Description

Slotted Perforated Aluminium Sheet – Parallel Pitch – 20.0 x 4.0mm Holes, 40% Open Area

A parallel pitch slotted perforated aluminium sheet with 20.0 x 4.0mm slots at 40% open area. The slot size is the same as the staggered 20 x 4mm product, but the parallel pitch changes the way the pattern reads: instead of a broken, staggered rhythm, the slots align in regular rows to create a cleaner, more directional surface. This gives the sheet a more ordered linear appearance while retaining the same balance of open area and aluminium bridge material.

The parallel 20 x 4mm specification is a strong option for projects where the slot direction needs to line up with surrounding edges, joints, or framing details. Typical uses include ventilation grilles, cabinet and enclosure panels, acoustic liners, ceiling panels, display screens, and decorative aluminium panels where a controlled, repetitive slot layout is part of the visual brief. Because it shares the 40% open area with the staggered version, the choice between the two is mainly visual: staggered pitch gives a more broken texture, while parallel pitch gives a cleaner and more linear finish. Available in 1.2mm and 2.0mm thicknesses, it suits lightweight panels as well as more robust 2.0mm sheet applications.