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Wall Lights: How High to Mount Them, and Why the Job Comes First

Archlior
Wall Lights: How High to Mount Them, and Why the Job Comes First

Wall Lights: How High to Mount Them, and Why the Job Comes First

"How high should wall lights be?" is usually the first question asked about wall lights, and it usually gets a single number in reply. Published rules of thumb mostly fall somewhere between about 1.5 and 1.8 metres above the floor.

That range is a reasonable place to start. But height is the second question. The first is what the light is for.

A wall light beside a mirror is there to light a face. One in a hallway is there to lead people along it. One beside a bed is for reading, one in a living room may exist mainly to make the wall glow, and one above a painting is there for the painting. Those are different jobs, and they call for different heights, different directions and different amounts of light. Decide the job, and the height mostly decides itself.

What Wall Lights Do That Ceiling Lights Cannot

Many homes are lit mainly from the ceiling, and ceiling lights are good at lighting floors, tabletops and the tops of heads. Wall lights light the vertical: the walls themselves, and the faces of the people in the room.

That distinction is taken seriously in professional lighting. The European standard for workplace lighting, EN 12464-1, sets separate requirements for light on vertical surfaces and on faces, measured as cylindrical illuminance, because light on a desk does not guarantee light on the people sitting at it. For good visual communication, its 2021 edition calls for vertical and cylindrical illuminance of between 50 and 150 lux, depending on the activity. It is a workplace standard, not a rule for homes, but the principle carries over: faces are lit mainly by light arriving from the side, not from directly overhead.

Walls matter too. One of the best-known early studies of how lighting shapes impressions of a room, by John Flynn in the 1970s, suggested that bright, uniform lighting with some emphasis on the walls can influence impressions of visual clarity. A lit wall makes the edge of a room legible. A dark one lets it disappear.

Decide the Job First

Almost every wall light is doing one of six jobs.

Lighting faces. Beside a mirror, at a dressing table, in a bathroom. The light needs to be at about face height and, ideally, on both sides, so it fills in shadows rather than casting them.

Lighting the wall. In a living room, dining room or bedroom, where the point is a soft wash or glow that lifts the room. The fitting usually throws light up, down or both, with the lamp itself shielded.

Reading. Beside a bed or a favourite chair. The light has to reach the page, be switched from where you sit, and stay out of your eyes and your partner's.

Wayfinding. In hallways, corridors and on stairs. The job is even, glare-free light along a route, ideally switchable from each end.

Decoration. Some wall lights are chosen mostly as objects. That is fine, as long as the object is placed and shaded so it does not also become the room's main source of glare.

Lighting pictures. Picture lights have their own rules for angle and distance, covered in our guide to lighting artwork at home.

Then the Height

The 1.5 to 1.8 metre range makes sense because it puts the light at roughly the height of an adult's face and above most furniture. It does not, on its own, prevent glare. A fitting at that height sits close to standing eye level, so how well its lamp is shielded matters as much as how high it is.

Three things refine the starting range.

The shade matters as much as the height. A fitting whose lamp is fully shielded can sit at or below eye level without causing glare. One with an exposed lamp generally needs to go higher, or be swapped for a shaded design.

Measure to one reference point. Published guides disagree about what they measure to. Some give the top of the fitting, some its centre, some the connection box behind it. Choose one reference point for the whole project and use it in every room, or lights that should line up across a room, or through a doorway, will not. Remember that the electrician fixes the box, not the fitting. On many swing-arm and picture lights the backplate is not centred on the body of the fitting, so work out the box position from the manufacturer's drawing.

Line up with the architecture. A wall light reads as deliberate when it relates to something: the top of a door frame, the top of a mirror, a picture rail, the pitch of a stair. In a low room, keeping fittings lower and throwing light upward gives the light room to spread across the ceiling; see our guide to low ceilings. Tall rooms raise different questions, covered in our guide to double-height spaces.

Living rooms

Wall lights here are usually lighting the wall, often in pairs flanking a fireplace, a mirror or a painting. Start in the rule-of-thumb range, and make sure a fitting above a sofa sits high enough that nobody sitting below it has the lamp beside their ear.

Hallways and corridors

This is wayfinding, so consistency matters more than any one height. Keep every fitting at the same height, space them evenly, and choose shallow fittings in narrow corridors, where anything deep gets knocked. Our guide to hallway and corridor lighting goes further.

Stairs

Follow the stair. Wall lights on a staircase read best at a consistent height above the line of the treads, so they rise with the stair rather than sitting at one fixed height from the bottom. Low-level lights beside the treads are the other option; see our staircase lighting guide.

Bedrooms

Bedside wall lights are for reading, so they are positioned for someone sitting up in bed rather than standing. Published guides commonly suggest about shoulder height when sitting up, which also keeps the switch within easy reach. A directional or well-shaded fitting keeps light on the page rather than on the person next to you. Fix the position of the bed first, and the lights second. Our guide to bedroom lighting covers the rest of the room.

Bathrooms and mirrors

Here the job is lighting a face. A pair of lights either side of the mirror, with their centres at about eye level, lights the face evenly from both sides and avoids the shadows under the eyes and chin that a single light above the mirror tends to cast. Bathrooms also have electrical zones that restrict which fittings can go where; see our bathroom lighting guide.

Spacing and Symmetry

There is no universal spacing for wall lights, because it depends on each fitting's light pattern. In a corridor, space fittings evenly so their pools of light meet or nearly meet on the wall, or leave deliberate gaps if you want a rhythm of light and shade. Check the pattern against the manufacturer's photometric data, or try the actual fitting on the wall, before committing.

Pairs are where symmetry earns its keep: either side of a bed, a mirror, a fireplace or a painting. Centre the pair on the thing it flanks, not on the wall. A pair centred on a wall with the bed slightly off-centre looks wrong forever. That is why furniture positions should be fixed before wall lights are.

Glare, Direction and the Shade

The most common wall-light mistake is an exposed bright lamp at eye level. Because wall lights sit at the height people look, a poorly shielded one is seen every time someone walks past.

Direction is the other big decision:

  • Uplighting lifts the ceiling and gives soft, indirect light.
  • Downlighting grounds the fitting and lights the floor and skirting.
  • Up and down often throws two defined scallops of light on the wall. That can look sculptural, but it grazes the surface, so it flatters good plaster, stone and brick and exaggerates every lump in a poor finish.
  • Diffused or opal fittings glow in all directions. They are gentlest when the diffuser is large and not too bright.
  • Directional or adjustable fittings are for reading.

Keep the colour temperature consistent with the rest of the room, as our guide to colour temperature explains, and make sure fittings and dimmers are compatible, since wall lights are often dimmed low in the evening.

Wiring: Plan It Before the Plaster

Wall lights are one of the few lighting decisions that are genuinely hard to change later. The cable runs inside the wall, so moving a wall light usually means chasing, replastering and redecorating.

In the UK, BS 7671 restricts where cables can be hidden in walls. Unless they are buried at least 50 mm deep or specially protected, concealed cables must run in set zones: within 150 mm of the top of the wall or of a corner, or straight up, down or across from the point, accessory or switch they serve. That is why the cable to a wall light usually runs straight up to the ceiling or straight across, and why it is unwise to drill directly above, below or beside one. Cables in these zones also need additional protection by a 30 mA RCD, and in homes, circuits supplying lighting need that protection anyway. All of it is work for a qualified electrician.

A few practical points follow.

Mark every position on elevations before plastering. Agree the reference height with the electrician at first fix, and relate each position to the furniture plan.

Check the wall for heavy fittings. A solid masonry wall usually takes fixings well, although older or soft masonry may need specialist fixings. A stud partition may need a timber noggin or a suitable fixing behind the plasterboard.

Consider plug-in wall lights where chasing is not possible. They run on a flex to a socket, so they suit rented homes and finished rooms. Keep the flex on the surface, ideally in a neat cable cover, rather than buried in plaster.

Take extra care in listed buildings. Chases and fixings are alterations to historic fabric. Our guide to lighting a listed building explains why surface-mounted, reversible solutions are usually the route to consent.

Checklist

Job and position

  • Job defined for each wall light: faces, wall, reading, wayfinding, decoration or pictures
  • Height chosen for the job, starting from the 1.5 to 1.8 m range and adjusted
  • One reference point used for every height on the project
  • Box positions worked out from the manufacturer's drawing where the backplate is off-centre
  • Positions aligned with doors, mirrors, pictures and the stair pitch

Glare and light

  • Bright part of each fitting shielded or kept out of the line of sight
  • Direction chosen for the job: up, down, up and down, diffused or directional
  • Up-and-down fittings checked against the quality of the wall finish
  • Colour temperature consistent with the room, and dimming compatibility checked

Spacing and symmetry

  • Pairs centred on what they flank, not on the wall
  • Corridor spacing checked against the fitting's actual light pattern
  • Positions fixed after the furniture plan

Wiring

  • Positions marked on elevations before plastering
  • Cable routes within the permitted zones, installed by a qualified electrician
  • Bedside and corridor lights switchable from where people are
  • Wall construction checked for heavier fittings
  • Plug-in fittings considered where chasing is not possible

Five Mistakes

  1. Choosing a height before choosing a job. A face, a wall, a book and a corridor each call for something different.
  2. An exposed lamp at eye level. Wall lights sit where people look, so a bright, unshielded source is seen every time someone passes.
  3. Symmetry that ignores the furniture. A pair centred on the wall, with the bed or mirror slightly off-centre, looks wrong forever.
  4. Measuring to different points in different rooms. Lights that should line up across a room or through a doorway end up at different heights.
  5. Deciding after the plaster. Moving a wall light later usually means chasing, replastering and redecorating.

Frequently Asked Questions

How high should wall lights be? Published rules of thumb mostly fall between about 1.5 and 1.8 metres from the floor, which puts the light around face height and above most furniture. Because that is close to standing eye level, the shade matters as much as the height: a shielded lamp at that height is comfortable, an exposed one is glare. Treat the range as a starting point and adjust it to the job. Bedside reading lights go lower, lights either side of a mirror sit at about eye level, and a fitting with an exposed lamp may need to go higher. Whatever you choose, measure every height to the same reference point.

How high should bedside wall lights be? They are positioned for someone sitting up in bed, so published guides commonly suggest about shoulder height when sitting up. That puts the light near the page and the switch within reach. A directional or well-shaded fitting keeps the light off the person next to you. Fix the bed's position before the lights, since the lights only work in relation to it.

How high should lights either side of a mirror be? At about eye level, measured to the centre of the fittings. A pair either side lights the face evenly from both sides and avoids the shadows under the eyes and chin that a single light above the mirror tends to cast. In bathrooms, electrical zones also restrict which fittings can be used where, so check the fitting's suitability for its zone.

How far apart should wall lights be? There is no universal distance, because it depends on each fitting's light pattern. In corridors, space them evenly so their pools of light meet or nearly meet on the wall, or leave deliberate gaps for a rhythm of light and shade. For pairs, the spacing is set by what they flank: centre them on the bed, mirror, fireplace or painting rather than on the wall.

Should wall lights point up or down? It depends on the job. Uplighting lifts the ceiling and gives soft, indirect light, which suits living rooms and low ceilings. Downlighting grounds the fitting and lights the floor. Up-and-down fittings often throw defined scallops of light that graze the wall, which looks good on fine plaster, stone and brick but exaggerates flaws in a poor finish. Diffused fittings glow gently in all directions.

Can I install wall lights without chasing the walls? Yes. Plug-in wall lights run on a flex to an existing socket and need no chasing, which makes them useful in rented homes and finished rooms. Keep the flex on the surface, ideally in a neat cable cover. Surface-mounted conduit or trunking is another option. Any new fixed wiring, even on the surface, should be installed by a qualified electrician.

Do wall lights make a room look bigger? They can help. Lit walls make the boundaries of a room legible, and research on how people judge the size of a room has linked lit and lighter walls with a greater sense of space. Our guide to small apartment lighting looks at that research in more detail, including where it disagrees with itself.

Notice

This article is published by Archlior for general information and educational purposes. It is written for architects, interior designers and homeowners as an introduction to positioning wall lights.

It is not professional lighting design advice, electrical advice, or a statement of regulatory compliance for any project.

Mounting heights given here are published rules of thumb from industry guidance, not requirements of any standard, and should be adjusted to the room, the fitting and the people using it. EN 12464-1 is a workplace lighting standard and is referred to as a principle, not as a requirement for homes. Regulatory references, including BS 7671, reflect published guidance at the time of writing, apply in the UK, and are subject to change.

All electrical work must be carried out by a suitably qualified electrician working to the regulations in force locally, and properly inspected, tested and certified. In listed buildings, consent may be required before any fixing or chasing.

Archlior accepts no liability for any loss, cost or damage arising from reliance on the information in this article. Readers act on it at their own discretion.

Last reviewed: October 2026.

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