Mirrors are typically placed above a dresser to fill the space and add to the decor as well as to provide a convenient place to assess your wardrobe choice as you're getting dressed. Many dressers have matching or coordinating mirrors that come with them or that can be purchased separately. You can purchase a mirror to complement the dresser and your bedroom decor. Either way, attach the mirror to the dresser so it's secure and won't slide behind the dresser or topple over and break.
Position the mirror supports on the back side of the mirror while it's lying face down. Space the supports evenly so they are a few inches from the outer edge of the mirror on both sides. This will balance the weight of the mirror.
Secure the mirror supports to the back side of the mirror with one screw at the top of each support. Attach a bracket to the bottom of the mirror over the support on each side.
Measure the distance between the support brackets. Mark the back of your dresser using that distance so you know where they will attach to the dresser. The measurement must be exact.
Install a bracket on each side of the dresser at the top of the dresser and another bracket a few inches down where the "blind rail" is located. The blind rail is the solid piece of wood inside the dresser that provides reinforcement. Secure the lower brackets to that solid piece.
Loosen the fixed screws that are in the mirror supports. Slide the supports through the brackets on the dresser so the mirror is in place.
Adjust the mirror to the height and place you want it, and tighten the screws. The mirror should be balanced and secure. Push the dresser back against the wall.
Enlist the help of another adult who can help lift and steady the mirror. Knock or gently push on the back panel of the dresser to feel where the reinforced blind rail is. If that doesn't help, remove the drawers from the front to see it, and guide a helper or partner to the proper spot.
Sloppy measurements or mismatched placement of brackets and screws can cause numerous holes in your dresser or an unstable and potentially dangerous mirror set-up.