Typical Ducted System Layout

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Types of Ducted Grilles

Round Grille         Linear Slot             Linear Bar Grille

4- Way Grille       Double Deflector Grille    Jet Blowers

Bevel Face           Floor Register        Return Air Egg crate Grille

How to choose right Grille ?

For residential applications round type or 4 -way are common .
For higher ceilings 4-way grills are multi directional and have louvres to aim air in downwards direction.

For a more designer look Linear bar and Linear slot can be used.

In Commercial applications such as offices bevel face and round jet type are generally used.