Home > Products > Accordion Doors



Click here for Technical Drawings


Click here for Typical Specifications


Image Gallery


Looking Good

Up to the minute design makes Timberline the best looking acoustic accordion door available. With wider than normal panels and a gentle accordion effect, the result is a neat, clean and uncluttered look.

Many surface finishes are available on Timberline doors including raw MDF for painting on site by others, vinyl laminates, real timer veneers and certain melded fabric finishes. Other surface finishes may be possible, please check with your State Distributor.

Easy to Use

The latest Timberline doors feature easy to grasp handles and a special draw-tight latch to ensure that the door closes fully and achieves the required acoustic seal. Timberline doors hold open easily. Keylocks can be fitted as an optional extra.

Acoustic Performance

"What level of sound reduction do I need?" is a frequently asked question. An acoustician's main aim is to control the sound transmission between rooms to a level where it is no longer distracting even though some sound may still be audible. The performance of an acoustic door depends not only on the sound-rating of the model chosen but on the nature of the building in which it is installed. If there is leakage of sound around the outside of the door, e.g. over a suspended ceiling, this will limit the perceived effectiveness of the door. Therefore choose the Timberline sound-rating you require bearing in mind any limitations the building may impose.

To provide the best options Timberline is available in 3 sound-ratings known as Sound Transmission class (Rw).


Typical Effect (assuming low peripheral leakage)

Rw 28

Conversation may be audible but may not distract. E.g. for childcare centres and quiet meeting rooms

Rw 33

Mutes normal conversation, suitable for primary schools and small meeting rooms.

Rw 38

Normal voices unintelligible. Appropriate for meeting rooms, church halls and classrooms.


A 23 Rw version of the Timberline folding door is available for situation where a lower acoustic performance is acceptable and budgets are limited.

Tough and Durable

Timberline construction is based on strong MDF board, special polymer coextrusion hinges and ball bearing trolleys to ensure Timberline will continue to give service for many years. Should a single panel become damaged, it can be replaced in the field at relatively small cost.