Command Large Picture Hanging Strips hold up to 16 pounds when using four pairs; however, 3M states that the frame cannot exceed 24 by 36 inches and the wall cannot be bricked, covered with wallpaper or fabric, or textured. The company also warns not to use these hangers for valuable or irreplaceable items or for hanging artwork above a bed, which involves some chance that the pieces won’t stay in place.
If you don’t want to create holes in your walls, this risk may seem acceptable. Reduce the weight of your pieces by choosing lighter framing materials, such as hollow metal rather than thick wood or plexiglass rather than glass. The website usaoncanvas.com has a tool that asks for the dimensions and then calculates the weight of the structural components.
While it’s not essential to avoid making small holes in your walls, you have many other options, depending on the type of wall: a drywall or lath and plaster over wood studs or metal, or one made of concrete or masonry. You can never go wrong attaching artwork where nails are underneath.
The simplest picture hangers, such as conventional OOK picture hangers, simply nail down. (Pre-drill if you have lath and plaster walls.) These hangers have a hook with a bracket that presses against the wall and a design that directs the nail at an angle, so it resists pulling by gravity. They come with ratings to carry 10 to 100 pounds and start at around $1 at Home Depot for a pack of up to eight, depending on weight rating. But the ratings of these hangers and many others are measured as the nail enters a stud. Hangers will hold less in drywall alone, but how long is up to you to guess.
To locate studs covered in drywall, tap the wall to hear where a hollow sound turns into a thud or use a stud finder. Readings on lath and plaster can be misleading, so if that’s what you have, look for nails in baseboards, which should point to studs, or for electrical outlets, which usually have a stud next to them.
Once you locate one or two uprights, measure to find the others; they are usually spaced 16 or 24 inches center to center. To confirm the location of a stud, drill a small hole in the plaster just above the baseboard, where it won’t be very visible.
If the posts aren’t where you want to hang your artwork, one option is a hanger designed to lean against the drywall from the front and back. Hillman, which owns OOK, makes such a postless picture hanger that can hold up to 200 pounds ($6.48 on Amazon). The hanger has a flat washer and tab that fits through a hole in the drywall and bends upward to apply pressure to the back.
Another option is 3M’s claw drywall hanger, which comes in designs rated to hold 15, 25, or 45 pounds ($4.18 to $5.37 at Home Depot). “Claws” are teeth designed to dig into drywall with one hand pressure, no dowels required.
To hang heavy artwork between posts, install an anchor in drywall or plaster and screw the bracket of your choice to the anchor. Self-tapping metal or plastic drywall anchors have large, relatively coarse threads on the outside, allowing them to grip reasonably well, even in crumbly drywall. Since the anchors are self-tapping, you usually don’t even need to pre-drill, although a ⅛ inch diameter starter hole is useful if you’re going through thick paint or wallpaper.
Screw the anchor into the wall until the face is flush with the wall, then screw a smaller screw (included in the package) through a hook to hold your art, and tighten this screw in the center of the wall. ‘anchor. The anchor will flare out behind the drywall, locking the anchor in place. One example, the EZ Ancor Twist-N-Lock Anchor ($1.98 for four at Home Depot), can hold artwork up to 75 pounds. The EZ Ancor drywall toggle anchors ($2.98 for two at Home Depot) are also self-tapping but can hold up to 100 pounds because the outer shell is metal and the pressing part is the back of drywall is larger.
For particularly heavy loads or for fixing to lath and plaster walls, use real toggle bolts, which have a center bolt and wings that fold up to pass through a hole in the wall and swing open to press firmly against the back of the drywall or slats.
Installing toggle bolts can be frustrating though; if you don’t remove the head of the bolt so that the wings press against the back of the drywall when you tighten the bolt, the wings just spin behind the wall. The bolt head is hard to hold, so thread the bolt through a picture hook first, then remove the hook from the wall while you tighten the bolt.
For masonry, pre-drill holes and use anchors with plastic sleeves, which press against the brick or block and hold a central screw in place. Toggle bolts are another option for hollow concrete block walls; however, get bolts that are long enough to hold the fenders down until they are deep enough inside the block to open.
With any anchor or toggle bolt, you can double the capacity by installing two anchors and running the picture wire over both. EZ Ancor recommends spacing them two feet apart on drywall.
There are also attachments for special situations. Interlocking strips known as French cleats are ideal for hanging open-backed artwork without hanging hardware. You attach a piece to the wall and the mating piece to the frame, then lower the frame piece into a lip on the wall section. Metal studs, such as the OOK French Stud Picture Hanging Kit ($11.68 at Home Depot), come with coarse-thread screws that work in drywall. If you opt for wooden battens, use an appropriate type of anchor to secure the wall panel to your wall.
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