Printing in your colours
Pattern, photo, mural or discreet logo: the wall becomes a visual medium.
See made-to-measure →Product · Wall panels
Made-to-measure acoustic wall panels.
The PET felt wall panel is the simplest way to bring a room's echo down. Absorbent and decorative at once, it prints in your colours and installs in a few hours. ACOUSTELIO makes them to measure, fire-certified for public buildings.
The principle
Absorb the sound, don't block it.
A wall panel is not there to soundproof two rooms: it treats sound inside a single space. PET felt is porous: sound waves penetrate it and their energy dissipates instead of bouncing off the hard walls. The result: reverberation drops, voices carry less, the room becomes calmer and more intelligible. The same product goes by other names, acoustic board or wall tile: whatever the label, it is an absorber, not a soundproofing barrier.
Concretely, a wave that hits a bare wall (glass, concrete, painted plasterboard) bounces back almost intact and strikes the wall opposite. It rebounds several times before dying out: it is this chain of reflections that lengthens the sound tail and blurs speech. By inserting an absorbent surface in the wave's path, you break these back-and-forths. The sound is captured at first contact instead of feeding the echo.
This is exactly the answer to the din of offices and restaurants. To understand the difference with soundproofing, see acoustic treatment vs soundproofing.
Performance
Effective where it counts: the voice.
PET felt performs particularly well on mid and high frequencies, roughly 600 to 5000 Hz, the band of human speech. That is what makes it ideal against overlapping conversations. Our panels reach an absorption coefficient of NRC 0,85: up to 85 % of the incident noise absorbed.
Why target this frequency band? Because the discomfort of a noisy room rarely comes from the lows: it comes from voices that linger and get understood despite yourself. By capturing the energy between 600 and 5000 Hz, the panel shortens the sound tail where the ear is most sensitive. You keep a living room, without the muffled, dull feel of a badly tuned treatment. Absorption stays measurable: the NRC coefficient is set out on the absorption coefficient data sheet.
A material made partly from recycled PET, light, free of irritating fibres, and fire-certified B-s1,d0. All the evidence in the technical data sheet supplied.
0,85
NRC absorption coefficient
250-4000Hz
human voice band treated
9-12mm
wall panel thickness
10-15d
manufacturing and DDP delivery
Where to fit them
The right walls, in the right places.
The wall panel makes the difference where the sound bounces and where people speak.
Meeting room
Small volume, big table, a screen wall: sound bounces and video calls become painful. A few panels at the reflection points make speech crisp on both sides of the camera.
Restaurant & café
Hard walls and closely packed guests drive up the din. Panels on the large spans bring the sound level down and diners stop raising their voices.
Open-plan office
Alongside the ceiling, a few wall surfaces on the large glazing or concrete spans break the lateral reflections between rows of desks.
Reception & lobby
Large volume, plenty of hard surface, a strong first impression. A printed signature wall sets the tone from the entrance while calming the echo of busy spaces.
How much surface
How much wall do you need to treat?
The question comes up on every project, and the answer holds in one principle: placing well matters more than covering a lot. In practice, treating 15 to 30 % of the walls in absorbent surface already clearly changes how an office or a restaurant feels. No need to line an entire room: the first well-positioned square metres bring most of the gain.
The spots that pay off the most are the walls that face each other (they sustain the back-and-forth of the sound) and the first-reflection points, where the wave bounces before reaching the ear. We spot these zones from your plan and the position of the desks or tables, then concentrate the panels there. The rest of the walls can stay bare with no noticeable loss of comfort.
We start from your dimensions (surface, ceiling height, wall type) to estimate the useful quantity and propose a costed layout, without oversizing. You know what you are buying and the expected effect, not a number of panels pulled from a catalogue. The quote details everything, free and within 48 h.
Formats & finishes
Made-to-measure, down to the smallest detail.
You choose the shape, the size, the colour and the print.
Free shapes & dimensions
Rectangles, hexagons, free forms, to the exact dimensions of your wall.
Office acoustics →
Simple & quick install
Light: bonding or screws, in a few hours, with no major building work.
Restaurant acoustics →Formats, thicknesses, finishes
A panel cut for your wall.
Our wall panels are generally 9 to 12 mm thick. That is the right compromise: enough material to capture the voice effectively, thin enough to stay discreet and not eat into the space. This thickness is enough for the vast majority of offices, restaurants and meeting rooms, where the problem comes from mid and high frequencies.
On shapes, everything starts from your wall. Two standard formats, 100 × 100 cm and 120 × 60 cm, answer simple, urgent projects; for the rest, each acoustic board is cut to the exact dimensions of your wall. Rectangles and squares for a crisp look, hexagons or discs for a graphic scatter, free cuts to hug a constraint or draw a pattern. You can compose a mural from several butted modules or a set of spaced shapes that lets the wall breathe. Shades are chosen from several dozen colours, from warm neutrals to bold tones.
On the final look, two schools coexist: the panel fitted flat, sober and flush, or the panel offset by a few millimetres that creates a cast shadow and relief. By mixing several thicknesses and a scatter of shapes, hexagons, discs, vertical blades, you push to a real 3D effect: light catches the edges and the wall becomes a relief decor. We steer the choice by the intended mood and the style of the space. For projects that want to go further in customisation, everything is decided on the printed made-to-measure side.
Which absorber to choose
PET felt for walls, foam or cork?
Three materials often compared to dress a wall. Here is where each one really stands.
PET felt (us)
Foam / cork
Absorbs the voice (NRC 0,85)
Printable made-to-measure
Fire-classified B-s1,d0 (public buildings)
Does not crumble, lasts over time
Finished decorative look
A decor element in its own right
Raw or technical appearance
Maintenance
Vacuum, damp cloth
Delicate, damages quickly
The ACOUSTELIO difference
An absorber that doesn't look like an absorber.
Too many acoustic panels look like technical tiles. Ours print and cut to your image: you gain sound comfort without sacrificing the decor. Performance and aesthetics in the same product, approved on a proof before production.
Need to treat the ceiling too? See the ceiling baffles.
The install
Bonding or screws: two methods, a few hours.
PET felt panels are light, so the install stays simple and free of major building work. Two methods cover almost every case. Bonding, with double-sided mounting tape, suits flat, clean surfaces: painted plasterboard, smooth concrete, glass. It is the fastest and most invisible solution, ideal when you want a flush panel.
The screw fixing, with spacers, is the way to go on irregular walls, fragile partitions, or when you want to offset the panel. The spacers create a 20 to 40 mm air gap behind the panel: this small space extends absorption towards lower frequencies, useful in a meeting room or a music space. It is also what gives the relief and cast shadow of an offset mounting.
No special skill is required: most teams install themselves in half a day. We provide fitting recommendations suited to your surface (plasterboard, concrete, glass, wood) and the layout plan. For a large or high-level job, we can point you to an installer.
How it works
From your wall to the fitted panel, in 4 steps.
01
Measure & need
Dimensions, hard surfaces, target sound ambience.
02
Mock-up & proof
Layout, approved printed visual, quote within 48 h.
03
Manufacturing
Made-to-measure cutting and printing, fire-certified.
04
Delivery & install
Delivered DDP, ready to fit, within 10 to 15 days.
Calmer walls, fitted in a few hours.
Send your dimensions or a few photos, quote within 48 h.
Request my free quoteMaintenance & lifespan
A panel that ages well.
PET felt needs little attention day to day. A pass with a soft-brush vacuum removes dust, and a damp cloth with a little neutral soap is enough for a stain, without rubbing hard. Unlike acoustic foam, the material does not yellow in the sun and does not crumble over time: it keeps its look for several years, even in a busy spot.
This low maintenance weighs in the choice for a restaurant, a lobby or a reception, where stretched fabrics get dirty and are hard to repair. The panel stays a clean investment over time. The detail of the material and its recycled share is set out on the PET felt data sheet.
Compliance
Ready for public buildings, file included.
As soon as a space receives the public (restaurant, shop, reception office, gym), the fire reaction of wall coverings is regulated. Our panels are classified EN 13501-1 B-s1,d0, the level expected in public-access buildings: low contribution to fire, very little smoke, no flaming droplets. It is a criterion regularly checked by the safety commission, so it is better to settle it up front.
The classification report and the absorption data sheet come with every order, ready for the commission or the inspection body. Compliance is part of the quote, it is not an option to tick at the end of the process. The detail is available on the EN 13501 fire classification side.
Frequently asked questions
Wall panels: your questions.
What is an acoustic wall panel?
It is an absorbent panel fixed to the wall to reduce the reverberation of a room. Unlike a soundproofing board that blocks noise between two premises, the wall panel treats sound inside the room: it absorbs the waves bouncing off hard surfaces and brings the echo down. Ours are made of PET felt, a light, fibrous material that is particularly effective on voice frequencies. They act both as an absorber and as a piece of wall decor.
Why is PET felt effective?
PET felt is a porous material: sound waves penetrate it and their energy dissipates as heat instead of bouncing back. It performs best on mid and high frequencies, between roughly 600 and 5000 Hz, exactly the band of human speech. That is what makes it an excellent choice for offices, restaurants and meeting rooms, where the problem comes from overlapping voices. Our panels reach an NRC absorption coefficient of 0,85.
How much wall surface do you need to cover?
It depends on the volume of the room and its hard surfaces. As a rule of thumb, you aim for 15 to 30 % of the walls in absorbent surface for clear comfort in an office or a restaurant. It is better to position the panels well (on facing walls and at reflection points) than to cover everywhere. We start from your plan (dimensions, height, materials) to estimate the useful quantity and propose a costed layout, without oversizing.
How are wall panels installed?
Very simply. PET felt panels are light: you fit them by bonding (double-sided mounting tape) or with screws and spacers, depending on the surface and the look you want. No special skill and no major building work: an installation usually takes a few hours. We provide fitting recommendations suited to your wall (plasterboard, concrete, glass, wood). For a large project, we can also point you to an installer.
Are they decorative and customisable?
Yes, that is their double asset. Beyond absorption, our panels print to your identity: pattern, photo, mural, gradient, discreet logo. You choose the shapes (rectangles, hexagons, free forms), the dimensions and the colours. The panel becomes a genuine piece of wall decor rather than a visible technical tile. A proof (BAT) is submitted for your approval before production.
Do you need an air gap behind the panel?
It is not mandatory, but it helps on low frequencies. A panel bonded flat on the wall already absorbs the voice very well. Setting it off by 20 to 40 mm with spacers creates an air gap that extends absorption towards lower frequencies, useful in a meeting room or a music space. We choose the fitting (flat or offset) according to the acoustic target of the room, not by default. It is a simple adjustment that changes the result without changing the panel.
How do you maintain the panels?
PET felt needs little maintenance. A regular pass with a soft-brush vacuum is enough to remove dust. For a stain, a damp cloth with a little neutral soap, without rubbing hard, does the job. The material does not yellow and does not crumble like foam: it keeps its look for several years. In a restaurant or a busy spot, this low maintenance is a real advantage over stretched fabric solutions, which are trickier to clean.
What thicknesses and formats do you offer?
Our wall panels are generally 9 to 12 mm thick, a good compromise between performance on the voice and visual discretion. On formats, everything is made-to-measure: rectangles, squares, hexagons, discs or free cuts, to the exact dimensions of your wall. You can compose a mural from several modules or a scatter of spaced shapes. You also choose the shade and the print. We size the whole thing from your plan to target the useful absorbent surface, without wasting material.
Are they suitable for public buildings (fire safety)?
Yes. Our wall panels are certified EN 13501-1, classification B-s1,d0, the fire-reaction level expected in public-access buildings. The classification report and the absorption data sheet are supplied with the order, ready for the safety commission or the inspection body. Whether it is a restaurant, a public-facing office or a public building, you are covered.
A bare wall sends back almost all the sound it receives. A wall dressed with PET felt captures the voice at first contact and brings the echo down.
The principle we apply to every room, from the meeting office to the restaurant floor.
Your walls, calmer and better looking.
Send us your dimensions or a few photos, and we come back with a layout and a quote within 48 h.
Request my free quote