Wood ventilation grille TRIANGLE square 2-piece for opening 125x125mm
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    • Wood ventilation grille TRIANGLE square 2-piece for opening 125x125mm
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    Differences between types of ventilation grilles – 1-piece vs 2-piece
    What is the difference between a 1-piece and a 2-piece ventilation grille?

    Watch a quick comparison video to see the difference in construction, installation and everyday use. Find out which grille is more suitable for a wall, ceiling or door.

    Ventilation grille patterns – design and styles
    What ventilation grille patterns are available?

    Discover different designs – from minimalist to decorative patterns. Choose the style that best matches your interior.

    Ventilation grille - TRIANGLE square 2-piece

    €24.48
    VAT included €19.90 without VATDelivery 4-5 days
    • Design: TRIANGLE
    • Beech wood: uncoated (no varnish)
    • 2-piecemagnets
    • Interior: wall / ceiling / door
    • 125 / 160 + custom size
    Size: Air vent up to 125 mm - External dimensions 188 x 188 mm
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    Square 2‑piece wooden ventilation grilles with magnetic mounting are a design‑focused solution for modern, architecturally clean interiors.

    Ventilation grille TRIANGLE – square, 2‑piece (with magnets)

    Two‑piece ventilation grilles – square collections by decorair

    Geometric wooden design ventilation for modern interiors

    The TRIANGLE – square, 2‑piece ventilation grille is designed for interiors that value functional ventilation and a strong geometric look. It combines efficient airflow with precisely defined shapes, so it reads as a modern architectural detail rather than a technical add‑on.

    Suitable for covering ventilation openings in walls or ceilings, it fits modern homes, architecturally clean interiors and design‑led spaces.


    Available sizes and variants

    The TRIANGLE – square, 2‑piece grille is available in multiple sizes so you can easily match it to your opening.

    Variant 160

    • External dimensions: 240 × 240 mm
    • Height (thickness): 13 mm
    • Suitable for openings: up to 160 × 160 mm

    Ideal for larger openings where you need sufficient airflow while keeping a bold geometric appearance.

    Variant 125

    • External dimensions: 188 × 188 mm
    • Height (thickness): 13 mm
    • Suitable for openings: up to 125 × 125 mm

    A more compact size for smaller rooms or technical areas where a clean, precise look is preferred.

    Custom sizes

    • Custom dimensions: available on request

    On request, we can manufacture TRIANGLE in bespoke dimensions tailored to your project or opening.


    Why the right ventilation grille matters

    • removing moisture from interiors,
    • improving air quality,
    • reducing the risk of condensation and mould,
    • supporting natural air circulation between rooms.

    TRIANGLE allows smooth airflow with no unnecessary resistance, supporting stable and quiet ventilation.


    2‑piece design for easy installation

    • precise placement over the opening,
    • quick and simple installation,
    • clean result with no visible fixing.

    Installation is possible by bonding or with screws depending on the substrate. The grille is designed to cover the opening from the outside, not to be inserted into ducting.


    Material and craftsmanship

    • precise CNC machining,
    • crisp, clean geometric lines,
    • natural surface appearance.

    Wood combined with a geometric pattern creates a striking contrast between natural material and modern form.


    Natural finish without surface treatment

    The TRIANGLE grille is supplied untreated and unvarnished. It keeps the authentic wood texture and a natural, matte look without glossy layers.

    • clean natural material look,
    • option for your own finish,
    • long‑term visual stability,
    • timeless design without varnish.

    TRIANGLE pattern design

    The TRIANGLE pattern is built on precise geometry and repeated triangular shapes. It feels dynamic, modern and architectural while staying visually balanced.

    Perfect for modern, industrial and minimalist interiors where form, rhythm and detail matter. Here, the grille becomes a design element that adds structure and character.

    With natural wood, TRIANGLE delivers a bold yet balanced ventilation solution for customers who want a clear geometric identity.


    Where TRIANGLE can be used

    • modern living spaces,
    • industrial and minimalist interiors,
    • offices and architectural spaces,
    • new builds and renovations.

    Designed to cover ventilation openings and support natural air circulation indoors.


    Benefits compared to standard solutions

    • bold geometric design without a technical look,
    • quiet operation with no moving parts,
    • easy installation thanks to magnets,
    • long service life,
    • natural wood without varnish.

    Summary

    Ventilation grille TRIANGLE – square, 2‑piece (with magnets) is ideal for those who want to pair functional ventilation with modern geometric design. It provides solid airflow and acts as a distinctive architectural accent.


    More design patterns

    If you like this style, explore other design variants from our collection:

    • CUBE – cubic geometry
    • CROSS – cross pattern
    • BOX – clean geometry
    • LINE 03 – bold lines
    • BEE – hexagonal pattern

    Frequently asked questions

    What is the TRIANGLE ventilation grille for?

    TRIANGLE covers ventilation openings in walls or ceilings and supports natural air circulation. Its geometric pattern creates a modern visual accent.

    Is TRIANGLE treated or varnished?

    No. TRIANGLE is supplied untreated and unvarnished.

    How is it installed?

    It’s a 2‑piece product with magnetic fixing. Installation is possible with adhesive or screws.

    Which sizes are available?

    TRIANGLE is available in variants 125 and 160. Custom sizes can be made on request.
    TRI2-SQ-125
    31 Items

    Data sheet

    Material
    Wood - beech
    finish
    Without surface treatment (unpainted)
    Grille type
    Two-piece
    External dimension
    188 X 188 | 240 X 240 mm
    The size of the ventilation hole.
    125 x 125 mm | 160 x 160 mm
    Magnets
    ✔ YES

    Download

    (SK) Aktívna plocha

    Aktívna plocha vetracích mriežok - perforácia

    Download (6.67MB)

    (EN) Active area

    Active area of ventilation grilles - perforation

    Download (6.66MB)

    (DE) Aktive Fläche

    Aktive Fläche der Lüftungsgitter - Perforation

    Download (6.66MB)

    (FR) Surface active

    Surface active des grilles de ventilation - perforation

    Download (6.68MB)

    (ES) Área activa

    Área activa de las rejillas de ventilación - perforación

    Download (6.68MB)
    What wood are square ventilation grilles made from?

    The grilles are made of high-quality beech plywood, which is strong, stable, and suitable for interior use.

    Are ventilation grilles suitable for both air supply and exhaust?

    Yes, the slat construction enables efficient airflow and the grilles are suitable for both air supply and air exhaust.

    What are square ventilation grilles used for?

    Square ventilation grilles allow natural air circulation between rooms or between a room and a ventilation system. At the same time, they cover the ventilation opening and create an aesthetic design element in the interior.

    What sizes of square ventilation grilles are available?

    The most common sizes are 188 × 188 mm and 240 × 240 mm, designed to cover standard ventilation openings in walls or doors.

    Where are square ventilation grilles installed?

    Square grilles are most commonly installed on a wall or ceiling to cover a ventilation opening. Thanks to their design, they are also used as door ventilation grilles, for example between a bathroom and a hallway.

    Is it possible to manufacture a custom square grille?

    Yes, we also offer custom manufacturing according to the required size, allowing precise adaptation to a specific ventilation opening.

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