Grilles

Linear Bar Grilles

Continuous slot diffusers for perimeter and floor applications.

Linear bar grilles consist of a series of parallel aluminium blades within an extruded aluminium frame, designed to deliver air in a flat, horizontal pattern — making them ideal for perimeter applications where air is supplied along the base of a curtain wall or window to counteract radiant heat.

They are available in a wide range of blade spacings, depths, and angles to control throw pattern and velocity. Floor-mounted linear bar grilles are commonly used in underfloor air distribution systems or as perimeter heating/cooling registers beneath floor-to-ceiling glazing.

The long, slim profile of linear bar grilles makes them a contemporary design choice for modern commercial and residential interiors, particularly where ceiling-mounted grilles would interrupt an otherwise unbroken ceiling plane.

Gallery

Installation Photos

Applications

Common Installations

Perimeter Heating Under Glazing

Counters cold downdraft and condensation from floor-to-ceiling windows.

Underfloor Air Distribution

Flush floor-mount for raised floor plenum supply systems.

Stairwells & Lift Lobbies

Continuous linear grilles provide subtle, even airflow in transition spaces.

Retail & Commercial Lobbies

Concealed within floor or wall reveals for a seamless appearance.

Diamond Air Solutions

Ready to install a linear bar grille?

Our team handles everything from design and supply to installation and commissioning across Greater Sydney.

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