Introduction
So if you’ve read my previous article Build a Rustic Style Faux Beam Mantel, then you’ll know that I built a new fireplace mantel to replace the one I built 20+ years ago. If not and you’re interested in seeing how I this mantel then use the link above to read more about it. Since this beam appears to float and has no supports then how can I inexpensively mount this to my stone fireplace? I could purchase hidden hardware but that can get expensive. Why not build one?
Floating mantels have become a stylish and functional addition to many homes, providing an elegant way to display decor or provide storage without the need for visible supports. Building a floating mantel support bracket may seem challenging, but with 2×4 materials and some basic tools, it’s a project any DIY enthusiast can tackle. In this guide, I’ll walk you through how to build a strong and sturdy floating mantel support bracket using affordable 2×4 lumber.
Materials and Tools Needed
Before diving into the project, you’ll need to gather some essential materials and tools. Here’s a handy checklist to make sure you’re prepared.
*Disclaimer: While I attempt to list the equipment I use, some items have been discontinued or have newer models.
Materials:
- 2×4 lumber (enough to build your support bracket)
- Screws (at least 3-inch length)
- Masonry anchors (if not screwing into studs)
- Titebond II Glue
- Paint or wood stain (optional)
Tools:
- Level
- Screwdriver or screwdriver bit set
- Stud finder
- 4 Way Wood Rasp File (optional)
- Craftsman 10″ Table saw (with upgrades)
- Gates AK25 Light Duty Pulley
- Grizzly Industrial T21992 – Power Twist V-Belt
- DEWALT Sliding Compound Miter Saw, 12-Inch (DWS779)
- Kobalt 24-Volt Max Lithium Ion (Li-ion) 1/2-in Cordless Brushless Drill
- Kobalt 25-ft Tape Measure
Preparation
Proper preparation is key to any successful project. Here’s how to get started:
Measuring the Mantel Space
Start by measuring the space where you plan to install the mantel. You’ll want to know the length, depth, and height of the mantel, as these measurements will determine the size of your 2×4 frame and support bracket as the frame will need to slide inside of the mantel.
Cutting the 2×4 Boards to Size
Once you have your measurements, it’s time to cut the 2×4 boards to size. For a standard mantel, you’ll need one long piece for the bracket that will mount to the wall and several shorter pieces to create support pieces that stick out horizontally from the wall. Be sure to cut carefully and double-check your measurements before cutting as the entire assembly will need to fit inside of your mantel. While I used a miter saw for speed when cutting my 2×4 material you can easily use a circular saw or handsaw.
Creating the Support Bracket
Now that your wood is ready, it’s time to start building the support bracket itself.
Assembling the Mounting Bracket
The frame is what provides the structural integrity of your floating mantel. Lay out the 2×4 pieces for the wall mount of the frame, and then evenly space the shorter piece supports. You can use wood glue to hold everything in place temporarily, but be sure to reinforce the structure with screws. I did not use wood glue but the glue will provide some additional strength to the joint.
Attaching the Bracket to the Wall
Now that your bracket is assembled, it’s time to attach it to the wall.
Locating the Wall Studs (if attaching to a wall)
Use a stud finder to locate the studs in your wall. Studs are essential because they provide the necessary support to hold the weight of your mantel. Mark the studs and align your bracket accordingly.
Securing the Bracket with Screws
Once you’ve positioned the bracket, use 3-inch screws to secure it to the studs. If the studs don’t line up with your bracket, use wall anchors for additional support.
Mounting to Stone or Masonry Surfaces
If your surface is not flat you may need to file down some edges with a wood rasp. This is what I needed to do with my stone fireplace. I had predrilled the holes for the lag bolts in my shop knowing exactly where they would go in the stonework – namely, two existing holes and two new holes that were going to be drilled into the mortar.
Drill Your Holes
Drill the holes into the fireplace. It’s important to keep in mind local fire codes for combustible material. You’ll need to ensure your mantel bottom is at or above the minimum distance from the top of your fireplace. I chose to use two existing holes and the two additional holes I drilled directly into the mortar using a hammer drill with a concrete bit. You’ll want to ensure your holes are level when you drill them, otherwise, you’ll need to shim your mantel to keep it looking level.
Securing the Bracket with Screws
Once you’ve positioned the bracket, use 3-inch lag screws to secure it to the inserts you should have put into the holes. Be sure to tighten the lag screws down thoroughly as this will be providing the necessary to support for your mantel as well as any decor you may put on it.
Installing the Mantel
Once the bracket is securely mounted, it’s time to install the mantel.
Sliding the Mantel Onto the Bracket
With the bracket in place, carefully slide your mantel over the bracket frame. The mantel should fit snugly and may require some adjustment to ensure a proper fit. You may need to file down parts of your mantel to ensure it fits smoothly against the wall or stonework.
Ensuring a Tight Fit
Use screws to secure the mantel to the bracket if needed. This will prevent any shifting over time, ensuring your floating mantel stays firmly in place.
Finishing Touches
Once your mantel is installed, it’s time to focus on the aesthetics. Make any adjustments to color, clean up, or anything else that needs to be done to make this look like a professional installed it – not that you’re not a professional right?
Safety Considerations
When installing a floating mantel, safety should always be top of mind.
Weight Distribution
Be sure to consider the weight of the items you plan to place on the mantel. Overloading a floating mantel can cause it to sag or even pull away from the wall.
Avoiding Common Mistakes
Ensure your bracket is level, your screws are securely fastened into studs or into masonry anchors and always double-check measurements before cutting.
Conclusion
Building a floating mantel support bracket using 2×4 materials is a straightforward project that can dramatically enhance the look of your home. By following these steps, you can create a sturdy and attractive mantel that appears to float effortlessly on your wall. Whether you’re an experienced DIY enthusiast or a beginner, this project is accessible, affordable, and rewarding.
FAQs
How much weight can a floating mantel support hold?
Typically, a properly installed floating mantel can support 50-100 pounds, but this depends on the bracket’s strength and wall support. I pulled down on my mantel with nearly half my weight, for reference, that’s on the top end of that 50-100 pound range.
Can I use other materials instead of 2×4?
Yes, you can use metal brackets or different types of wood, but 2×4 lumber is often preferred for its strength and affordability.
Do I need professional help to install a floating mantel?
If you’re comfortable with basic DIY tools, you should be able to handle the installation on your own. However, professional help can ensure a perfect fit, especially with heavier mantels.
How do I maintain my floating mantel?
Regularly dust your mantel and ensure that no excessive weight is placed on it. Repaint or restain as needed to maintain its appearance.
Can I install a floating mantel on a brick wall?
Yes, but you’ll need masonry anchors and possibly professional advice to ensure the mantel is securely fastened to the brick.
Finally…
Head on over to YouTube by clicking on the video below and see how it was made and turned out.
I hope you find this helpful video useful and can use some of the tips presented. Feel free to leave any comments, suggestions, or experiences you have had below.
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