Perforated wood acoustic panel fine hole grid

Perforated wood acoustic panels in multi-purpose hall

Micro-Perforated Wood Acoustic Panel E4/4

Micro-perforation reads as solid timber from normal viewing distance · Hidden absorption for design-led interiors
Fire: GB 8624-2012 B1 · E1 formaldehyde

Description

Micro-Perforated Wood Acoustic Panel E4/4

E4/4 is a micro-perforation — 4 mm holes on a 4 mm grid at 0.4 mm effective depth grading. To the eye the surface reads as plain timber; the acoustic function is entirely hidden. It is the discreet solution for heritage-style interiors and executive spaces.

Key features

Micro-perforation reads as solid timber from normal viewing distance
Hidden absorption for design-led interiors
Width 600 / 1200 mm · length 600 / 1200 / 2400 mm · thickness 12 / 15 / 18 mm (custom sizes available)

Material specifications

Property	Value
Hole pattern	E4/4/0.4 micro-perforation
Other models	E32/6, E32/8, E16/6, E16/8; Plummer holes V32/6, V32/8, V16/6, V8/8/0.5
Structure	Substrate + finish + acoustic backing
Width	600 / 1200 mm
Length	600 / 1200 / 2400 mm
Thickness	12 / 15 / 18 mm (custom sizes available)
Substrate	Standard / eco / flame-retardant / moisture-proof / MgO / ceramic-aluminium / A-grade non-combustible board
Finish	Melamine / wood veneer / fireproof veneer / PU paint
Back	Non-woven fabric / acoustic felt

Where it is used

Boardrooms, hotel suites, museums and heritage interiors where the perforation should stay invisible.

Ordering & delivery

Item	Detail
Minimum order quantity	300 m²
Production lead time	15–25 working days from order confirmation
Packaging	6 panels per carton, edge-protected
Container loading	20′ GP ≈ 1,100 m² · 40′ HQ ≈ 2,600 m²
Terms	EXW Shanghai · FOB Shanghai · CIF on request
Payment	30% deposit with order, balance against B/L copy by T/T; L/C at sight on request

Certification & test data

Reaction to fire (CN): GB 8624-2012 — B1 (A-grade non-combustible substrates available)
Formaldehyde: GB 18580-2017 — E1
Core: FSC®-certified MDF / ply substrates available
Sound absorption: ISO 354 reverberation-room measurement; third-octave coefficients published above.
Chain of custody: FSC® CoC (FSC-STD-40-004 V3.1), certified by RINA and held in the name of Shanghai MST Industrial Co., Ltd. — valid to 11 November 2027.

Component test reports are issued to our manufacturing partners rather than to MST. Authorised copies, including laboratory and certificate numbers, are released with every quotation.

Samples

A4 samples of your chosen hole pattern, pitch and finish are despatched free of charge within 7 working days.

Talk to us about your project

Email your drawing, panel schedule or a square-metre count to sales@mstacoustics.com, or send the enquiry form on this page. We reply within one working day with pricing, lead time and freight options. Datasheets, colour charts and installation guides are collected in our technical resources library.

Frequently asked

Is micro-perforation weaker acoustically?
It trades peak absorption for evenness — with a felt backing and cavity it still delivers solid mid-band control.

Does it cost more than E32/6?
Micro-perforation takes longer machining time; request a quote for your exact quantity.

Can it be combined with visible patterns?
Yes — many projects run E32/6 on upper walls and E4/4 at eye level.