How to Hang a Heavy Mirror

Make sure to check the back of your mirror to see what hardware is already attached to the piece. If it looks old or worn, consider exchanging it for something that is better suited to your installation, and likely safer. You may even want to exchange new hardware for something that suits you and your project better. Most new hardware will list weight maximums on the packaging.

If a stud is available for installation, your job will be streamlined. Buy a hook that is rated for the mirror’s weight. Be sure to use a sturdy anchor. If a stud doesn’t work into your plan, determine what type of anchor to use. 

• Drywall Anchor. Generally plastic, these are the anchors often included with new frames, mirrors and other hanging products. While they definitely do the trick, their flexible housing can be hard to work with.
• Toggle Bolts. Also known as toggle anchors and toggle drywall anchors, these anchors have zinc-plated bolts that are sturdier than their plastic counterparts. They come with a companion screw.
• Heavy-Duty Self-Drilling Anchors. These anchors are screwed directly into the wall and don’t require a pilot hole. Their structure allows them to stay intact so they’re less likely to open up prematurely as plastic anchors are known to do.

The type of hardware you use will also depend on whether you’re hanging your mirror with a wire, a D-ring or a french cleat. Different mirrors may require different hanging methods and measurement options. Most heavy mirrors even require a friend or partner to help. Choose what works best for you and your specific mirror. 

Below are the most common methods for hanging a heavy mirror.

D-rings offer some of the best security for heavy items. Once the D-rings have connected with their wall hooks, your heavy mirror will sit snug to the wall. Many manufacturers include D-rings on the back of their frames. 

It's important to make sure the rings are equidistant from the top edge. Measure down from the top edge of the frame to each D-ring to see if the distances match. Match your wall marks to reflect any varying dimensions. Remember, these marks will not be level if the D-rings are not equidistant from the frame’s top edge. 

• After determining where you want to hang your mirror, mark the center point with a pencil.
• Measure up 57 inches from the floor. Add half the height of the mirror. This will determine the top edge of the mirror. Mark with a pencil.
• If the placement of the D-rings on your mirror are identical, measure the distance from the top edge of the frame down to the highest point of the D-ring on one side. Use that number to measure down from the center line. Mark with a pencil or masking tape.

To determine the distance between the D-rings, create a pattern using your level. With the mirror face down on a flat surface, set your level against the top of each ring. Mark the distance directly onto the level or use masking tape. 

Place your level on the wall, aligning the center point. Transfer the marks from the level to the wall for the final position of the screws. If you are not securing hardware into studs, drill pilot holes. Install anchors that are appropriate for your wall type and the weight of the frame. Install the screws into the anchors or hangers into the wall.

Hang the mirror and level it. Make sure to ask someone to help you. The weight of the mirror can make it difficult to properly align D-rings and their hooks alone.

Frameless mirrors are most often found in bathrooms. If no hardware is attached to the back of the mirror:

• Apply construction adhesive to both the wall and the back of the mirror.
• Lift and set the mirror in place with the help of a friend.
• Use a clean foam paint roller to evenly apply pressure across the mirror.
• Press the mirror to the wall.
• Let the glue set by taping the corners of the mirror to the wall with masking tape.
• Make sure to follow manufacturer instructions about maximum wieght and drying time.

Tip: Some frameless mirrors come with D-rings attached to the back with a strong adhesive. If so, use the instructions above for mounting with D-rings.

Picture wire is a popular option. But if you plan to use wire with a heavy mirror or other wall art, be sure you choose the right guage. The guage will be listed on the package and must be strong enough to handle the weight. If there are D-rings on the back of the mirror, make sure to twist the wire securely through them. 

To hang a heavy mirror with wire, plan to set two hangers into the wall to distribute the weight.

• After determining the mirror’s placement, mark the center point with a pencil.
• Measure up 57 inches from the floor and then add half the height of the mirror. Mark the measurement. This is the top edge of the mirror.
• Have a friend hold the mirror up by the wire distributing the weight. Measure the distance from the top edge of the frame to the wire. Also measure the distance between the two hands.
• Transfer the measurements to the wall by measuring down from the top-edge reference mark. For example: If the wire is taut 8 inches down from the top of the frame and the distance between the hands is 12 inches, mark 8 inches down from the top center mark and 6 inches out to the left and the right.
• Level the two hand marks and place an “X” at each to mark the screw placement.
• If you are not securing hardware into studs, drill pilot holes. Install anchors that are appropriate for your wall type and the weight of the frame.
• Install the screws into the anchors or hangers into the wall.
• With help from a buddy, hang the mirror. Level.
• Be aware that wire can stretch over time, so plan on checking the integrity periodically.

Tip: 57 inches from the floor is considered the ideal mid-point of any wall hanging. 

The French Cleat is one of the best solutions for hanging large or heavy wall pieces. This two-piece combination comes in a variety of sizes capable of handling frames that weigh anywhere from 50 to 400 pounds. 

• Use the correct cleat for your mirror’s weight and install the top plate to the back of your frame. Use the included screws and follow the manufacturer instructions.
• Be sure the cleat is centered and level. The lip of the cleat will face down, toward the bottom of the frame.
• Determine where you want to hang your mirror. Marking the center point with a pencil.
• Measure from the top of the mirror frame to the bottom of the attached cleat. Use this measurement to measure down from the center point on the wall and mark.
• Using a level, draw a horizontal guideline approximately 6 inches along this point.
• Align the top edge of the wall cleat with the line. The lip of the cleat should face the ceiling. Mark the holes.
• Drill pilot holes. Where studs aren’t available, install anchors.
• Hold the cleat in place and secure with its screws.
• Slide the mirror frame down the wall until the cleats lock together.