What Size Mirror Should I Choose? A Room-by-Room Guide
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Choosing a mirror is not only about finding a design you love. Its size, shape and position can completely change how it looks once it is on the wall.
A mirror that is too small can feel lost. One that is too large can overpower the furniture beneath it. You do not need complicated rules — just a tape measure, a clear idea of where the mirror will sit and enough breathing room around it.
Here is how to choose the right mirror size for each part of your home.
Check the wall, nearby furniture and the full frame size.
The mirror should feel connected to what sits beneath it.
Natural light, artwork and open views are worth reflecting.
Use fixings suitable for the mirror weight and your wall type.
Start by measuring the wall
Before looking at mirror designs, measure the width and height of the available wall, any furniture the mirror will hang above, the distance between nearby doors, shelves, lights or artwork, and the height from floor to ceiling.
Use masking tape to mark the proposed mirror size directly onto the wall. It is a simple way to judge the proportions before ordering.
How wide should a mirror be above furniture?
When hanging a mirror above a console table, sideboard, chest of drawers or fireplace, it will usually look balanced when it is slightly narrower than the furniture below.
A useful starting point is around two-thirds to three-quarters of the furniture width, but treat this as a guide rather than a strict rule.
Decorative sunburst and sculptural mirrors are slightly different because their outer frames create extra visual width. Check the full product dimensions, not only the reflective glass.
A room-by-room mirror size guide
Above a console table
Console tables are often placed in hallways, entrances and living rooms, where a mirror can add height and reflect more light.
Centre the mirror over the console, leave a visible gap above the tabletop and keep it slightly narrower than the furniture where possible. Take the height of lamps, vases and other objects into account.
Round and arched mirrors soften the straight lines of a console. Rectangular and window-style designs create a stronger shape.
Above a fireplace
The proportions of the fireplace surround or mantel matter more than the full width of the chimney breast.
Choose a mirror that sits comfortably within the mantel width and leave enough space around the frame so it does not feel squeezed between the ceiling and fireplace.
Before fixing it, check the view. Natural light, artwork or a pleasing part of the room will look far better than a blank wall or television.
Living rooms
Above a sofa or sideboard, choose a mirror that relates to the width of the furniture below. On a clear wall, a large mirror can work almost like artwork.
In a small or darker living room, place the mirror opposite or beside a window so it can carry light further into the room.
Round and oval shapes soften rooms with lots of straight furniture. Arched and rectangular mirrors add height and a firmer architectural line.
Hallways and entrances
Hallways are often narrow, so the depth of the frame matters as much as its width.
A slim wall mirror is usually more practical than a deep frame in a tight walkway. Round, oval and arched designs work well above a narrow console, while a taller mirror can make the entrance feel more open.
Avoid positions where doors could hit the mirror or people may brush against it as they pass.
Bedrooms and dressing spaces
For checking an outfit, a full-length mirror is the most practical choice. Make sure enough reflective area is visible and that you can stand far enough back to use it properly.
Above a dressing table, the mirror should relate to the table width and the height of the person using it. In smaller bedrooms, a tall wall-mounted design gives you the function of a floor mirror without taking up floor space.
Above a chest of drawers
A decorative mirror above a chest of drawers brings in light and gives the wall a clear focal point, even when it is not the main dressing mirror.
Keep the frame slightly narrower than the chest and leave enough room for anything placed on top. Where the furniture is tall, check that the mirror does not sit too close to the ceiling.
Round, arched or rectangular?
The shape changes the feel of the wall as much as the overall size.
Round mirrors
Round mirrors soften strong lines and work particularly well above consoles, fireplaces and dressing tables.
Arched mirrors
Arched mirrors draw the eye upwards and can make a wall feel taller. They work with both simpler rooms and more decorative furniture.
Rectangular mirrors
Rectangular mirrors feel structured and practical, making them useful in bedrooms, hallways and on larger walls.
Sunburst, ornate and sculptural mirrors
These designs work as wall decoration as well as mirrors. Measure the entire outer frame, not only the glass.
Window-style mirrors
A window-style mirror can give the impression of an extra opening, especially in a darker room or across a larger wall.
How high should I hang a mirror?
Eye level is a useful starting point, but the correct height depends on what is beneath the mirror and who will use it.
When hanging above furniture, look at the full arrangement rather than measuring from the floor alone. The mirror should feel connected to the piece below it, not as though it is floating high above it.
Before drilling, ask someone to hold the mirror in position or mark the outline with masking tape. Step back and view it from different parts of the room.
Check the weight and fixing requirements
Large mirrors can be extremely heavy. Always check the product weight and use fixings suitable for your wall type.
Plasterboard, masonry and solid walls may require different fittings. When you are unsure, ask a qualified installer or experienced professional to fit it safely.
The final check before ordering
Before choosing your mirror, ask yourself:
- Does the full size fit the available wall?
- Is there enough room around the frame?
- Is it in proportion with the furniture below?
- Will doors, lights or furniture interfere?
- What will the mirror reflect?
- Are the wall and fixings suitable for its weight?
Once those practical points are covered, choose the mirror that you genuinely love looking at. It does not need to match every other item in the room — it simply needs to make sense in the space.
Mirror size FAQs
Should a mirror be wider than a console table?
Usually, no. A mirror tends to look more balanced when it is slightly narrower than the console beneath it. Around two-thirds to three-quarters of the console width is a useful starting point.
What size mirror works above a 120 cm console?
A mirror around 80–90 cm wide will often work well above a 120 cm console. Always mark the size on the wall first and include the full outer frame in your measurements.
Can a mirror be too big for a wall?
Yes. A mirror may feel too large when the frame is crowded by the ceiling, nearby doors, lighting or furniture. Leave a clear margin around it and make sure it does not overpower what sits below.
Where should I place a mirror to make a room look brighter?
Place it opposite or beside a window so it catches natural light. Check the reflection from several angles before fixing it permanently.
Find the mirror that fits
Shop round, arched, gold, ornate, rattan, sunburst and window-style wall mirrors.
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