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Key-Lock Concealed Ceiling System

Key-Lock Concealed Ceiling System

Our KEY-LOCK Concealed Ceiling System is designed to produce a high-quality structure for a flush or featured finish to your plasterboard ceiling. You can direct-fix or fully suspend your KEY-LOCK ceiling; use the tabs above to view both options.
Our KEY-LOCK® Concealed Suspended Ceiling System enables the mixing of primary (Top Cross Rail) and secondary components (Furring Channel) in order to increase spans and suspension fixing points and maximise structural design.

The components within the system have been specially designed so that they simply snap into sections, without mechanical tools being required. This offers Contractors an easy to install ceiling system and speeds up time on site.

The Top Cross Rail and Furring Channel sections have rolled edges to make them safer to handle and with our state-of-the-art manufacturing processes, we can also produce these profiles in custom lengths and radiusses.

When you require a suspension depth of more than 200mm, a fully suspended KEY-LOCK® ceiling system is the way to go. It can also be used in fire-rated and non-fire rated situations, and designed to achieve both acoustic and seismic requirements.

Since it’s intial introduction over 50 years ago, the Rondo KEY-LOCK® Concealed Suspended Ceiling System has been used around the world in some remarkable projects including the famous “sky ceilings” at Venetian Casino in Macau.


Primary and secondary profiles available in custom lengths or radiusses.
Able to be engineered designed for external use, e.g. Soffits.
Base Material Engineered from G2 BlueScope Steel for Strength and reliability.
Rondo range of ceilings can interlock with each other in the same ceiling area, providing specialised ceilings after partitioning


Flush plasterboard ceilings
Direct Fix or Fully Suspended ceiling applications
Curved ceilings
Non-Fire Rated systems
Fire Rated systems
Acoustic Design available
Seismic Design available


Key-lock installation guide
Key-lock concealed ceiling system

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