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DIY Fireplace Built Ins

Home Improvement

12 Jan

I’ve been working on updating my living room one project at a time and I’m so excited to share this tutorial with you on how I created my DIY Fireplace Built Ins with Ikea Billy Bookcases.

White Ikea Billy Bookcase Fireplace Built In Storage

For my tutorial on building a DIY Overmantle you can click here.  

This space had a few trouble spots that I had to work around.  First, my mantle is flush with the wall.  I did not want to build large bumped out cabinets from floor to ceiling as this would take away from the fireplace being the focal point of the room.

Eventually I will add floating shelves or some other decorative item over the cabinets to give them a more finished look.  There is a window on the right side of the room, which prevented me from bringing the cabinets flush to the right wall and I have two wall switches that I did not want to move up.  So I designed this space using 11 inch deep cabinets with the final height of 43 3/4 inches tall.  I left a gap on both sides to compensate for the window and keep them symmetrical.

This post contains affiliate links, which means I make a small commission at no extra cost to you. See my full disclosure statement here.

MATERIALS

  • (4) Ikea Billy Bookcases
  • (8) Oxberg Doors
  • (6) 1x4x8 Pine Board (cut into scrap blocks for base molding)
  • (1) MDF Panel (cut into strips of (2) @ 12.25″ and 2 @ 12″)
  • (2) 11/16 Cove Molding
  • (2) 3 1/4″ Base Molding
  • Primer
  • Paint – I used Behr Snowy Pine

TOOLS

  • Miter Saw
  • Table Saw
  • Jigsaw
  • Sander
  • Brad Nailer
  • Clamps
  • Drill
  • Caulk Gun
  • Paint Brush
  • Wood Filler
  • Wall Anchors
  • Stud Finder
  • Level
  • Oscillating Tool

ASSEMBLE CABINETS

My husband and I assembled the cabinets the day they arrived.  We just followed the step by step directions included in the box.  After assembling them, we moved them into place and they sat there for about 4 weeks. 🙂  

White Ikea Billy Bookcase Fireplace Built In Storage

POSITION AND MARK FOR WALL ANCHORS

Finally, I got around to working on them.  The first step was to place the cabinets exactly where you want them on the wall.  Measure for spacing.  Then mark the position for the wall anchors through the inside of the cabinet.  Move the cabinet and mark the studs with a stud finder.   If no stud is available, drill a hole slightly smaller than your anchor and tap it into the wall.  Place a washer onto the screw and drive the screw through the “L” bracket and into the anchor.  The “L” brackets, screws and washers came with the cabinets.  If you have a wall outlet now is the time to measure the location and cut it out with an oscillating cutter.

White Ikea Billy Bookcase Fireplace Built In Storage

Slide the cabinets back into place, feeding the anchors through the holes in the back of the cabinets.  If your base molding is 3 1/4″, the bookcases will fit over top of them.  If they are taller, you can build a platform under your cabinet or remove the base molding.  Check the top of your bookcases for level.  I had to place shims under them to bring them to level. (Image 1 Below)  Now you can fasten the “L” brackets to the inside of the cabinets.

Tips to install DIY built in bookcases.

CLAMP AND JOIN CABINETS TOGETHER

Attach the 1 X 2 to the cabinet with a clamp and drill a hole a little smaller than your cabinet screw.  (Image 2 Above)  My favorite screw to join cabinets together are these.  These trim screws go in so nice and countersink themselves.  (Image 3 above)  I attached each side of the cabinet with three screws.

CUT AND ATTACH BASE MOLDING

I added some blocking under the cabinets to  support my base molding. (See image below)  I also added a thin strip of wood to fill in the gap at the top of the base molding.  Then I measured and cut my moldings.  The ends of the new base molding were cut to fit over the old ones and caulked.  Finally, I installed them with an 18 gauge brad nailer.

How to Install built in cabinets.

CUT AND INSTALL THE HEADER

I notched out the header piece of molding so it fit flush with the top of the bookcases.  (See Image Above)  I wanted to bring them up to a specific height and add a thick crown type look to the top of the bookcases.  Then I glued and attached them to the bookcases.  One in front, one in back and three short pieces for support down the middle.  This created a rectangle to place my MDF on.

SAND MDF AND INSTALL

The nice guys at Home Depot cut my MDF into (2) 12″ X 8′ strips and (2) 12 1/4″ X 8′ strips.  Then I brought them home and sanded the edges smooth and nailed them into place.  (See Image Below)  Lastly, I added the cove molding.

Crown molding effect on top of bookcases.

Here it is finished…

Finished Crown Molding effect on top of bookcase.

CAULK, FILL HOLES AND PAINT

Finally, I caulked all of  cracks and filled all nail holes with wood filler.  The MDF was primed and then painted with two coats of Behr Snowy Pine.  The color is not an exact match, but it was good enough for me. You may want to take one of the doors and have it color matched at Home Depot.

White Ikea Billy Bookcase Fireplace Built In Storage

Do you like learning budget friendly ways to spruce up your home? Follow me on Pinterest, so you don’t miss a thing! Also, did you know that you can hover over any photo image, click on the red Pinterest circle, and save it to your DIY Projects board on Pinterest? Give it a try below.

DIY living room fireplace surround with Ikea Billy Bookcases.
White DIY Fireplace Built Ins

I’m looking forward to organizing all that extra storage and decorating!  Let me know what you think in the comments.  Is this a project that you would tackle?  Did this give you some ideas?  I hope you found it helpful!

RELATED POSTS

HOW TO BUILD AN OVER-MANTLE
DIY FARMHOUSE DOOR TRIM
DIY WINDOW TRIM
IKEA HOME OFFICE

6 Comments

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Comments

  1. Anonymous says

    April 26, 2020 at 6:20 PM

    I have this exact fireplace! I have been wondering what to do with it for the last 18 years. You have given me the inspiration to accomplish this task. My only difference with this project is that I will have to work it to fit into a 2 story vaulted ceiling. With the ceilings at 9 feet on one side of the room, I think I’ll put it at nine feet. It has looked so lonely in the middle of the wall all by itself. 😉 Thank you for helping me with a plan!

    Reply
    • Laura says

      April 27, 2020 at 9:33 AM

      I’m so glad you found it helpful! I would love to see a picture of your project, when it’s completed. A two-story room would make it a little more of a challenge. Best wishes!

      Reply
  2. Erin Arndt says

    June 9, 2020 at 1:45 PM

    I would love to see a post on base moulding to compliment the door and window trim.

    Reply
    • Laura says

      June 9, 2020 at 8:20 PM

      Hi Erin. That would be a helpful post to write. I did all of the base molding on my first floor seven years ago. When we update our second story flooring, I will do a post then. I like to write the projects as I actually do them, it helps me remember all of the details and not miss any steps. Thank you for the suggestion.

      Reply
  3. Andrea says

    June 11, 2020 at 9:30 AM

    Great post! My husband and I are thinking about adding built-in bookcases on either side of our brick fireplace. I’ve been struggling with a new color for the walls that would complement our brown leather sofas and cherry TV stand/end tables. When I saw your post, I immediately fell in love with the soft blue on your walls! The colors in your furniture are similar to what we have in our room. Do you remember what brand and color paint you used for your walls? Thanks so much for sharing these helpful tips!!

    Reply
    • Laura says

      June 11, 2020 at 2:17 PM

      Hi Andrea. The wall color is Planetary Silver by Behr with a satin finish. I do love the color. It changes with the light. During the day it looks more blue and in the evening it looks more grey. It does go nicely with brown and grey-beige.

      Reply

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About Me Photo - Laura at Heart Filled Spaces

Welcome friend! I’m Laura and I’m so glad you stopped by! When I’m not busy being a wife & mom, I spend my free time designing, creating and finishing projects. I love painting furniture, easy woodworking projects, and I’m an avid crafter. It’s my desire to create a warm and cozy home and inspire you in your own journey.

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