How Deep Should A Mantle Be?
A depth of 7 inches is ideal for most mantels, as it allows plenty of room to accommodate decorative objects. Keep in mind that the top and the sides of the mantel should be the same depth. First, use a measuring tape and pencil to measure and mark the mantel top to size.
How far should a mantle stick out?
A mantel should stick out at least 6 inches (15.24cm) from the wall. It’s the perfect depth that allows you to have a mantle effectively deflect heat without compromising aesthetics. You can extend it to have more depth for your decorative pieces, but we don’t recommend having it less than 6 inches (15.24cm).
