Hanging a heavy picture straight on the first try

Quick answer: Weigh the picture, hang it from two points instead of one, and screw into a stud wherever you can. Where you can't, use a toggle anchor rated for well over the weight. Mark with painter's tape, not your eyeballs.

What the box says

"Mark location. Tap nail. Hang picture. Enjoy!"

The exclamation point is doing a lot of heavy lifting for a sentence that's about to put four holes in your living room.

What you will actually need

• A bathroom scale. Yes, really.
• A stud finder, plus a strong magnet as a backup
• A 24-inch level. The little one on your keychain lies.
• Painter's tape, about two feet of it
• A pencil, which will vanish the moment you set it down
• A tape measure
• A drill and bits
• Two picture hooks rated for the weight, or two wood screws for studs, or two toggle anchors for hollow drywall
• A step ladder, not the arm of the couch
• Felt or rubber bumpers for the bottom corners
• Spackle and a putty knife, because optimism isn't a strategy

The thing everybody forgets is the right anchor. You'll have a coffee can of mystery plastic ones from 2014, and none of them belong anywhere near a forty-pound mirror. If you need the basics on hand first, start with the ten tools that cover ninety percent of household repairs.

The steps

1. Weigh it. Stand on the bathroom scale. Then stand on it again holding the picture. Subtract. Now you know if you've got a print on your hands or a small refrigerator.

My wife suggested this. I said I could tell by lifting it. I guessed fifteen pounds. It was thirty-one.

1. Check the back. Look at the wire or D-rings. If the wire's rusty, kinked or held on with something that looks like a twist tie, replace it with braided picture wire rated for at least the weight. Thrift store and hand-me-down frames are the usual offenders.

1. Pick the height. The common rule is the center of the picture 57 to 60 inches off the floor. Over a sofa, keep the bottom edge about 8 to 10 inches above the back cushions so nobody's head lands on it.

You'll want to go higher. Everybody wants to go higher. Resist. Pictures hung too high look like they're trying to escape.

1. Find the studs. Run the stud finder across the wall and mark both edges, then aim for the middle. Studs usually sit 16 inches apart, sometimes 24. Slide a magnet along the wall to find the drywall screws as a second opinion.

Before you drill anywhere, look for outlets and switches nearby. Wiring usually runs straight up or down from those boxes. Don't drill directly above or below one. If your stud finder has an AC wire mode, use it.

1. Make a tape template. Stretch painter's tape across the back of the frame. If it hangs from a wire, pull the wire up taut at two points about a third of the way in from each side and mark both spots on the tape. With D-rings, mark the top of each ring. Now measure from those marks to the top edge of the frame so you know how far the frame sits above the hooks.

This is the whole secret. Two hooks means the picture can't swing like a porch sign every time somebody closes a door.

1. Move the tape to the wall. Peel the tape off the frame and stick it on the wall at your height. Put the level on the tape and adjust until the bubble sits dead center. Your marks are now exactly where the hooks go, and exactly level with each other.

Every instinct you have will tell you to "just eyeball it." Your instincts have hung pictures before. Look at how those turned out.

1. Get on the ladder safely. Set the step ladder on a flat floor, fully open with the spreaders locked. Don't stand on the top step or the top cap. If you have to reach sideways, get down and move the ladder.

1. Install the hardware. Into a stud: drill a pilot hole slightly smaller than the screw and drive the screw in, leaving enough head out to catch the wire. Into hollow drywall: use a toggle anchor and drill the hole size printed on the package. It'll be bigger than you expect. That's normal. Skip ribbed plastic expansion anchors for anything heavy.

If the hole's too small, you'll wrestle the toggle for ten minutes. If it's too big, you'll be at the hardware store buying a bigger toggle. Read the package once, before you drill.

If the drill hits something that sparks, smells hot or makes the lights flicker, stop. Turn off the breaker for that room and call a licensed electrician. If water appears, shut off the main water valve and call a plumber.

1. Peel the tape, hang it, level it. Lift the picture onto both hooks, check it with the level on top, then stick bumpers on the two bottom corners. They keep it from shifting and protect the wall.

Step back. Admire it. Wait for someone to tell you it's crooked. Nobody will. That's the first time that's ever happened.

Where it goes wrong

The screw just spins. You caught the edge of the stud or missed it entirely. Back it out, then probe with a thin finish nail in a spot the frame will cover until you hit solid wood. Or switch that side to a toggle anchor.

It tilts a day later. It's hanging from one hook and the wire slid. Add a second hook using the tape method, or at least put bumpers on the bottom corners. A single hook on a heavy frame is a slow-motion seesaw.

You put a hole in the wrong spot. Everyone does. Fill it with spackle, let it dry, sand it flush and touch up the paint. Matching sheen matters more than matching color, which the paint job that still looks right in three years covers properly. If the hole will sit behind the frame, leave it. Nobody's checking.

Plaster cracks. Old plaster walls don't like hammers. Put a piece of tape over the spot, drill slowly instead of nailing, and go into the studs or lath with screws. Toggles work behind plaster too, but the hole needs care.

For mirrors, shelves and anything well past the weight of a big frame, a French cleat is the grown-up answer. The full rundown is in how to hang heavy things so they never come down.

When to call a pro

• A large glass mirror or anything over roughly a hundred pounds, especially above a bed, a crib or a spot where kids sit
• Hanging over a fireplace, where brick or stone needs masonry anchors and heat can be a factor
• Tile, glass block or concrete you've never drilled before
• Crumbling plaster that won't hold a screw
• Any time you've hit a wire or a pipe

Hanging a picture doesn't usually need a permit. But if the job turns into moving an outlet or running new wiring behind that frame, that's electrical work, and codes vary by area. Call a licensed electrician.

Then go put the drill away. Before somebody mentions the hallway.