DIY Custom Fireplace Surround

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Vintage Mantel DIY THe Honeycomb Home - WMRemember a few weeks ago I showed you how to seal chipping paint?  The paint I was sealing was on a vintage mantel I found at a flea market.  Right after I sealed the paint, we began a living room makeover.  This makeover was on the lighter side, without any major construction (yet).  The only project we did here was to build a DIY custom fireplace surround for the mantel.  Today I wanted to share with you exactly how we did that in case you come across any amazing old mantels or want to DIY your own.

I should mention this isn’t a functional fireplace, obviously.  It’s purely decorative and provides a pretty focal point for my living room that can be switched out as easily (and as often) as I change my mind.

You Will Need*:

Laser Level

Multi Max Tool (to cut existing molding)

Stud Finder

A Large Piece of MDF, sized to mantel

1 X 2 X 6’s for frame

1 X 6 X 6’s

Cordless Drill

Prep the Wall:

We have a chair rail molding in this room, so we needed to remove a section of that, as well as a section of the baseboard molding.   (Truth be told, for some reason the baseboard on this wall wasn’t actually attached to the wall.  Which worked out in this case because we didn’t have to remove that piece.)   Find and mark the center of your wall.  Next, measure out from that center spot where the two ends of your mantel will be and mark those as well.  You should have 3 marks, each end of the mantel and the center of the wall .

How to built a custom fireplace surround

 

For the existing moldings, you will need to cut out the width of your mantel using the two end spots you marked.  We aligned our laser level line with the two end marks and used a multi max tool to cut the molding in these two spots.  Remove that section of molding.

How to Build A DIY Custom Fireplace Surround

Now that the wall is prepped, add your back piece (we used MDF) to the wall, which you need to cut (or have Home Depot cut for you) to the same dimensions as your mantel.   We used a stud finder to mark where the studs are, and marked that line with the laser level.  Screw the back board on to the wall in those spots.

Step by Step guide to building a custom fireplace surround

From here, there are several ways you can go about it.  You could just attach your mantel to the backboard but there are a few reasons we didn’t do that.  I wanted the mantel opening to have more depth for adding decor.  Secondly, my vintage mantel is fragile and I didn’t want to nail through it if possible.  So my husband came up with a plan to build a frame that the mantel could fit in to, like a big puzzle piece.   We used 1 X 2 X 6’s (which are actually 1.5″ wide, I’ll never understand why that is).  The top of my mantel is 7.5″ in depth , add the 1.5″ and my mantel top will come out from the wall 9″.  We have a rather small living room, so I didn’t want it to jut out too far.

How to make a surround for a vintage fireplace 3

 

My husband attached the wood pieces in a frame that echos the mantel.  Then he added support pieces, as shown below.

How to build a frame for a antique mantel (4)

 

We used 1 X 6 X 6 wood to frame out each column.  We also cut two more pieces to go across the back of the top half of the mantel.  You see in picture 4 above, one of them in the frame.  We were just making sure it fit in the frame in that photo.  We added two of those to the back of the mantel, shown below.  We nailed those to the back of the mantel.  Those are the only nails we put through the mantel itself.

How to build a custom fireplace surround for a vintage mantel

 

After attaching those two boards, we set the mantel into the frame of our fireplace surround, fitted like a puzzle piece.    Then we screwed nails from the sides of the frame into those boards on the back of the mantel.  This way most of the nails and screws are in the frame and not in my mantel.

building a custom fireplace surround

 

Finishing Details

Since the mantel had a decorative piece of trim around it, we had to figure out how to continue that on each side where we added the frame.   The problem was we had to match the detailing on the existing mantel, (circled below.)  The arrow shows the piece we added.

matching trim on a vintage mantel

We were  not able to find any trim in Home Depot that matched this exactly, but we did find this piece which was exactly right except for the etching.  We were able to use it by just sanding off the etching as you can see below,

Building a fireplace surround for a vintage mantel

 

Once that was in place, I needed to stain all of the wood in the fireplace surround that we built to blend with the mantel.  We went to Home Depot and my husband picked Varathane Wood Stain in Briarsmoke,  which matched perfectly to the exposed wood on our mantel.  I like this stain color so much that I’ve already used it on other things.

building a fireplace surround

 

We also wanted to add a hearth underneath of our decorative mantel, so we left a gap between the bottom of the frame we built and the floor.    We used two pieces of oak stacked on top of each other because it fit perfectly.  My husband added a finishing piece of wood around the sides of the hearth pieces so that you cannot tell its 2 pieces of wood stacked.

how to build a fireplace surround and a hearth

 

Lastly, I covered the MDF wood with removable whitewashed brick wallpaper.  I love that this can be switched out when I get tired of it, I already know what I’m doing next, lol.

diy fireplace with faux brick backing

 

When I bought the mantel my intent was to fill it with books like I did in my daughter’s dorm house makeover.  In the meantime, I received this Metal Filigree Arch Wall Decor from Antique Farmhouse that was originally for my daughter’s bedroom makeover.  It looked so perfect in the fireplace that I decided to keep it here instead.

how to build a custom fireplace surround for a vintage mantel - this one was found at a flea market

 

I’m still working on a few finishing details that I didn’t have time for in the living room makeover.   Hopefully next year we will install new vinyl plank flooring in place of the carpeting and add board and batten to the walls.

How to seal chippy paint and build a custom fireplace surround for a vintage mantel diy fireplace

 

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25 thoughts on “DIY Custom Fireplace Surround

  1. Absolutely stunning! I have a faux fireplace I just shared on my Instagram last week and getting ready to change up my real fireplace some too. Pinning away these gorgeous images!

  2. This looks fantastic Roxanne! I like that you were able to come up with a solution that allows you to move and change it if ever you want to! Very smart! And the whitewashed brick wallpaper is such a cool touch!

  3. Your fireplace looks amazing! I’m thinking about doing something similar to my place, because I think fireplaces make any house cozier and more elegant. Thank you for sharing the details!

  4. Your hubby did a fabulous job of making the fireplace look like it was there all along. Neat trick with sanding off the design to match the decorative woods.
    That metal filigree arch steals the show! It’s gorgeous! Can’t wait to see what you have in mind next for your new fireplace! #merrymonday

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