Eggcrate Core Grille

For extract or air transfer applications, eggcrate core grilles have the highest possible free area of approximately 85%, thus keeping grille sizes to a minimum.

When viewed from any off-centre position this grille has a no-see-through appearance.


The frame is manufactured from 1.6mm thick extruded aluminium alloy section and the aluminium core cell size is 12.5mm x 12.5mm x 12.5mm.

Size and Weight

From 100 x 100 to 1200 x 1200 in 25mm increments.

Grille only 7.8kg/m2, Grille + OBD 15.8kg/m2

Free area approximately 85%

Spec with NBS Chorus
Eggcrate Core Grille product image
Eggcrate Core Grille

Grille range

High Security Grille product image
Security Grille

Security Grille

Stainless steel type complies with Home office recommendations for Anti-ligature applications. For supply, air transfer/extract applications.