Wall anchors are commonly used when hanging objects to a wall. Whether it’s a shelf, framed picture, coat hanger or mirror, it must be properly secured to the wall. If there’s a stud behind the wall, you can typically use a fastener to secure the object. Without a solid backing like a stud, however, you may need to use a wall anchor.
Wall anchors work by providing a strong mounting point for fasteners. Some of them are designed to expand when the fastener is installed, whereas others have tabs or “wings” that grip the inner walls. Here’s how to choose the right wall anchor for your next hanging project.
Consider the Weight
You should consider the weight of the object when choosing a wall anchor. A small framed picture may weigh just 1 or 2 pounds, whereas a large decorative mirror may weigh over 50 pounds. Heavier objects, of course, require stronger mounting points. If the wall anchor is too weak, it won’t be able to hold the heavy object in place.
Consider the Wall Material
Not all walls are made of the same material. Some walls are made of drywall, whereas others are made of plaster or brick. Drywall is the most common wall material used in homes and residential buildings. It’s inexpensive but relatively weak and brittle. Plaster is harder than drywall but susceptible to cracking. Brick is the strongest material but is more difficult to penetrate.
Choose the Right Style
Wall anchors are available in different styles, the most common of which is plastic expansion. As the name suggests, plastic expansion anchors are made of plastic. They work by expanding in the wall cavity. You can install them by drilling a hole, followed by gently hammering the plastic expansion anchor into the hole. Once in place, you can then drive a screw into the plastic expansion anchor.
Another common type of wall anchor is the toggle bolt. Toggle bolt anchors are stronger and can handle heavier objects. They feature a long bolt and two wings. Both the bolt and wings are inserted into a predrilled hole. The wings are designed to pop open and expand, thereby distributing the weight of the object behind the wall.
Make Sure It Fits
One of the most important things to consider when choosing a wall anchor is the size. The size of a wall anchor will determine the size of the screw with which it can be used. Small plastic expansion anchors may support #4 to #6 screws, whereas larger plastic expansion anchors may support #10 to #16 screws.
Toggle bolt anchors come with their own bolt. Nonetheless, the size of this bolt varies. If you’re planning to use a toggle bolt anchor, you should choose a size that’s appropriate for the object.