Installing A Newport Fireplace Mantle

By Robert Robillard on Finish Carpentry

How To Install A Fireplace Mantle

Almost a year ago I posted that the best referral sources are the businesses that sell to the same target customer.

This mantle job was a referral from my friend and fellow contractor Mark O’Lalor from O’Lalor Painting.

Non-competing businesses like your sub-contractors; electrician, plumber, painter, decorators, architects, lumberyard sales people, landscape contractor, etc., are your best chance for continual referrals.

I get more jobs from referrals like my painter friend , Mark at O’Lalor Painting, than almost any other source! I in turn refer him as well. Just as we try to attract the end user of our services we should be educating, motivating and soliciting referrals from our fellow tradespeople.

O'Lalor Painting

Installing A Newport Fireplace Mantle Project

This job consisted of removing a 2″ thick blue stone fireplace hearth and surround and replacing it with 1 1/4″ Cambrian black polished granite and then Installing a Newport fireplace mantle.

Newport Fireplace Mantle in a Box

The mantle comes in a box, broken down into six parts that attach fairly easily.

Below is the left leg of the mantle.

This is the top shelf of the mantle.
The top shelf has a pair of holes on each end that accept pins set into each leg. The pins are secured with “break down” furniture screws and then nailed together.

Close up of the assembly pins.

Assembly Takes Minutes

Mantle assembled on the floor prior to install.


Dry Fit First

Dry fitting the mantle to the wall to determine what I needed for granite coverage. I decided on a 12″ granite surround.  This gave me about 2″ more than I needed but ensures that there is an overlap behind the mantle as well as overlapping coverage at the fireplace opening.

Removing the Old Fireplace Surround

This is the old blue stone fireplace surround and hearth.

After taking precautions for dust I began using a hammer chisel to take off the 2″ thick stones ~ they were heavy!

recycled material

Most of the stones came off relatively easy.

The hearth in the floor was more difficult to remove. I wanted to get it out in one piece so I could recycle it. But ended up breaking approx 10″ off one edge.

I squared off and cut the broken edge side so that it was a straight piece.

Here’s how I recycled the stones, check out my post: Recycled fireplace materials.

New Fireplace Surround and Hearth

Today the granite company showed up. I use Interior Stone and Tile out of Waltham, Mass. They do nice work and have a great showroom for sending customers to.

Cory is preparing the hearth stone. It was a bit to big and had to be trimmed on one edge.

The hearth stone receiving thin set mortar prior to being dropped in place.

The opening in the oak floor is approximately 1″ deep. Here Cory is troweling in thin set mortar for the hearth stone.

I had to trim the outside oak edge a bit with a block plane prior to setting this stone, but once done it fit like a tight glove!

A Completely NEW Look

Setting the hearth.

The vertical legs to the surround were applied with thin set mortar and plumbed on the wall.

Setting the head piece on the surround granite. This top piece is also mortared to the fireplace wall but the vertical legs hold all the weight.

Here Cory is plumbing the legs and making sure the leg and head piece seams are flush. Later he will add black epoxy to all the seams and more thin set to the back side, where the granite meets the the the fireplace opening.


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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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