Which vertical format to balance the horizontality of a built-in TV unit?
May 2, 2026 · 7 min read · by Walensky
I remember this client in Neuilly who had invested in a magnificent custom TV unit: solid walnut, perfect niches, built-in lighting. Yet something was off. Her gaze kept returning to this wall that seemed to stretch on endlessly, visually overwhelming her living room despite its generous size. The problem? No verticality to break that relentless horizontal line.
Here is what a well-chosen vertical format brings to your built-in TV unit : it creates an upward focal point that naturally guides the eye, it harmonizes the proportions by breaking the horizontal monotony, and it adds depth and character to an ensemble that would otherwise risk looking flat and impersonal.
You have probably felt it: that impression that your beautiful furniture seems to crawl along the wall rather than fully inhabit it. You may display your finest books and carefully chosen objects, yet the result remains... horizontal. Flatly horizontal. And the television at the center, with its 16:9 format so characteristic of our era, only accentuates this dominance that pulls the eye sideways.
Reassure yourself: this visual imbalance is not inevitable, and you do not need to entirely rethink your layout. A few strategic interventions are enough to rebalance the whole and transform this unit into a truly architectural composition. I will show you precisely how to choose the right vertical formats to create the harmony that still eludes you.
The rule of vertical thirds: your best architectural ally
In my studio, I systematically apply this principle borrowed from classical architecture: for each built-in TV unit, I mentally divide the height into three distinct zones. This approach allows me to determine precisely which vertical format will create the optimal visual balance.
The lower zone, from the floor up to the first third, naturally holds horizontal elements: books laid flat, low consoles, storage boxes. It is the foundation of your composition. The central third, where your screen usually sits, constitutes the horizontal core that must absolutely be counterbalanced. And it is in the upper third that your vertical format will find its full power.
For a standard unit 240 cm high, your vertical formats should ideally measure between 90 and 140 cm. This proportion creates what I call an upward visual dialogue : the eye naturally rises from the horizontal television toward the vertical element that balances it, creating dynamic movement rather than a dead line.
Vertical paintings: the secret weapon of interior designers for integrated spaces
I have transformed dozens of TV units with this single intervention: the strategic addition of vertical-format artworks. Not just anywhere, not just any way. The magic happens when you position a narrow, tall painting in one of the side niches, instantly creating a vertical tension that counterbalances the dominant horizontality.
For a unit 180 cm wide, a 40x120 cm format works admirably in a side niche. If your unit exceeds 240 cm, dare the 50x150 cm, or even the 60x180 cm for large compositions. The frequent mistake? Choosing a modest format that gets visually crushed by the surrounding horizontality.
The composition itself matters enormously. I systematically steer my clients toward visuals with an upward movement : slender architectures, upright trees, vertical silhouettes, abstract compositions with rising lines. This iconographic choice reinforces the effect of verticality well beyond the simple format of the frame.
Strategic placement makes all the difference
Contrary to intuition, the vertical format need not necessarily sit at the center of your TV unit. On the contrary, I often favor an off-center position, on one of the side uprights, thus creating a visual anchor point that balances the whole through dynamic asymmetry.
If your unit has several niches, consciously alternate the orientations: one niche with horizontal books, the next with a vertical element, then horizontal again. This visual breathing breaks the monotony without creating chaos. It is exactly this rhythm that is missing from compositions that feel flat.
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Discover this paintingSlender vases and sculptures: verticality in three dimensions
Beyond two-dimensional vertical formats, sculpted objects with height bring an additional, fascinating dimension: depth. A 60 cm tapered vase, a slender sculpture, an architectural lamp create vertical shadows that further reinforce the desired effect.
To integrate these elements into your TV unit without overcrowding, respect the rule of mass contrast : if your unit has solid volumes (numerous books, multiple objects), opt for slim, uncluttered vertical forms. Conversely, if your niches are airy and minimalist, you can afford larger, more sculptural vertical formats.
I am particularly fond of tall cylindrical vases in matte ceramic, whose simplicity contrasts with the technical complexity of a built-in TV unit. Their pure verticality, without ornament, guides the eye upward with a discreet elegance that never competes with your framed works.
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Architectural plants: when nature sculpts verticality
Nothing rivals the organic verticality of a 120 cm Sansevieria or a slender indoor bamboo to soften the technical horizontality of a TV unit. These living presences introduce a temporal and sensory dimension that radically transforms the perception of the whole.
The vertical plant format has this unique advantage: it moves slightly, catches light differently throughout the day, evolves with the seasons. Against the geometric rigidity of your built-in furniture, this upward suppleness creates an absolutely magical contrast that I exploit systematically in my compositions.
For a unit of standard height, favor plants whose silhouette reaches at least two-thirds of the total height. A small 30 cm cactus on a 240 cm unit will create no vertical balance ; it will visually disappear. Dare the large formats: Ficus lyrata, Dracaena marginata, Strelitzia for bright spaces.
The architectural planter technique
The container considerably amplifies the effect of verticality. Choose slender planters rather than squat ones: a cylindrical pot 40 cm tall added to an 80 cm plant gives you an ensemble of 120 cm that truly transforms the vertical dynamics of your built-in TV unit.
Vertical mirrors: doubling space and height simultaneously
Here is a technique I particularly use in constrained spaces: integrating a vertical-format mirror into one of the sections of the unit. The effect is spectacular, because you simultaneously create an impression of height AND depth, doubly breaking the oppressive horizontality.
A mirror in 35x100 cm format set against the back of a side niche creates an illusory vertical window that literally draws the gaze upward. This simple intervention transforms a basic TV unit into a sophisticated architectural composition, with minimal investment.
Be careful, however, with positioning: absolutely avoid mirrors that would directly reflect your lit screen, creating unpleasant stray glare. Favour side alcoves, far enough from the television to reflect instead the natural light from your windows or the vertical decorative elements themselves, in a fascinating play of visual multiplication.
Transform your unit into a true architectural composition
Discover our exclusive collection of Bookcase paintings that bring this elegant verticality capable of perfectly balancing your built-in space.
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The fatal mistake: multiplying formats without coherence
I must warn you against the temptation of the catalogue: accumulating different vertical formats without an overall vision. I have seen too many TV units turned into visual clutter through excess zeal. A vertical painting here, a plant there, a vase elsewhere, a mirror again... and the final result is worse than the original horizontality.
The golden rule? Choose one or two dominant vertical formats at most for a standard unit. If you opt for a large vertical painting on the right, balance it with an architectural plant on the left, and that is all. This compositional restraint creates a far more powerful impact than a scattered accumulation.
Also think about stylistic coherence : if your built-in TV unit displays a clean contemporary style, your vertical formats must respect that restraint. Clean lines, controlled colors, simple geometric shapes. Conversely, a piece with a more classic character will accept more ornate formats, worked frames, more generous plant compositions.
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Discover this painting →The final technique: playing with varied heights
Here is a refinement I apply in my most accomplished projects: creating a dialogue between several verticals of staggered heights. Rather than a single large vertical format, three elements of different heights (for example 60 cm, 90 cm and 120 cm) create a true upward visual melody.
This approach works particularly well on large TV units over 300 cm wide, where a single vertical format would look isolated. By distributing three vertical elements of graduated sizes, you create a rhythm that naturally guides the eye in a fluid and harmonious movement.
The trick is to position the tallest format opposite the television, creating a diagonal balance : if your screen sits slightly left of center, your maximum vertical element should be on the right, and vice versa. This implicit diagonal structures the whole in an extremely sophisticated way.
Imagine your gaze entering your living room tomorrow evening, after applying these principles. Instead of sliding lazily along that horizontal line that frustrated you, your eye discovers a living, architected composition. It rises naturally toward that slender painting catching the light, descends toward the screen, bounces toward that majestic plant bringing life and verticality. Your built-in TV unit is no longer a mere functional piece of furniture: it becomes a true inhabitable sculpture that structures and enhances your space.
Start simply: choose a single vertical format this week. A painting, a plant, a mirror. Position it deliberately according to the principles we have explored. Observe the transformation. Then, if needed, add a second element to perfect the balance. Above all, trust your eye: it will tell you when verticality and horizontality finally dance together in your unit.
Frequently asked questions
What size vertical painting near a TV unit?
For a unit 240 centimeters high, aim for a vertical format of 90 to 140 centimeters. On a unit 180 centimeters wide, a 40x120 works well in a side niche; beyond 240 centimeters wide, dare the 50x150, or even the 60x180.
Should the vertical painting be centered on the unit?
No, off-centering often works better. Placing the work on one of the side uprights creates an anchor point that balances the whole through dynamic asymmetry. If the unit has several niches, alternate consciously: horizontal books, then a vertical element, then horizontal again.
Which motifs to choose to reinforce the vertical effect?
Favor visuals with upward movement: slender architectures, upright trees, vertical silhouettes, abstract compositions with rising lines. This iconographic choice reinforces verticality well beyond the simple format of the frame and counterbalances the horizontality of the television installed at the center of the unit.
What plant height to balance a TV unit?
Aim for at least two-thirds of the unit's total height. A small 30 centimeter cactus on a 240 unit visually disappears. A slender planter helps: a 40 centimeter cylindrical pot added to an 80 plant gives an ensemble that truly counts.
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