermarket replacement doors that are built to the correct fixed size based on your fireplace’s manufacturer and model number.
Here’s how it works:
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Standard (Aftermarket) Doors – Our standard doors are aftermarket replacements - not OEM products, made in the USA to fit specific fireplace models. Using your fireplace’s brand and model number ensures you get the correct size without needing to measure or guess. Select your brand below to find your model number replacement door.
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Custom Doors – If your fireplace model isn’t in our database, or if you’d like more style, finish, or glass options than the standard aftermarket replacements offer, we can build a fully custom prefab door tailored to your exact measurements and preferences. All overlap style doors are custom made to order. Browse our categories below for custom size prefab doors.
Installation & Support
Worried about installation? Most prefab fireplace doors are designed for easy DIY installation using just a few basic tools. All of our fireplace doors come with the necessary mounting hardware and installation instructions, and are made to be easily installed by the homeowner.
Common installation concerns we help with:
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Will my new doors fit my existing prefab fireplace?
Yes, we have a robust order verification process which means we review your picture and dimensions to confirm before the door enters production.
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Do I need professional installation?
In most cases these doors can be installed by the homeowner. The majority of our prefabricated fireplace doors come with pre-drilled mounting holes, which allow the door to be secured into the firebox opening with 4-5 screws.
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Can I replace old prefab doors myself?
Absolutely, and we can help walk you through the process. Whether you need help removing your old door or measuring for a new one, we are here to help!
Why Buy Prefab Fireplace Doors from Us
When it comes to fireplace doors for prefabricated fireplaces, we set ourselves apart:
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Largest selection online of standard and custom prefab doors.
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Made in the USA – every door is built with quality craftsmanship.
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Styles and price points for every budget, from simple black frames to fully customized designer doors.
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Expert support to help with measuring, choosing, and installing your doors.
With us, you can shop confidently knowing you’ll get the right door, the right fit, and a beautiful upgrade for your prefab fireplace.
Shop Prefab Fireplace Doors Today
Finding the right fireplace doors for prefab fireplace units doesn’t have to be complicated. Whether you’re replacing your original setup with fireplace doors for prefabricated fireplaces or upgrading with fully custom doors for prefab fireplace models, our U.S.-made options ensure lasting quality and safety. With the largest online selection and a team ready to help, you can feel confident that the perfect door for your fireplace is just a few clicks away.
If you’re unsure where to start, contact our team - we’ll guide you through the process of choosing the right prefab fireplace doors for your home.
Frequently Asked Questions
Q: How do I know if I have a prefabricated fireplace?
A: Prefab fireplaces have a metal firebox and usually a metal chimney. Look inside for a manufacturer’s tag or model plate.
Q: What are “standard” prefab fireplace doors?
A: These are aftermarket replacements made in the USA to fit specific brands and models. Just match your fireplace’s brand and model number to order the correct replacement door.
Q: When do I need custom prefab doors?
A: Choose custom prefab doors if your model isn’t in our database, your tag is missing, or you want more finishes and style options.
Q: Do I need to measure?
A: Yes, even if you are purchasing a model number replacement door. In that case you still want to measure your opening to ensure it matches what we have on file. You will need to provide your fireplace opening width and height when ordering a custom size door as well.
Q: Can I install prefab fireplace doors myself?
A: Yes. Most doors are designed for easy DIY installation with basic tools.
Q: Are prefab fireplace doors safe?
A: Yes, when you use zero clearance doors designed for prefab fireplaces. Avoid masonry doors, which aren’t safe for prefab units.
Q: Do you have budget-friendly options?
A: Yes. We offer a wide range of aftermarket and custom prefab fireplace doors to fit different budgets and styles.
