Single, Diptych or Triptych: How Much Wall Do You Actually Need?

Last updated: July 2026 · By Stanislav Arnautov · Berlin · 14 min read

The question people actually ask is "which one should I get," and the honest answer is that it has almost nothing to do with budget and almost everything to do with the wall.

A triptych is not a better version of a single deck. It is a different object with a different job, and putting one on the wrong wall looks worse than putting a single deck there — more expensively worse. This guide gives you the measurements and the arithmetic to get it right the first time.

The three formats and exact dimensions

Three things follow from these numbers that are worth stating plainly.

These are wide, shallow formats. Every option is 20 cm tall. That is unusual in wall art and it is the whole reason decks work where framed pictures do not: they fill horizontal bands — above a headboard, along a corridor, over a doorway — that conventional art cannot address.

The gaps are part of the measurement. A triptych is not three decks you arrange however you like; it is a single image split across three panels, designed to be hung with 5 cm between them. Change the spacing and the image no longer aligns.

A triptych is genuinely large. At 256 cm it is wider than most sofas, wider than a king bed, and wider than many people picture when they order it. That is the single most useful fact in this guide.

The two-thirds rule, with real numbers

The standard interior design guideline is that artwork hung above a piece of furniture should span roughly two-thirds to three-quarters of that furniture's width. Narrower and the art looks stranded; wider and it overhangs, which reads as a mistake rather than as a choice.

Run the arithmetic backwards and each format tells you exactly what furniture it belongs above.

This is where most people go wrong, so it is worth being blunt about it. A standard three-seat sofa is 200–220 cm wide. The correct format above it is a diptych, not a triptych. A 256 cm triptych above a 210 cm sofa overhangs by roughly 23 cm at each end, and the eye reads that overhang immediately even if it cannot name what is wrong.

Triptychs are for genuinely large walls: an L-shaped sectional, a 350 cm sideboard, a wall with no furniture beneath it at all, or a commercial space. They are magnificent in those settings and awkward everywhere else.

Match the format to your furniture

Measure the furniture, not the wall. The wall tells you what will physically fit; the furniture tells you what will look right.

Above a three-seat sofa (200–220 cm) — a diptych. At 171 cm it lands at about 80% of a 210 cm sofa, comfortably inside the range and visually anchored. A single deck here looks lost; a triptych overhangs.

Above a two-seat sofa or loveseat (150–170 cm) — a single deck, or a diptych if you want the wall to feel fuller. 171 cm above a 160 cm sofa slightly exceeds the furniture width, which is acceptable in a room with high ceilings and looks heavy in a low one.

Above a bed — measure the bed, not the mattress. A double (140 cm) takes a single deck. A king (180 cm) takes a diptych, which at 171 cm sits just inside the bed width and looks deliberate. This is the most reliable placement in the whole catalogue, because the horizontal band of a deck echoes the horizontal line of a headboard.

Above a desk or console (110–140 cm) — a single deck. This is the format's home ground, and it is why a single is not a compromise purchase.

Above a sideboard or long console (200 cm+) — a diptych at 200–260 cm of furniture, a triptych beyond 340 cm.

A corridor or stairwell wall — any format, because there is no furniture to relate to. Here the constraint is the wall length: leave at least 30–40 cm of clear wall at each end, so a triptych needs a run of about 320 cm minimum.

Room by room

The stairwell case is worth expanding, because people get it wrong in an interesting way. A staircase wall wants a sequence that follows the diagonal, so three separate single decks stepped down the incline works far better than one 256 cm triptych hung horizontally across it. The triptych is a single image and must stay level; three singles can follow the stairs.

Our room-by-room decorating guide covers colour and palette matching for each of these spaces.

Hanging height and spacing

Two numbers cover almost every case.

Centre at 145–150 cm from the floor when there is no furniture beneath — this is standard gallery eye level and it is the height museums use. Because a deck is only 20 cm tall, that means the top edge sits at roughly 155–160 cm and the bottom at 135–140 cm.

Leave 15–20 cm above furniture when there is a sofa, headboard or sideboard below. Any less and the art appears to rest on the furniture; any more and the two stop reading as a group. This rule overrides eye level — a piece above a sofa will usually sit slightly lower than 150 cm, and that is correct.

Spacing between panels is 5 cm for diptychs and triptychs, and this is not adjustable in the way it is for a gallery wall. The image is split across the panels and designed around that gap. If you hang a triptych with 10 cm gaps, the composition stretches and the alignment across panels visibly breaks.

For separate single decks displayed as a group, 5–8 cm is the range that reads as intentional. Full instructions for fixings, wall types and levelling multi-panel sets are in the mounting guide.

When a single deck is the right answer

A single deck is the correct choice more often than the pricing suggests, and it is worth saying so rather than steering everyone upward.

Small rooms. In a flat under about 50 m², a triptych does not make the room feel grander; it makes it feel crowded. Scale down, not up. A single well-placed deck in a small room reads as confidence; an oversized piece reads as a room straining.

Rooms that already have art. If there is work on the walls, a 256 cm triptych does not join the conversation — it ends it. A single deck sits alongside what you own.

Narrow walls. The strip beside a door, between two windows, above a radiator. These are the spaces nothing else fits, and they are precisely where a single 85 cm deck earns its place.

When you want to start. Buying one deck and living with it for a month tells you more about what you want than any amount of deliberation. Decks are also straightforward to add to later, because the format and the framing logic stay consistent.

As a gift. Unless you have measured the recipient's wall, a single deck is the safer purchase. Our gift guide goes into this: scale mismatches are the most common reason a gifted artwork never gets hung.

Five sizing mistakes

1. Buying a triptych for a standard sofa. The most common and most costly error. A 256 cm triptych over a 210 cm sofa overhangs by about 23 cm each side. The correct format there is a diptych.
2. Measuring the wall instead of the furniture. A 4 m wall does not mean you need 4 m of art. If there is a 200 cm sideboard on it, the sideboard sets the scale.
3. Hanging too high. Almost everyone does this. Centre at 145–150 cm, or 15–20 cm above furniture, and resist the instinct to go higher.
4. Changing the panel gaps. The 5 cm spacing on a diptych or triptych is part of the artwork. Widening it breaks the image across the panels.
5. Scaling up in a small room. A large piece does not make a small room feel larger. It makes the walls feel closer.

Frequently asked questions

What size is a skateboard wall art deck?

A single deck is 85 × 20 cm, or 33.5 × 7.9 inches. A diptych of two panels spans 171 × 20 cm, and a triptych of three panels spans 256 × 20 cm, both with 5 cm gaps between the panels included in those measurements. Every format is 20 cm tall, which is what makes decks useful in places conventional framed art cannot go: the narrow strip beside a door, the band above a headboard or doorway, the space between two windows. The height stays constant across all three formats, so the only variable when choosing is width, and width should be decided by the furniture below rather than by budget.

Should I buy a diptych or a triptych for above my sofa?

For a standard three-seat sofa of 200–220 cm, buy a diptych. The design guideline is that artwork should span roughly two-thirds to three-quarters of the width of the furniture beneath it, and a 171 cm diptych lands at about 80% of a 210 cm sofa, which sits comfortably in range and anchors the wall. A 256 cm triptych above the same sofa overhangs by roughly 23 cm at each end, which the eye registers as an error even if you cannot immediately name what is wrong. Triptychs suit large L-shaped sectionals, sideboards over 340 cm, unfurnished walls and commercial spaces such as offices and hotel lobbies.

How high should I hang skateboard wall art?

Centre the piece at 145–150 cm from the floor when there is no furniture beneath it, which is standard gallery eye level. Since a deck is only 20 cm tall, the top edge will sit at roughly 155–160 cm and the bottom at 135–140 cm. When there is a sofa, headboard or sideboard below, a different rule takes priority: leave 15–20 cm of clear space between the top of the furniture and the bottom of the artwork. Any less and the piece appears to rest on the furniture; any more and the two stop reading as a single group. This usually places the artwork slightly below strict eye level, which is correct.

Can I change the spacing between triptych panels?

Not without visibly damaging the composition. A triptych is a single image split across three panels and designed around a 5 cm gap, which is included in the stated 256 cm total width. Widening the gaps stretches the composition and breaks the alignment of the image where it crosses from one panel to the next — lines and colour fields that should continue across the gap no longer meet. This is the key difference between a multi-panel artwork and a gallery wall of separate pieces: with individual single decks you can choose your own spacing, and 5–8 cm reads as deliberate, but a diptych or triptych has one correct spacing.

What size skateboard art fits above a bed?

Measure the bed frame rather than the mattress. A double bed at around 140 cm suits a single deck at 85 cm, which lands close to two-thirds of the bed width. A king bed at around 180 cm suits a diptych at 171 cm, which sits just inside the bed's width and looks deliberate rather than accidental. This is among the most reliable placements in the catalogue, because the long horizontal band of a deck echoes the horizontal line of the headboard beneath it. Leave 15–20 cm between the top of the headboard and the bottom of the artwork.

Is a triptych too big for a small apartment?

Usually, yes. In a flat under roughly 50 m², a 256 cm triptych does not make the space feel grander — it makes the walls feel closer and the room feel crowded. The instinct to scale up in a small room is understandable and almost always wrong. A single deck at 85 cm placed well reads as confidence, while an oversized piece reads as a room straining against its own dimensions. Small spaces also tend to have walls broken up by doors, windows and radiators, which leaves narrow vertical and horizontal strips where an 85 × 20 cm deck fits and nothing else does.

Article summary

Skateboard wall art comes in three formats: a single deck at 85 × 20 cm from €140, a diptych at 171 × 20 cm from €230, and a triptych at 256 × 20 cm from €310, with 5 cm gaps included in the multi-panel measurements. Choose the format by measuring the furniture beneath, not the wall, and apply the two-thirds rule: artwork should span roughly two-thirds to three-quarters of the furniture's width. A single deck suits desks, consoles, armchairs and double beds of 110–140 cm. A diptych suits a standard three-seat sofa of 200–220 cm or a king bed. A triptych needs 340 cm or more of furniture — a large sectional, a long sideboard or a commercial wall — and is too wide for a standard sofa, where it overhangs by about 23 cm at each end. Hang at 145–150 cm to centre, or 15–20 cm above furniture, whichever applies. Panel gaps on diptychs and triptychs are fixed at 5 cm because the image is split across the panels. In small rooms, scale down rather than up.

About the author

Stanislav Arnautov is the founder of deckarts, a graphic designer and print specialist originally from Ukraine, now based in Berlin, where he personally designs and prepares every deck. Follow the work on Instagram or at stasarnautov.com.