Fireplace Door Learning Center

When broken down, understanding fireplace doors and their options are quite simple. Here we will cover the basics of how to measure your fireplace opening to ensure a perfect fit of your new fireplace doors. We will also cover the different types of fireplace door fits as well as common types of fireboxes one would find in their home.

Types of Common Fireplaces

A firebox with no hearth.
(Window Mount)

No Hearth - Floating Fire Box
No Hearth - Floating Fire Box Side Diagram

The firebox floor is level with the top of the hearth.

Level Hearth -  Fire Box Even
Level Hearth -  Fire Box Even Side View

The firebox floor is below the top of the hearth.

Fire Bed Below Hearth -  Front View
Fire Bed Below Hearth -  Side View

The firebox floor is higher than the top of the hearth.

Fire Bed Above Hearth -  Front View
Fire Bed Above Hearth -  Side View

Fireplace Door Fit Styles

Overlap Fit (Most Popular):

The Overlap Fireplace fit is very similar to the Flush Fit except there will be a 2″ trim that overlaps your fireplace surround. For instance; If you have a fireplace with a stack stone surround, 2 inches of the surround around the perimeter of your firebox will be covered by the fireplace door Overlap. This is our most popular style as it covers any gaps or imperfections around the perimeter of the firebox. (See Diagrams Below.)

Flush Fit:

The entire fireplace frame and doors will fit perfectly inside of your firebox and surround, aligned with your surround material. For instance; if you have a smooth/marble surround, the front of the fireplace door will fit evenly with the front of the marble. It will not protrude out further than your surround/marble and it will not set inside of your surround/marble. (See Diagrams Below.)

Inside Fit:

Much like it sounds, the fireplace frame and doors will be placed inside of your surround. The depth depends on how deep your firebox is inside of your surround. The depth could potentially be 1″ – 3″ respectfully. (See Diagrams Below.)

Side View

Color Coordinate with Above Diagram

Side View

Color Coordinate with Above Diagram

Side View

Color Coordinate with Above Diagram

How to Measure Your Fireplace Opening

Locate the width and height of your fireplace opening and measure them both. Once completed, submit the smallest measurement for both the width and the height of your fireplace opening. IMPORTANT: Several measurements may need to be taken to locate the shortest width and height of your fireplace opening.

Rectangular Fireplace Opening

  • Measure the top width of your firebox.
  • Measure the middle width of your firebox.
  • Measure the bottom width of your firebox.
  1. Measure the height of the left side of your firebox.
  2. Measure the height of the middle of your firebox.
  3. Measure the height of the right side of your firebox.

Arched Fireplace Opening

  • From Where the Arch Begins, measure the top width of your firebox.
  • Measure the middle width of your firebox.
  • Measure the bottom width of your firebox.
  1. Measure the height of the left side of your firebox from the beginning of the arch to the bottom of your firebox opening.
  2. Measure the height from the middle, top of the arch to the bottom of your firebox.
  3. Measure the height of the right side of your firebox from the beginning of the arch to the bottom of your firebox opening.