Perforated Metal Open Area Percentage Calculator

Round 60 Degree Staggered Centers
D² x 90.69 / C² = Open Area %

Round 45 Degree Staggered Centers
D² x 78.54 / C² = Open Area %

Round Straight Centers
D² x 78.54 / C² = Open Area %
Round 60 Degree Staggered Centers
D² x 90.69 / C² = Open Area %
Round 45 Degree Staggered Centers
D² x 78.54 / C² = Open Area %
Round Straight Centers
D² x 78.54 / C² = Open Area %