Timber-lined atrium with skylights at the new town hall in Bodo, Norway

Product family

proline

Micro-perforated acoustic boards for walls, ceilings and furniture

Large-format acoustic boards in classic and finest micro-perforations, perfect for wall panels, ceiling baffles, ceiling tiles and furniture building.

Finishes

Surfaces that carry the room

American walnut veneer finish on proline acoustic panel — American walnut veneer
Art. finest 548250 | classic 548265

European oak veneer finish on proline acoustic panel — European oak veneer
Art. finest 548249 | classic 548264

Canadian maple veneer finish on proline acoustic panel — Canadian maple veneer
Art. finest 548251

Dijon walnut natural finish on proline acoustic panel — Dijon walnut natural
Art. finest 548257 | classic 548272

Hamilton oak natural finish on proline acoustic panel — Hamilton oak natural
Art. finest 548254 | classic 548269

Bardolino oak natural finish on proline acoustic panel — Bardolino oak natural
Art. finest 548252 | classic 548267

Vicenza oak finish on proline acoustic panel — Vicenza oak
Art. finest 548256 | classic 548271

Lakeland acacia light finish on proline acoustic panel — Lakeland acacia light
Art. finest 548253 | classic 548268

Hard maple champagne finish on proline acoustic panel — Hard maple champagne
Art. finest 548255 | classic 548270

Onyx grey finish on proline acoustic panel — Onyx grey
Art. finest 548261 | classic 548276

Stone grey finish on proline acoustic panel — Stone grey
Art. finest 548260 | classic 548275

Cashmere grey finish on proline acoustic panel — Cashmere grey
Art. finest 548262 | classic 548277

Light grey finish on proline acoustic panel — Light grey
Art. finest 548263 | classic 548278

Paintable finish on proline acoustic panel — Paintable
Art. finest 548259 | classic 548274

Premium white finish on proline acoustic panel — Premium white
Art. finest 548258 | classic 548273

Variants and technical data

Grab your board and find a wave

proline classic

Decorative acoustic board for walls, ceilings and furniture construction. The classic perforation (3/3/1 mm) suits large-format ceiling sails, wall panels and acoustic ceiling as well as cabinetry and furniture.

Dimensions: 2,800 x 1,310 mm (raw), 2,768 x 1,280 mm (usable)
Core board: 19 mm MDF B2 E1, drilled, 100 mm hole-free edge zone
Surfaces: Veneer, CPL
Fire classification: C-s2, d0 according to DIN EN 13501-1 (in composite); limited contribution to fire; others on request
Edges: Industrial saw cut
Mounting: Rails (optional)

Download data sheet (PDF)

Measured absorption

Mounting condition	αw	Class	NRC
50 mm overall build-up, direct mount	0.8	B	0.85
220 mm overall build-up, 150 mm cavity	0.9	A	0.95
420 mm overall build-up, 350 mm cavity	0.95	A	0.9

50 mm overall build-up, direct mount220 mm overall build-up, 150 mm cavity420 mm overall build-up, 350 mm cavity

proline finest

Decorative acoustic board for walls, ceilings and furniture construction. The finest micro-perforation (1.7/2.0/0.5 mm) reads as a near-closed surface at viewing distance.

Dimensions: 2,800 x 1,310 mm (raw), 2,768 x 1,280 mm (usable)
Core board: 19 mm MDF E1 (according to table 8, EN 13986), B-s1, d0 (according to DIN EN 13501-1), drilled with hole-free areas
Surfaces: Veneer, CPL
Fire classification: C-s2, d0 according to DIN EN 13501-1 (in composite); limited contribution to fire; others on request
Edges: Industrial saw cut
Mounting: Rails (optional)

Download data sheet (PDF)

Measured absorption

Mounting condition	αw	Class	NRC
50 mm overall build-up, direct mount	0.8	B	0.85
220 mm overall build-up, 150 mm cavity	0.9	A	0.95
420 mm overall build-up, 350 mm cavity	0.95	A	0.9

50 mm overall build-up, direct mount220 mm overall build-up, 150 mm cavity420 mm overall build-up, 350 mm cavity

Perforation

Now you see it...

Two perforation options. The 0.5 mm finest perforation gives a more subtle effect and is virtually invisible even at arm’s length. The 1 mm holes classic perforation is lower cost and provides a slightly larger open area while remaining discreet.

classic 3 / 3 / 1 mm

Hole diameter: 1 mm
Centre to centre: 3.0 mm square grid
Open surface: 8.7%
Density: 111,111 holes/m²

The visible perforation, and the higher open area of the two. Suits large ceiling sails, wall panels and cabinetry.

finest 1.7 / 2.0 / 0.5 mm

Hole diameter: 0.5 mm
Centre to centre: 1.7 and 2.0 mm, 60° offset
Open surface: 5.77%
Density: 294,118 holes/m²

Reads as a near-closed surface at normal viewing distance. The pattern is directional, so panels must be aligned the same way on assembly, even in plain decors.

Both patterns are shown at 1:1, so what you see here is the size the holes actually are. The notation gives hole spacing across, hole spacing down, then hole diameter. Boards are drilled with a hole-free edge zone, and other patterns are available on request. Figures are from the proline classic and proline finest data sheets.

Acoustic furniture

A cupboard that swallows the bass

Joinery is usually the enemy of good acoustics. A run of cabinet doors is a large, flat, hard surface that reflects almost everything that hits it. Build those doors from proline finest instead and the same run starts working for the room.

What makes it effective is the void that a cabinet already has. A micro-perforated board with a deep air gap behind it becomes a resonant absorber, and the deeper the gap the lower the frequencies it reaches. Measured over a 400 mm cavity, the furniture board returns an absorption coefficient of 0.70 at 100 Hz and 0.71 at 200 Hz, giving α_w 0.75 and absorber class C.

Low frequencies are the hard part of any acoustic scheme. Thin surface treatments barely touch them, and dedicated bass traps cost floor area. A wall of storage that was going in anyway can do that work instead, while still reading as plain joinery.

The board is decorative on both sides, so the inside of the door is finished too. Standard size is 2,800 x 1,310 mm in 19 mm MDF, with veneer or CPL surfaces.

proline finest furniture board data sheet

Instrument lockers in micro-perforated timber lining a school corridor — Instrument storage at the Music School in Ventspils. A full wall of lockers, working as absorption rather than against it.

proline finest furniture board used as a cabinet door, micro-perforated on the face, shown open on its hinges — The perforated face carries straight to the edge, so a door reads as solid timber until you are close enough to see the holes.

Installation

See it installed

Documents

Plan with real data

CAD .dwg files and technical drawings are available on request. Contact us

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Tell us your area in square metres and we will come back with a tailored quotation, usually within one working day.

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New Town Hall Bodø: acoustic panelling detail