What Size Art Should You Hang Above a Fireplace?

Most art above a fireplace is too small. It floats apologetically in the middle of the wall, dwarfed by the mantel below and the ceiling above, and the whole room reads as unfinished. The fix is rarely about taste. It's about measurement.

This guide gives you a clear sizing framework, then handles the edge cases: tall ceilings, mantel-free fireplaces, wide linear builds, and what to do when you want a pair or a triptych instead of a single piece.

The core rule: 2/3 to 3/4 of the mantel width

Your art should measure between two-thirds and three-quarters of the width of your mantel. That's the proportion professional stylists work to, and it's the single most useful number to remember.

A 150cm mantel wants art between 100cm and 112cm wide. A 120cm mantel wants 80cm to 90cm. A narrow 90cm mantel wants 60cm to 67cm. Going narrower than two-thirds makes the piece look stranded. Going wider than the mantel itself almost always looks wrong, with one exception we'll cover later.

The reason this works is visual weight. Your mantel is a horizontal anchor. The art needs to feel connected to that anchor without competing with it, which means sitting comfortably inside its footprint while still commanding the wall above.

Which width do you actually measure?

This trips people up. Fireplaces have three potential widths: the opening (the firebox itself), the surround (the stone or tile around the opening), and the mantel (the shelf on top). They're rarely the same.

Always measure the mantel shelf. That's the visual anchor the eye reads, and it's what your art needs to relate to proportionally. The opening matters for heat safety, which we'll come back to, but it shouldn't drive your sizing decision.

If you have a fireplace without a mantel (common with modern linear gas fireplaces or minimalist tiled surrounds), measure the full width of the surround instead. The same 2/3 to 3/4 rule applies.

How high above the mantel should art sit?

You'll see wildly different numbers across design blogs: 7-15cm, 10-25cm, 15-30cm. The variation is real, and it depends on three things: ceiling height, mantel depth, and whether you have decor on the mantel itself.

Here's how we'd reconcile it:

10-15cm if your mantel is bare and your ceilings are standard (2.4m). This keeps the art and mantel feeling like one composition.

15-25cm if you style your mantel with candlesticks, vases, or small objects. The art needs to clear that visual layer without sitting on top of it.

25-35cm for taller ceilings (2.7m and above) or for mantels with substantial decor like tall vases or a clock. The extra breathing room scales with the room.

Below 10cm and the art looks like it's resting on the mantel. Above 35cm in a standard room and the piece starts to drift, losing its connection to the fireplace entirely.

Orientation: horizontal, vertical, or square?

The width of your fireplace surround should decide this for you.

Narrow fireplaces (under 100cm): vertical (portrait) art works beautifully. It draws the eye up and makes the fireplace feel taller and more important.

Standard fireplaces (100-150cm): square or horizontal pieces look most balanced. A 70x100cm portrait can also work if your ceiling is high.

Wide fireplaces (150cm+): horizontal (landscape) orientation is almost always the right call. A vertical piece on a wide modern fireplace creates an awkward dead zone of wall on either side.

For wide linear gas fireplaces, which can stretch to 180cm or more, this is where you can consider art that matches or slightly exceeds the surround width, particularly with a panoramic landscape format. It's the one exception to the "narrower than the mantel" rule, and it only works because there's no traditional mantel shelf to relate to.

A worked example

Say you have a Victorian fireplace with a 130cm mantel shelf, 2.5m ceilings, and you usually keep a pair of brass candlesticks (around 25cm tall) on the mantel.

Two-thirds of 130cm is roughly 87cm. Three-quarters is 97cm. So you want art between 87cm and 97cm wide. A 90x60cm landscape print sits right in the middle of that range.

For vertical spacing, you've got mantel decor and standard ceilings, so aim for 15-20cm above the candlesticks. That puts the bottom of the frame at roughly mantel height plus 40cm (candlestick height plus clearance).

If you went with our largest standard size of 100x70cm, you'd be at the top of the recommended range, which works fine. If you went smaller, say 60x40cm, the piece would look swallowed by the wall.

Adapting to your ceiling height

Standard sizing assumes 2.4 to 2.7m ceilings. If yours are different, the framework needs to flex.

Tall ceilings (3m+)

Single pieces often look lost. Either scale up significantly (a 70x100cm portrait print at the top of the range, or 100x150cm canvas) or stack two pieces vertically with 10-15cm between them. A vertical diptych can fill a tall wall the way a single piece can't.

Vaulted or double-height ceilings (4m+)

Don't try to fill the full wall. Hang your art so the centre point sits at standard eye level relative to the fireplace, not the ceiling. The wall above should remain empty, or carry one larger statement piece scaled to the room. Going up means going bigger, our oversized canvas prints reach 100x150cm specifically for these spaces.

Low ceilings (under 2.4m)

Horizontal orientation almost always wins. Vertical pieces emphasise the lack of height. Reduce the gap above the mantel to 8-12cm so the art reads as part of the fireplace composition rather than floating.

Pairs, triptychs, and arrangements

A single piece is the default for above a fireplace, but multiples can work brilliantly when sized correctly.

Diptych (two pieces side by side)

Treat the total width (both pieces plus the gap between them) as your single measurement. The combined width should still hit that 2/3 to 3/4 of the mantel. Keep the gap between the two pieces tight: 5-8cm reads as intentional, anything wider starts to look like two separate decisions.

Triptych (three pieces)

Same principle. Total width including gaps should equal 2/3 to 3/4 of the mantel. Three 30x40cm prints with 5cm gaps gives you a total width of 100cm, which suits a 130-150cm mantel.

Gallery wall

Trickier above a fireplace because the mantel creates a strong horizontal line that gallery walls can fight against. If you go this route, define an outer rectangle (again, 2/3 to 3/4 of mantel width) and arrange pieces within that imaginary boundary. Don't let the arrangement spill wider than the mantel itself.

Browse our framed prints collection if you're considering a multi-piece arrangement, since matching frames keeps gallery walls feeling cohesive.

Heat, soot, and material considerations

This is where most guides go quiet. If your fireplace is working (wood-burning or gas), heat and soot will affect anything you hang above it.

For active wood-burning fireplaces, leave at least 30cm between the top of the firebox opening and the bottom of your art. Soot rises, and over years it can dull paper-based prints and discolour frames. Glass-fronted gas fireplaces produce less of this, but a 20cm minimum is sensible.

Canvas tends to handle warm, dry conditions better than glazed framed prints because there's no sealed cavity for condensation to form. If you're in a draughty room with a working fire, canvas is the safer specification. Our canvas prints use a poly-cotton blend stretched over solid FSC wood, which holds its shape even when room temperatures fluctuate.

For framed prints above a working fire, UV-protective acrylic glazing (which we use instead of glass) won't crack from thermal shock the way glass can. It's also lighter, which matters when you're hanging something substantial on a chimney breast that may not have ideal fixings.

Should art be wider or narrower than the mantel?

Narrower, almost always. The mantel needs to remain the wider anchor for the composition to feel balanced. The only exceptions are:

1. Wide linear fireplaces with no traditional mantel, where a panoramic piece can match the surround width.
2. Statement pieces over very narrow Victorian mantels where the room calls for a larger artwork to balance ceiling height. Even then, exceed the mantel by no more than 10-15cm.

If your art is the same width as the mantel, the eye gets confused about which element is leading. One needs to clearly dominate.

Can you hang art too high?

Yes, and it's the second most common mistake after going too small. The midpoint of the art should sit roughly at eye level when you're standing in the room, which for most people is 145-155cm from the floor.

Above a fireplace, this often means the bottom of the frame sits just 10-25cm above the mantel. If your art is so high that you have to tilt your head back to see it properly, it's too high. The mantel and art should read as one connected composition, not two separate decorations.

What about a TV above the fireplace?

If you have a TV above the mantel, treat it as the art for sizing purposes. The 2/3 to 3/4 rule still applies. A 130cm mantel suits a TV roughly 90-100cm wide (around 42-48 inches).

If you want art alongside or around the TV, smaller flanking pieces (30x40cm vertical prints) on either side can soften the screen and integrate it into the wall. Don't try to hang art above the TV unless your ceilings are very tall, since you'll push it out of eye-level range.

Mirrors above the fireplace

Mirrors follow the same width rule (2/3 to 3/4 of the mantel), but you can hang them slightly lower because the reflection extends the visual space upward. 8-12cm above the mantel is typical.

The thing to watch with mirrors is what they reflect. A mirror above the fireplace will show whatever is on the opposite wall, so check the view before committing. If it reflects a blank wall or a doorway into a cluttered hallway, art will serve you better.

A quick reference

Mantel width	Art width (2/3 to 3/4)	Suggested orientation
90cm	60-67cm	Square or portrait
110cm	73-82cm	Square or landscape
130cm	87-97cm	Landscape
150cm	100-112cm	Landscape
180cm+	120cm+ or full-width	Panoramic landscape

For vertical spacing, start at 15cm above a bare mantel and add 5-10cm for every layer of mantel decor or 20cm of extra ceiling height.

Troubleshooting common situations

Corner fireplaces: Apply the same rules to the wider of the two walls. Often a single piece on the larger wall works better than trying to balance art across the corner.

Fireplace without a mantel: Measure the full surround. If there's no surround either, measure the full chimney breast and apply the rule to that. Centre the art horizontally on the chimney breast.

Brick chimney breast: Bricks can make framed prints look heavy. Canvas often works better here, since the lack of glazing keeps the visual weight lighter against textured backgrounds. Our art print collection has options in both formats so you can compare.

Two pieces of furniture flanking the fireplace: Make sure your art width is narrower than the gap between the furniture. If sconces or sconces flank the mantel, your art should sit inside those too.

The tape trick

Before you order, do this. Cut paper or use masking tape to mark the outline of your intended art size on the wall above the fireplace. Live with it for a day. Look at it from where you actually sit, where you walk into the room, and from across the kitchen if it's an open-plan space.

This catches sizing mistakes before they cost you. If the tape outline looks small, go up a size. It almost always looks bigger on the wall than it does in tape because the visual weight of a real frame and image is heavier than an empty rectangle.

Measure your mantel, run the numbers, mark the wall, and order one size up if you're between options. Art above a fireplace is the focal point of the room, and the most common regret is wishing you'd gone bigger.