Manufactured in India, supplied in Kolkata
Wood wool acoustic panels in Kolkata
We manufacture wood wool acoustic panels at our own plant at Palwal in Haryana, India, and supply them into Kolkata. Kolkata has the oldest building stock we work with regularly.
- Panel size
- 1200 x 600 mm
- Thickness
- 20 mm
- Density
- 400 kg per cubic metre
- NRC
- 0.30
- Test standards
- ASTM C-423 and EN ISO 354
- Lead time
- 4 to 7 working days for standard sizes
- Minimum order
- 500 sq ft, about 46 sq m
- ASTM C-423 and EN ISO 354
- Made at our own plant, Palwal, Haryana, India
- One batch across the order, no blending between runs
We make this ourselves and ship it to you. No local branch, no borrowed certifications, no dealer margin. One batch across the whole order, and an honest answer when the product is wrong for the problem.
01 / Start here
The product, described honestly, for a Kolkata brief
Wood fibre bound into a rigid board with an open texture. Robust, paintable and used where the surface takes knocks, which is why it ends up in schools, sports halls and plant rooms.
Work reaching us from Kolkata is mostly old buildings and conversions, offices, clubs and restaurants, schools, clinics, auditoriums.
Older masonry buildings and newer RC frame apartments with hard floors, in very dense neighbourhoods with heavy monsoon damp.
- Direct fix Mechanically fixed to the soffit or wall. Durable and simple.
- On a cavity Mounted on battens with an air gap, which is where the low mid performance comes from.
- With a porous backing Board over mineral backing where the room needs more than the board alone gives.
- What it will not do At 20 mm it is a mid and high frequency absorber, not a bass solution, and painting it heavily will close the surface and reduce what it does. If a room needs low frequency control, depth or a cavity has to come from somewhere.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for wood wool panels are on the main product page. This page covers what that means for a project in Kolkata.
02 / The numbers
Published specification, identical wherever we ship it
We publish one data sheet for every market. If a supplier quotes you a different figure for the same product in a different city, one of the two numbers is wrong.
- Natural20 mm. Plant rooms, back of house, industrial
- Painted20 mm. Classrooms, halls, visible ceilings
| Panel size | 1200 x 600 mm |
|---|---|
| Thickness | 20 mm |
| Density | 400 kg per cubic metre |
| NRC | 0.30 |
| Test standards | ASTM C-423 and EN ISO 354 |
| Surface burning | Class A to ASTM E84 |
Where a consultant is already engaged on a Kolkata project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
03 / In this market
What the buildings in Kolkata do to the specification
- Humid most of the year
PET felt does not hold moisture or feed mould, which matters where mineral products sag within a couple of seasons.
- Tall rooms, hard plaster
High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
- Timber floors between floors
Footfall travels straight down through the joists. A resilient layer under the new finish does more than anything applied to the ceiling below.
- The structure is staying
Conversions here keep the original fabric, so the work has to be internal, shallow and ideally reversible.
- Assembly and performance rooms
Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
- School and campus buildings
Long established schools and colleges in masonry with high ceilings and very large class sizes.
For a Kolkata practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
04 / Durability
Why the climate in Kolkata changes the material, not the target
Kolkata is warm and humid through most of the year, with a long wet season, and that narrows the sensible material list before acoustics is even discussed.
Humidity is the deciding factor. PET felt does not absorb moisture, shed fibre or feed mould, which is why it outlasts fabric-wrapped mineral wool in this climate. Wood wool and timber need a ventilated cavity behind them.
The risk we design against here is mould, sagging fabric finishes and swelling in timber.
Designers get colour, pattern and CNC options with the absorption figure attached to each. See how we work with interior designers.
05 / Route to site
What the route into Kolkata actually looks like
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | three days |
| Dispatch | 2 to 4 working days |
| To site | three days |
| Packing | Palletised flat, edge protected. Boards are rigid but the edges chip, so they travel protected. |
| Lead time | 4 to 7 working days for standard sizes. |
Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
By road from Palwal, roughly fourteen hundred kilometres, normally three days on a dedicated truck.
500 sq ft, about 46 sq m.
| Any finish | 500 sq ft, about 46 sq m |
|---|
A panel is 1200 x 600 mm, which is 0.72 sq m or about 7.75 sq ft, so the minimum is roughly 65 panels.
06 / Straight talk
What we will tell you that a reseller will not
-
The wrong product for the problem
At 20 mm it is a mid and high frequency absorber, not a bass solution, and painting it heavily will close the surface and reduce what it does. If a room needs low frequency control, depth or a cavity has to come from somewhere.
-
Coverage bought instead of a target
Lining every surface is a purchase, not a result. We would rather calculate the area against a reverberation target and sell you less of it.
-
Suppliers who imply a Kolkata presence
Ask any supplier where the material is made and who carries the warranty. We make it at Palwal in Haryana and we say so on every page, including this one.
Kolkata: questions we are actually asked
Are these wood wool acoustic panels made in Kolkata?
No, and we will not say otherwise. We manufacture at our own plant at Palwal in Haryana, India, and supply into Kolkata as the manufacturer rather than through a dealer. Kolkata has the oldest building stock we work with regularly. You buy at factory prices with one consistent batch across the order.
What changes the specification on a Kolkata job?
High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it. Footfall travels straight down through the joists. A resilient layer under the new finish does more than anything applied to the ceiling below. Those two things move the build-up far more than the panel figure does.
Is this the right material for Kolkata conditions?
Kolkata is warm and humid through most of the year, with a long wet season. Humidity is the deciding factor. PET felt does not absorb moisture, shed fibre or feed mould, which is why it outlasts fabric-wrapped mineral wool in this climate. Wood wool and timber need a ventilated cavity behind them. The failure we design against here is mould, sagging fabric finishes and swelling in timber.
How does an order actually travel to Kolkata?
made at: Our own plant, Palwal, Haryana, reaches site in: three days, dispatch: 2 to 4 working days. Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
What will wood wool acoustic panels not do?
At 20 mm it is a mid and high frequency absorber, not a bass solution, and painting it heavily will close the surface and reduce what it does. If a room needs low frequency control, depth or a cavity has to come from somewhere.
How is the order packed and what is the minimum?
500 sq ft, about 46 sq m. Any finish, 500 sq ft, about 46 sq m. A panel is 1200 x 600 mm, which is 0.72 sq m or about 7.75 sq ft, so the minimum is roughly 65 panels. Palletised flat, edge protected. Boards are rigid but the edges chip, so they travel protected.
Next step
Tell us the room, we will tell you the build-up
We quote from drawings, not from a square foot rate. Send a plan and the section through the critical wall or ceiling and you will get something you can actually build from.