Measuring your Masonry Fireplace
Masonry
Masonry material has been a fireplace method for centuries. Anything that must be mortared together is considered masonry. Since they are built by hand, no two masonry fireplaces are exactly alike.
While brick and ceramic are the most common materials used for the internal or working components of a masonry fireplace, the face material can also include stone, marble, granite, travertine, and tile.
Because masonry fireplaces are human-made, and due to a home settling over the years, there are bound to be subtle differences in the measurements at different areas of your fireplace. Therefore, we need to make sure we have measurements in multiple areas of your fireplace.

You'll need to measure the width of your masonry fireplace in 3 spots.
A1: The width of your firebox at the top.
A2: The width of your firebox in the center.
A3: The width of your firebox at the bottom.

You'll need to measure the height of your masonry fireplace in 3 spots.
B1: The height of your firebox on the left side.
B2: The height of your firebox in the center.
B3: The height of your firebox on the right side.
When submitting your measurements for your fireplace door, use the SMALLEST measurement from the width and the SMALLEST measurement from the height as your firebox measurements.

Hearths can be at various levels. The diagram here shows the different ways your firebox can place a hearth. We need to know where concerning your fireplace your hearth is.
- Correctly measure width and height with a non-stretchy tape measure.
- The fireplace mounting surface must be level.
- The fireplace door opening must be square and level.
- The opening must have enough mounting surface on top and bottom.
- Note the highest and lowest points on your fireplace opening. Example - The lintel bar sits lower than the brick.
- Determine the width of your fireplace opening by measuring top, middle, and bottom.
- Determine the height of your fireplace opening by measuring the right side, middle and left side.
Measuring your Masonry Fireplace
Masonry
Masonry material has been a fireplace method for centuries. Anything that must be mortared together is considered masonry. Since they are built by hand, no two masonry fireplaces are exactly alike.
While brick and ceramic are the most common materials used for the internal or working components of a masonry fireplace, the face material can also include stone, marble, granite, travertine, and tile.
Because masonry fireplaces are human-made, and due to a home settling over the years, there are bound to be subtle differences in the measurements at different areas of your fireplace. Therefore, we need to make sure we have measurements in multiple areas of your fireplace.

You'll need to measure the width of your masonry fireplace in 3 spots.
A1: The width of your firebox at the top.
A2: The width of your firebox in the center.
A3: The width of your firebox at the bottom.

You'll need to measure the height of your masonry fireplace in 3 spots.
B1: The height of your firebox on the left side.
B2: The height of your firebox in the center.
B3: The height of your firebox on the right side.
When submitting your measurements for your fireplace door, use the SMALLEST measurement from the width and the SMALLEST measurement from the height as your firebox measurements.

Hearths can be at various levels. The diagram here shows the different ways your firebox can place a hearth. We need to know where concerning your fireplace your hearth is.
- Correctly measure width and height with a non-stretchy tape measure.
- The fireplace mounting surface must be level.
- The fireplace door opening must be square and level.
- The opening must have enough mounting surface on top and bottom.
- Note the highest and lowest points on your fireplace opening. Example - The lintel bar sits lower than the brick.
- Determine the width of your fireplace opening by measuring top, middle, and bottom.
- Determine the height of your fireplace opening by measuring the right side, middle and left side.