Description

Perforated Sheet Round Holes 3mm Holes, 23% Open Area

A 3mm round-hole aluminium perforated sheet with a staggered (60° triangular) pitch at 23% open area. The combination of a fine 3mm aperture and a tighter open area produces a surface that reads as largely solid from normal viewing distances, while still allowing a controlled degree of airflow and sound transmission. At 23%, the aluminium bridges between holes are broad enough to carry loads along the sheet surface without significant distortion.

This specification is a frequent choice for speaker grilles, acoustic panels, and cabinet infill where a refined, almost opaque appearance is required without completely blocking ventilation. The staggered layout distributes perforations evenly and prevents visible straight-line patterns across the face, giving a more uniform texture than an equivalent square-pitch layout at the same open area.