Ceiling Rafts | Hook On


SAS600 offers a variety of applications from the purely aesthetic to high performance acoustics with service integration.

The rafts and modules are available in a range of curved, flat or angled profiles as standard. Bespoke designs can be achieved to realise highly aspirational interiors.

The flexibility of SAS600 rafts and modules makes them ideal for both new build and retrofit acoustic solutions.

System features


SAS600 is an acoustic raft or module that is directly suspended from a flat structural soffit or in coffers. The system facilitates free air movement to structural slabs to benefit from natural thermal mass cooling.

  • Available in curved, flat or angled profiles as standard
  • Highly durable, easy and inexpensive maintenance
  • Prefabricated off-site with survive apertures for quick, clean and easy installation
  • Integrates with lighting and other services
  • Natural lighting effects can be achieved through intelligent lighting options
  • Offers acoustic performance tailored to interior requirements (absorptive and reflective)
  • Reduced capital costs through standardised industry components


Suspension System

  • Threaded Rod with suspension channel


System Weight

System weight is entirely dependent on module dimensions and acoustic treatment.


Standard Module Lengths (mm)

  • Up to 3000mm


Standard Module widths (mm)

  • Up to 1200mm


Standard Finish

  • Coating – Polyester powder coat
  • Colour – RAL 9010 (Pure White)

Special & Non-standard Finishes

  • Available in full range of standard RAL colours
  • Anti-Microbial Coating

Other specialist powder coat finishes are available on request. For more information on non-standard finishes, please contact our technical services team.


Standard Raft Shape

  • Square
  • Rectangle

Bespoke baffle shapes are possible. If your specification requires complex shapes, please contact our technical design team for more information.

Flat Designs

Flat SAS600 rafts and modules provide the ideal solution to many environments. Luminaires can be integrated within the raft or mounted independently between rafts.

Curved Designs

Curved SAS600 rafts and modules allow a larger acoustic area to be incorporated into the design. The raft/module has an integrated central luminaire with acoustic pads to the larger outer surface area.

Bespoke Designs

SAS600 rafts and modules can be designed and tailored to any project or environment. They can incorporate service ducts, removable panels for partitioning or any other specified services including fire detection and control systems.
The rafts and modules are not limited to the flat or curved design. Bespoke designs can be angular, radial or waveform.



SAS600 modules can be supplied with any standard SAS perforation pattern.


Acoustic Treatment

  • Acoustic pad as standard

(18mm deep, 80Kg density mineral-wool pad with black tissue face).

Other acoustic treatments are available, depending on project requirement. Please contact our technical department for more information.



SAS600 rafts and modules can be manufactured with integrated, traditional and fluorescent LED lighting and other M&E services. 

M&E Integration

As with traditional suspended ceilings there is a need to integrate M&E services within the ceiling.

Luminaires and up-lighters are some of the different intelligent lighting option available to create natural lighting effects.

SAS600 allows services to be integrated into the design while still allowing natural mass cooling. Air handling, cabling, PA, fire detection and control systems are some of the services that can be designed and installed within SAS600.

Integrating Partitioning

Environments require a degree of flexibility for partitioning. SAS600 can be designed with removable panels in between modules to allow full height partitioning to be installed where required.

By installing full height partitioning to the buildings soffit, acoustic attenuation between the two spaces is reduced.


Additional System Information

Cross Ventilation

Ceiling mounted acoustic rafts provide acoustic absorption whilst allowing the concrete soffit to be fully exposed for energy-efficient natural cross ventilation cooling.

Working in conjunction with a Suspended Ceiling

Rafts and modules provide high levels of acoustic absorption. For demanding environments they can be installed in conjunction with a suspended metal ceiling.

School Requirements

Within schools it is necessary to meet the requirements of BB93 (Acoustic Design of Schools) while balancing the requirements of BB101 (Ventilation of School Buildings).

SAS600 provides acoustic absorption under BB93 while allowing sustainable thermal mass cooling to take place.

System drawings

SAS600 - Drawings PDF

SAS600 - Drawings PDF


SAS600 - Drawings CAD

SAS600 - Drawings CAD




Raft Acoustic Statements

Raft Acoustic Statements


SAS600 Projects

  • Heathrow Airport, Terminal 2B, Phase 2

  • Public Records Office of Northern Ireland

  • Masdar Institute of Science and Technology, Abu Dhabi

  • Gatwick Airport, South Terminal