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Inside Fit Rainbow Zero Clearance Fireplace Door

You may need to remove the track to install the fireplace door, so measure accordingly. You will need to measure the fireplace opening in three different places, both vertically and horizontally to the nearest 1/16". Enter the smallest size into the price calculator.


INSIDE FIT (inside firebox opening)

When the fireplace door is smaller than the opening of the fireplace, and fits inside the fireplace opening. Measure the width and height of the inner steel opening where the fireplace door will fit. This will be the same position that the fireplace manufacturer's door was installed. DO NOT measure the finishing material in front of the fireplace (brick, stone, marble, tile, etc). Always use the exact MINIMUM measurements for both height and width when ordering a replacement fireplace door.


DO NOT make adjustments to sizes, we need the EXACT OPENING size

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Gate mesh adds 1 1/8" of depth. Please verify that you have enough opening depth before ordering (door depth + mesh depth).
INSET DEPTH This is the distance from the face of the zero-clearance fireplace to any existing obstruction inside the opening. The inset depth affects the amount that the enclosure will fit into the opening. For example, the Door frame is 1-1/8” deep. If the inset depth is 1”, the face of the enclosure will protrude 1/8” from the firebox.
If no images are submitted with your order, it will be placed on hold until we receive a photo of your fireplace. Please send your image to [email protected].

The Rainbow Zero Clearance Fireplace Door: Where Luxury Meets Convenience. The fireplace stands as the heart of the home—a gathering place for food, drink, conversation, and warmth. Since 1956, Hearth Craft fireplace doors have been the top choice for homeowners seeking quality designs that reflect the personality of their homes.


Diverse Configurations: The Rainbow door offers versatile configurations with 4” handles and options for Bifold, Twin, or Gate Mesh (No Glass), allowing you to tailor the door to your preferences.

Glass Options: Choose from 3/16" tempered glass in Clear, Grey, or Bronze, providing a clear view of the mesmerizing flames and enhancing the aesthetic of your fireplace.

Powder Coat Finishes: Customize your Rainbow door with a choice of ten powder coat finishes, including Ancient Age, Mahogany, Bronze, Textured Black, Toffee, Vintage Iron, Natural Iron, Polished Brass, Rustic Black, Satin Nickel, allowing you to match your fireplace with your unique style.

Frame Design: The Rainbow features a sturdy 5/8" wide aluminum extrusion frame with an eight-degree taper, combining durability with a sleek and modern design.

Optional Gate Mesh: For luxury and convenience, the Rainbow door offers an optional Gate Mesh. Full-fold doors open 180° for enhanced viewing and are available in trackless bi-fold or cabinet styles. Gate mesh adds 1 1/8" to the overall door depth. If your opening does not have enough depth, do not order the gate mesh. 

Air Flow: Between each glass pane is a 1/4 inch gap, ensuring appropriate air flow for your fireplace.

Easy Cleaning: The Rainbow door is easy to clean, providing a hassle-free maintenance experience.

Luxury, convenience, and style converge in the Rainbow Zero Clearance Fireplace Door by Hearth Craft. Elevate your fireplace experience with a door that not only warms your space but also enhances its visual appeal. Choose Rainbow for a perfect fit and a perfect view.


  • Fireplace Type: Prefab Wood Fireplaces or Prefab Wood Fireplaces Converted To Vented Gas Logs
  • Door Fit: Inside
  • Door Type: Trackless Full Fold Bi-Fold Doors | Full Fold Cabinet (Twin) Doors
  • Frame Material: Aluminum Extrusion Frame With An Eight Degree Taper
  • Frame Size: 1" Wide x 1" Deep
  • Finish Colors: Ancient Age | Mahogany | Natural Iron | Rustic Black | Satin Nickel | Solar Bronze | Textured Black | Toffee | Vintage Iron | Polished Brass | Satin Nickel
  • Glass: 3/16" Tempered Safety Glass
  • Glass Tints: Clear
  • Ceramic Glass: N/A 
  • Spark Protection: Optional
  • Damper: N/A
  • Airtight Option: N/A
  • Assembly: Comes Fully Assembled
  • Mounting: Hardware Included
  • Safety Listing: UL127 | Majestic OEM Door
  • Lead Time: 4 Weeks


A Guide to Measuring for Your New Prefab Fireplace Door: Ensure a Perfect Fit

Enhancing the ambiance of your living space with a new prefab fireplace door is an exciting endeavor, but the key to a seamless installation lies in precise measurements. To achieve the perfect fit and maximize the visual appeal of your fireplace, follow our step-by-step guide on how to measure for your new prefab fireplace door. Remember, accuracy is crucial, especially if you need to remove the track during installation.

1. Identify your fireplace type.

  • Distinguish whether your fireplace is Masonry or Prefab. For Prefab fireplaces, locate the model number and manufacturer. Typically, Prefab fireplaces feature a metal plate positioned on the front or just inside the firebox, occasionally found inside above the opening. This plate contains crucial details, including the brand and specific model number of your fireplace. Including these details when you submit your order aids us in crafting the accurately sized door for your fireplace.

2. Understand Inside Fit:

  • Before diving into measurements, it's essential to understand the concept of an inside fit. An inside fit means the fireplace door is smaller than the opening and fits inside the fireplace opening. This is crucial information for accurate sizing.

3. Gather Your Tools:

  • Tape measure
  • Notepad and pen
  • Level (optional but recommended for accuracy)
  • Considerations to Keep in Mind Before Purchasing a Prefab Replacement Door. 

4. Considerations to Keep in Mind Before Purchasing a Prefab Replacement Door: 

Things To Watchout For Before Ordering A Door

5. Measure Vertically:

  • Start by measuring the height of the inner steel opening where the fireplace door will fit. Place your tape measure at the top edge of the opening and extend it down to the bottom. Take three measurements at different points vertically. Record each measurement to the nearest 1/16". Note that you should measure the steel opening and not the finishing material in front of the fireplace, such as brick, stone, marble, or tile.

6. Measure Horizontally:

  • Move on to measuring the width of the inner steel opening. Place your tape measure at the left edge of the opening and extend it to the right. Similar to the vertical measurements, take three horizontal measurements at different points. Again, record each measurement to the nearest 1/16".

7. Determine the Smallest Size:

  • Of the measurements you've taken, identify the smallest width and height values. These will be your crucial dimensions for ordering a replacement fireplace door. The smallest size ensures a snug and secure fit within the inner steel opening.

8. Enter Measurements into the Price Calculator:

  • When ordering your prefab fireplace door, enter the exact MINIMUM measurements for both height and width into the Fireplace Doors Online price calculator to get your final price without additional options. This guarantees that the door perfectly fits the steel opening, just like the original manufacturer's door.

9. Special Note for Track Removal:

  • If your installation requires the removal of the track, be sure to measure accordingly. Take into account the space freed up by the removed track when measuring horizontally.


10. Not Sure On How To Measure?

  • If you're uncertain about the proper measurements for your fireplace, no worries! Simply capture a photo of your fireplace and click on the provided link to receive a free quote. Our team will assist you in determining the accurate dimensions and guide you through the process, ensuring a seamless and hassle-free experience. Your satisfaction is our priority, and we're here to help you achieve the perfect fit for your fireplace door.

By following these detailed steps, you're on your way to securing the right measurements for your new prefab fireplace door. Achieving a flawless fit ensures not only an aesthetically pleasing upgrade but also optimal heat efficiency. Enjoy the warmth and beauty of your revamped fireplace!

Understanding the Distinct Differences: Why Masonry Fireplace Doors Can't Be Used on Prefab Fireplaces

The allure of a warm, crackling fire is a timeless joy, and many homeowners seek to enhance this experience by adding fireplace doors. However, when it comes to choosing the right door for your fireplace, it's crucial to recognize the differences between masonry and prefab fireplaces. Specifically, understanding why you can't use a masonry fireplace door on a prefab fireplace is essential to avoid potential complications and ensure a safe and efficient setup.

1. Structural Variances:

Masonry fireplaces and prefab (pre-fabricated) fireplaces are constructed using distinct materials and methods. Masonry fireplaces are typically built on-site using bricks, stones, or other masonry materials. In contrast, prefab fireplaces are factory-built, often using lightweight metal components. The structural variances between the two types result in significant differences in their design and heat distribution.

2. Heat and Safety Considerations:

Prefab fireplaces have specific design features to manage heat efficiently. These features include air gaps and insulating materials designed to keep the outer surfaces cooler, reducing the risk of overheating. Using a masonry fireplace door on a prefab fireplace may compromise these safety features, leading to potential hazards due to increased heat levels.

3. Fit and Compatibility:

Prefab fireplaces are manufactured with precise dimensions and specifications. Masonry fireplace doors are not interchangeable with prefab fireplaces due to the differences in sizing, design, and installation requirements. Attempting to fit a masonry door onto a prefab fireplace may result in an ill-fitting, insecure door that fails to meet safety standards.

4. Ventilation Requirements:

Prefab fireplaces are engineered with specific ventilation requirements to ensure proper combustion and the release of gases. Masonry doors may obstruct these ventilation channels, compromising the fireplace's functionality and safety. Prefab fireplace doors are designed with the necessary vents to facilitate proper airflow and combustion.

5. Material Compatibility:

Masonry fireplace doors are often crafted from heavier materials to withstand the intense heat generated by traditional masonry fireplaces. Prefab fireplaces, being lighter in construction, require doors made from materials that can withstand the unique conditions of their design. Using a masonry door on a prefab fireplace may result in premature wear, warping, or damage to the door.


The differences in construction, heat management, sizing, ventilation, and material compatibility make it impractical and unsafe to use a masonry fireplace door on a prefab fireplace. Homeowners seeking to enhance their prefab fireplace should opt for doors specifically designed and approved for prefab installations. Doing so ensures not only a visually appealing addition but also maintains the safety and efficiency of the fireplace system. Always consult with a fireplace doors online professional for guidance on choosing the right doors for your specific fireplace type. Alternatively, utilize our snapshot quote form below for personalized assistance.

Here's how to get a speedy custom quote for your fireplace door:

  1. Snap a photo of your fireplace using your phone, tablet, or digital camera.
  2. Complete the form below and upload your photos (up to three).
  3. Our fireplace door experts will assess your pictures, identify your fireplace type, and, based on your provided measurements, curate a list of doors that align with your home and budget.
  4. Anticipate a response from our friendly customer service team member within 1 business day, delivering your personalized recommendations!

Snapshot Quote Form - Click Here

How To Install Fireplace Door  

Manufacturer's Warranty

Manufacturer warrants the glass enclosures to be free from defects in material and workmanship for a period of one (1) year from the date of installation. Manufacturer warrants the metal work (exclusive of the finish) contained in the glass enclosures to be free from defects in the materials and workmanship for a period of two (2) years from the date of installation. Discoloration of any frame piece is caused by over firing and is considered abuse of the enclosure.

Manufacturer will, however, replace without cost any glass that breaks in normal use. Manufacturer will cover shipping cost for replacement glass for a period of one (1) year from the date of installation. Warranties also are not transferable to new owners.  The foregoing limited warranty is not transferable by the customer and does not include the eventual defects caused by improper use or operation of the glass enclosure or by normal wear and tear. Manufacturer agrees that if the glass enclosure is determined to be defective in manufacture within the applicable written guarantee period set forth above, and the customer provides a written notice of such defects within fourteen (14) days of the end of such period to the customer’s local dealer, Manufacturer is limited to defects in manufacture, and Manufacturer shall not be responsible if the glass enclosure has not been used at all times with reasonable care and in accordance with the instructions which accompany each glass enclosure, and/or if any attempt has been made by any person other than Manufacturer or its authorized agents to repair, alter or otherwise interfere with the foregoing undertaking of Manufacturer is limited to the replacement of any determined by Manufacturer to be defective.
Finally, the enforceability of this limited Warranty shall be further subject to compliance with the following requirements:
A. That the customer complies with the instruction set forth above and does not misuse, abuse, alter, or modify the glass enclosure.
B. That the customer does not use the glass enclosure for a purpose other than its intended use.

The limited warranty set forth above, is expressly in lieu of any other warranties, express or implied, including without limitation any warranty of merchantability or fitness for particular purpose, whether express or implied, and lieu of any other obligation or liability on the part of Manufacturer. Whether under theories of contract, tort or negligence, Manufacturer, shall have no liability for any consequential, incidental or special damages by reason of any act or omission, whether negligent or not, arising out of or in connection with the glass enclosure or its sale, delivery, installation, maintenance, operation, performance, or use, including without limitation any loss of use, damage to associated property or the facility, or any other similar and dissimilar losses, cost.

Fireplace doors are hand crafted to the specifications of each order. Due to the nature of the anodization process on aluminum doors, and the plating/powder coating process on steel doors, slight variations in color may occur and will not be considered a warranty issue.

I had to send you an email to tell you how pleased I am with the fireplace doors you made for me. They fit perfectly - installation was simple. We are so happy with this. Thank you - they look great! The local company that I asked to help me with this told me they were too busy to call me back after my initial call for help. I am so happy that happened; now I have very nice looking fireplace doors and it didn't cost half of what they would have charged me if they weren't too busy. Thanks again!

Great product & great service!

Awesome service and product, couldn't be happier. The custom doors that I ordered fit like a glove and came earlier than expected. If you need replacement or custom made doors for your fireplace, get them here.


I just received my fireplace door and installed it. It fit like a glove.

It's beautiful - thanks very much.

I would put a post up on twitter, yelp, or some other site if I knew how, but I just want to tell you how satisfied we are with your product. The ordering was simple, and the customer service was very helpful when I realized I made a mistake measuring. The product exceeded our expectations; shipped nicely, it was easy to install (fit like a glove), and is high quality (looks great).

Thank you,

Thank You So Much for your help.
You are the Best !

If the fireplace is measured correctly on all four sides of the opening, the door is very simple to install. The measurements May vary a bit because the openings or not perfectly symmetric. The company will help you decide which numbers to use. My son install them with ease. They were beautiful and we are very happy and pleased.

Everything worked great. It's nice to get great quality items, makes installing these items easy. Thanks again, we can use our fireplace again.

The doors came well packed. Had them installed in about 15 minutes. They look great.

I just want to say I have received my fireplace door and it was perfect, I have been looking for a year now for the perfect fireplace door and couldn't never find it, either the price was too high or didn't deliver or it didn't fit when I received it. I just want to say thank you, my wife and I love it and it was very very easy to install, it took like 5 to 10 mins to put it on.

Thanks Again,

Cedric M
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Last updated on January 9th 2024.



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