How Wide Should Fireplace Hearth Be

So how far should a fireplace hearth come out? InterNACHI recommends that for fireplaces that have an opening of 6 square feet (0.56 square meters) or smaller, a hearth should extend at least 16 inches (406mm) out into the room from the opening, and by at least 8 inches (203mm) away from the sides.

How wide does a fireplace hearth have to be?

Basic Hearth Dimensions To keep fire, ashes and embers a safe distance from the floor in front of a fireplace that has an opening 6 square feet or smaller, the hearth should extend at least 16 inches in front of the fireplace opening. The hearth also needs to extend 8 inches to each side of the opening.

How big should my hearth be?

The hearth must extend at least 300mm to the front and 150mm to either side. It must be at least 12mm thick. It must be made from non-combustible materials. It must also cover a minimum area of 840 x 840mm.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.

Share this article
Twitter Facebook Pinterest