Special perforation · Geometric

Pattern 131

Diamonds, crosses, quartered fields, banded grids and checkers, all built from straight edges. This is the largest group in the range by a wide margin, and it carries three of the round hole sizes rather than one.

Because the figures are square and cross based, they meet at the panel joint. Laid as a field the design carries across the whole ceiling; rotated or mirrored it breaks into blocks. That is the practical difference from a radial pattern, which always stops at the edge of its own tile. Where geometric patterns suit.

Specifying pattern 131

Name it by its number. These patterns have no names in the catalog, and the number is the only identifier that will match what we hold. Give the panel size and, where the pattern offers more than one, the hole diameter you want it run at.

Special perforation is a patterned face, not a performance specification. Where the acoustic figure is what matters, work from the uniform range, which publishes an open-area percentage for every pattern.