There are over 2000 different perforated patterns that Diamond can produce - all of which fall into one of six basic categories. The available perf patterns and information specific to each category, including formulas for determining the percent open area (%OA) and holes per square inch (HPSI), are contained within their respective section.

PERFORATED  PATTERNS  AVAILABLE

ROUND

60 degree
45 degree
straight

SQUARE

staggered
straight

SLOT
round staggered
round straight
square straight

GEOMETRIC

hexagon

DECORATIVE

R-17 Tile Cane

21ST CENTURY

round orbit
doubled checkered
square orbit
hex orbit