Outdoor Masonry Fireplace Dimensions

The firebox design is critical.

Outdoor masonry fireplace dimensions.

Figure 1 shows details and table 1 provides the widths and heights of fireplace. Next you will build your firebox to whatever size you have chosen using firebrick and refractory cement from your local masonry supply. Here is a photo of a new masonry firebox in my own home. The rear wall of the firebox rises vertically from the floor of the fireplace and then begins to slant towards the fireplace opening just at the top of the gas logs.

Outdoor fireplaces can be as small as four feet tall three feet wide and two feet deep. Proper detailing and construction can also contribute to the overall performance of the fireplace. By using our outdoor fireplace kits you can still achieve your custom look but can be assured the guts of your masonry outdoor fireplace kit is built correctly. The firebox depth does not include the thickness of the facing material you see when looking at the fireplace.

I suggest 4 solid block for this purpose. While larger fireplaces complete with mantel and hearth built in seating and wood storage boxes can be as large as 15 feet tall 15 feet wide and 4 feet deep. Brick masonry residential fireplaces can be made more energy efficient by providing a source of combustion and draft air drawn from the exterior of the structure. The fireplace opening is a very important element in fireplace design.

Technical notes 19a residential fireplaces details and construction rev may 1980 reissued jan.