Sound absorbing plasterboard: Size, advantages, price quotes, common applications

Acoustic gypsum board is a specialized building material designed to absorb sound and reduce echoes in interior spaces. The product has a multi-layer structure including a perforated or grooved gypsum layer, a fiberglass or foam rubber core, and a paper membrane behind.

There are two main standard sizes on the market: 1250x2425mm panels with a thickness of 9mm for recessed ceilings or wall cladding, and 603x603mm panels with a thickness of 9mm for suspended ceiling systems. Both types have a perforation ratio of 16%, a weight of 5,7kg/m² and an NRC sound absorption index of 0,6 according to ASTM C423-17. This means that the material absorbs 60% of the sound energy hitting the surface.

Three outstanding advantages of sound-absorbing plasterboard are effective sound absorption with NRC 0,6, easy to shape and bend with a minimum radius of 1,6m, fire resistance of 180-240 minutes and heat resistance of ~1000°C. Prices range from 300.000-550.000 VND/m² depending on brand and size (updated September 2025).

The material is widely used in civil works such as bedrooms, living rooms, family karaoke rooms. Commercial and industrial works such as offices, restaurants, hotels, cinemas, recording studios also use sound-absorbing plasterboard to improve sound quality and space experience.

What is sound absorbing plasterboard?

Acoustic gypsum board is a specialized building material with a perforated or grooved surface, designed to absorb sound and reduce echoes in interior spaces. The material works by combining several layers of different materials. The holes in the surface allow sound waves to pass through and be absorbed by the material inside.

The product consists of 3 main layers:

1. Back paper layer absorbs the intensity of sound passing through the plate.
2. Core material layer such as fiberglass, foam rubber reduce sound intensity
3. Daub Often perforated or grooved to optimize sound absorption

How many sizes of sound absorbing plasterboard are there?

Gypsum sound absorbing panels come in two main standard sizes: 1250x2425mm and 603x603mm, both 9mm thick.

• Size 1250 x 2425mm with thickness 9mm is a large panel, used for recessed plasterboard ceiling systems or wall cladding, allowing the creation of a continuous, aesthetic surface with few joints.

• Size 603 x 603mm with thickness 9mm are smaller panels, designed for installation in suspended plasterboard ceiling systems, featuring the advantage of easy removal, maintenance, and replacement of individual panels.

Below is a detailed technical specification table of 2 popular gypsum sound-absorbing panel sizes that Kosmos has compiled from many reliable sources:

In addition to the above 2 standard sizes, the construction materials market offers 3 other popular sizes to serve specific design requirements. This diversity helps optimize materials and minimize waste during construction.

1. Gypsum board 1200 × 2400mm: The standard large panel size used by many manufacturers is similar to 1250×2425 mm but in rounding.
2. Gypsum board 600 × 1200mm: Rectangular sound-absorbing plasterboard panels, often used for suspended ceiling systems to create distinct visual effects and divide spaces.
3. Gypsum board 595 × 595mm: This size is designed to fit the standard 600 × 600mm frame system.

What are the advantages of sound absorbing plaster?

Sound absorbing plaster has 3 main advantages: effective sound absorption with NRC index 0,6, easy to style and decorate, good fire resistance of 180 - 240 minutes:

1. Sound absorption, noise reduction effectively with high performance: The sound absorption and noise reduction capabilities of this plasterboard are proven by the NRC sound absorption index of 0,6 (tested according to ASTM C423-17), which means that the material panel is able to absorb 60% of the sound energy that impacts it. This property is especially important in meeting rooms or cinemas to achieve optimal reverberation time.
2. Easy to customize style and decoration: The material allows for flexible shaping, installation and painting without reducing the sound absorption efficiency. Architects can freely create ceiling or wall surfaces in many different styles. In particular, the product can be bent with a minimum radius of 1,6 meters, opening up the possibility of constructing soft and unique curved surfaces.
3. Good fire resistance and insulation: Fire resistance from 180 to 240 minutes (3 – 4 hours) depending on the complete installation system. The material can withstand temperatures up to 1000°C, helping to minimize heat transfer between spaces. This feature contributes to improving fire safety and saving energy for air conditioning.

How much does a gypsum sound absorbing panel cost per square meter?

The price of gypsum sound-absorbing panels ranges from 300.000 to 550.000 VND/m² depending on the type of panel, brand, thickness and accompanying frame system (updated September 2025). Below are some reference price ranges that Kosmos has compiled:

Note: The above prices updated in September 2025 are only for acoustic panels. You need to budget for additional costs for the metal frame system, auxiliary materials and installation labor costs.

In which projects are sound absorbing plasterboard panels practically applied?

Acoustic gypsum board is widely used in two main groups of constructions: civil constructions and industrial commercial constructions. The material effectively solves the sound problem, improving the quality of living and working space experience.

In civil works, this material brings privacy and relaxation that every family desires.

1. Bedroom: Create a quiet, private space.
2. Living room: Reduce echo, improve sound.
3. Karaoke room, home theater room: Good soundproofing does not affect other rooms.

In commercial and industrial environments, materials help increase productivity by creating a quiet environment. For service spaces, acoustic solutions enhance customer satisfaction and experience.

1. Office, meeting room: Reduce noise, increase concentration.
2. Restaurants, hotels, shopping centers: Improve customer experience.
3. Cinemas, theaters, recording studios: Ensures the best sound quality.

Questions about sound absorbing plaster

Besides plasterboard, what other materials are used as sound absorbing panels?

In addition to gypsum board, the following four materials are also used as sound absorbing panels:

1. Nano sound absorbing plastic panels, hollow-structured wave panels
2. Sound-absorbing cotton panels (Polyester, mineral wool, glass wool)
3. Sound absorbing wood panels (perforated, grooved sound absorbing wood)
4. Felt sound absorbing panels.

Nano sound absorbing plastic panels, Lam Wave

Cotton fiber sound absorbing panel (Panel)

Sound absorbing wood panels

Felt fabric sound absorbing panels

To learn more about the advantages and classification of each type of sound-absorbing panel, you can refer to the article: Sound absorbing panels: Advantages, classification, detailed price quotes.

Which sound absorbing plaster brands are reliable in the market?

Three reputable brands of sound-absorbing plaster on the market today are Gyptone, Boral and Knauf. These brands possess advanced technology and provide a variety of high-quality sound-absorbing solutions for many types of projects.

1. Gyptone: Famous international brand with perforated sound-absorbing panels with diverse designs and high aesthetics, widely used in high-end architectural projects.
2. Boral: A major manufacturer offering comprehensive plasterboard solutions, including acoustic products with emphasis on fire resistance and mechanical strength.
3. Knob: Leading brand from Germany, providing acoustic plasterboard ceiling and wall systems with advanced technology.

Address providing quality sound absorbing plaster ceiling?

Kosmos is a distributor of interior and exterior decoration materials in Vietnam with a wide network of agents. Kosmos agents provide a full range of plasterboard from leading brands such as Gyptone, Boral, Knauf sound-absorbing plasterboard, ensuring clear origin according to manufacturer standards. You can access high-quality sound-absorbing plasterboard ceiling and wall solutions.

Furthermore, when contacting Kosmos Dealers, you will not only purchase materials but also receive professional advice on optimal soundproofing solutions for each specific space.

Kosmos warehouse space distributes a variety of materials

Beautiful interior decoration project completed by Kosmos Agent

Acoustic gypsum board is a specialized and effective building material solution to control sound and improve the quality of interior space. If you have any questions about the material or need to receive information about the Dealer in the area, please contact Kosmos at 0932 067 388 for quick support.