How high should a mantel be above a gas fireplace?
As a general rule, a mantel is placed about 12 inches above the fireplace opening. Add an inch to the distance for every inch that the mantel protrudes. So, a mantel 6 inches deep would be attached 18 inches above the firebox opening.Click to see full answer. In this way, how high should a mantel be from the floor? Standard Mantel Height Again, “proper” height is relatively subjective to your fireplace, but average or standard fireplace mantel height construction is around 54” above the hearth’s floor.
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