You’d think hanging a picture would be one of the simplest DIY jobs going. And yet, somehow, it’s the one that creates the most arguments. “Does that look straight to you?” “Move it left a bit. No, too far. Back right. Actually it was fine before.”
A laser level eliminates all of that. No more holding a spirit level with one hand while marking with the other, no more guessing whether two frames across the room are at the same height, and no more stepping back and realising the whole row is 10mm off.
This guide shows you exactly how to use a laser level for hanging pictures — from a single frame to a full gallery wall — with techniques that get professional results every time.
Why a Laser Level Beats a Spirit Level for This Job
A spirit level works. I’m not saying it doesn’t. But it has some fundamental limitations when it comes to picture hanging:
- You need a third hand. Holding the level, marking the wall, and keeping track of measurements simultaneously is a juggling act. A laser level projects a line hands-free.
- Spirit levels only work at the point of contact. A 60cm spirit level tells you that 60cm of wall is level. But what about the picture 2 metres to the right? You’re measuring, marking, and hoping. A laser line runs across the entire wall.
- Accuracy over distance. A good laser level is accurate to ±1mm at 10 metres. A spirit level’s accuracy depends entirely on your eyesight and the quality of the vial. Over a long wall, errors accumulate.
For hanging a single picture, either tool works fine. For anything more — a row of pictures, a gallery wall, shelves with art — a laser level saves time, frustration, and filled-in holes from wrong guesses.
What Type of Laser Level Do You Need?
You don’t need anything expensive for picture hanging. The key features are:
- A horizontal line. This is the essential feature. Every laser level has this.
- Self-levelling. The laser automatically adjusts within a few degrees so the line is truly level. Without this, you’re no better off than a spirit level.
- A way to mount or position it. Ideally something with a tripod thread, a magnetic bracket, or even a suction mount so you can set it at the right height hands-free.
A compact cross-line laser level — the type that projects both horizontal and vertical lines — is perfect. These cost as little as £25-40 for a perfectly adequate model, and £60-100 for something with better visibility and range.
Don’t bother with: Rotary lasers (they’re for building sites), long-range outdoor models (overkill), or anything that needs manual levelling (defeats the purpose).
Hanging a Single Picture Straight
Let’s start with the simplest scenario — one picture, one wall.
- Decide where you want the centre of the picture. A good rule of thumb is to position the centre of the picture at eye height — roughly 145-150cm from the floor. In a room where people are mostly seated (dining room, living room), drop that to about 120-130cm.
- Work out where the fixing needs to go. Measure from the top of the frame to the hanging wire or hook when it’s taut (pull it up to simulate the weight of the picture). This measurement tells you how far below the top of the picture the fixing point is.
- Mark the fixing point on the wall. Measure up from the floor to your desired centre point, then adjust up by half the picture height, then down by the wire/hook measurement. Mark it with a light pencil cross.
- Set up the laser level. Position it so the horizontal line passes through your marked fixing point. If you’re hanging the picture on a wire (two-point hanging), the laser line shows you exactly where both fixings need to go — they’ll be perfectly level by definition.
- Drill, plug, screw, hang. With the fixing points marked on a guaranteed level line, you can drill with confidence.
For wire-hung pictures: Place both fixings on the laser line, spaced roughly one-third of the frame width in from each edge. This keeps the picture stable and prevents it from tilting.
Hanging a Row of Pictures at the Same Height
This is where a laser level truly earns its keep. Whether it’s three matching prints along a hallway or five frames above a sofa, getting them at exactly the same height is crucial — your eye will spot even a 5mm difference.
- Decide on the alignment point. You have two choices: align the tops of the frames (works best with different-sized pictures) or align the centres (works best with same-sized pictures).
- Set the laser at the right height. For top-alignment, set the laser at the desired top-of-frame height and work downward to find each fixing point. For centre-alignment, set it at centre height.
- Space them evenly. Measure the total wall space available, subtract the combined width of all frames, and divide the remainder by the number of gaps (frames + 1 for gaps at each end, or frames – 1 for gaps between only). Mark each position along the laser line.
- Find each fixing point individually. Because different frames may have different wire positions or hook styles, measure the fixing point for each frame separately. Mark each one on the laser line.
- Hang them all, then step back. With the laser still running, you can verify each frame is sitting correctly before you commit to being finished.
Spacing formula for a row above furniture: The total arrangement should be roughly two-thirds the width of the furniture below it (sofa, sideboard, bed). Centre the arrangement over the furniture, not the wall — this looks much more intentional.
Creating a Gallery Wall Layout
Gallery walls look incredible when done well and chaotic when done badly. The difference is planning. A laser level is essential here because you’re dealing with multiple frames at different heights and positions that all need to relate to each other.
Planning the Layout on the Floor First
Before you touch the wall:
- Lay all frames on the floor and arrange them until you’re happy with the layout. Take a photo from above so you don’t forget the arrangement.
- Cut paper templates. Trace each frame onto newspaper or wrapping paper, cut them out, and write the frame name/number on each piece. This is the single best gallery wall trick — you can tape the templates to the wall, rearrange them without making holes, and only drill once you’re certain.
- Transfer to the wall. Tape the paper templates in position using painter’s tape (easy to remove, won’t mark the wall).
Using the Laser Grid
With your paper templates on the wall:
- Set the laser to project a horizontal line through the centre row of your arrangement. This is your anchor line — the visual centre of gravity.
- Mark fixing points through the paper templates. For each frame, measure where the fixing needs to go (wire/hook distance from the top) and mark it through the paper template onto the wall.
- Use the vertical laser line to check that frames in the same column are properly aligned vertically.
- Remove the templates, drill, and hang. Work from the centre outward — hang the central picture(s) first, then work out in each direction. This lets you make minor adjustments as you go.
Gallery wall spacing: Keep 5-8cm (2-3 inches) between frames. Too close and it looks cramped; too far and the arrangement falls apart. Consistent spacing matters more than the exact measurement.
Tips for Different Wall Types
The laser level handles the “where” beautifully. But you still need to get the fixings right for your wall type.
Plasterboard/Drywall
The most common wall type in modern UK homes. For light pictures (under 3-4kg), a simple picture hook and pin is fine. For heavier frames, you need plasterboard anchors — the self-drilling type that spread behind the board and hold 15-20kg per fixing.
If you can hit a timber stud behind the plasterboard, even better. Studs are typically 400mm or 600mm apart. A stud finder or a strong magnet (it’ll stick to the drywall screws in the studs) helps locate them.
Brick
Solid brick walls need drilling and wall plugs. Use a 6mm masonry drill bit, insert a wall plug, and drive in a screw leaving 5-8mm proud for the picture wire or bracket to hook over. For heavy frames, a 7mm or 8mm plug and screw gives more security.
Stone
If you’re hanging pictures in an older property with stone walls (like many Victorian and older UK homes), the process is similar to brick but can be harder. Stone varies hugely — soft sandstone drills easily, granite or flint will eat drill bits for breakfast. Use a good SDS drill on hammer mode and be patient.
In stone walls, you’ll sometimes drill into mortar joints rather than the stone itself. This can be easier but the mortar is weaker, so use a larger plug and don’t hang anything extremely heavy from mortar alone.
The Cheap Laser Level That Does This Job Perfectly
You don’t need a £200 contractor’s laser level for hanging pictures. Here’s what to look for and what you can skip:
Must have:
- Self-levelling cross-line (horizontal + vertical)
- Indoor range of at least 10 metres (covers any room)
- Some form of mounting — tripod thread, clip, or magnetic bracket
Nice to have:
- Battery-powered (not rechargeable) — always ready when you need it, even if it’s been in the drawer for months
- A carrying pouch to keep it in the tool drawer
- Pulse mode for use with a detector (only needed outdoors — irrelevant for pictures)
At the budget end, brands like Huepar, CIGMAN, and even own-brand levels from Screwfix and Toolstation do the job well. At the mid-range, Bosch Quigo and DeWalt’s compact levels are solid. You’re paying for better line visibility, longer battery life, and sturdier construction — but for hanging pictures, the cheap one works just as well.
Gallery Wall Layouts That Look Professional
A laser level for hanging pictures is one of those tools that feels like overkill until you use one. Then you wonder how you ever managed without it. For the cost of a few pints, you get a tool that makes every picture, shelf, and piece of wall art dead straight — first time, every time.
