Perforated Metals

Perforated Metal is formed from a single piece of metal which involves punching holes to form a regular pattern of round, square, rectangular perforations or desired shapes of choice.  Perforated Metal sheets are used as support to Filter Media in various automotive applications, air and liquid filtration, lighting diffusers, decorative and aesthetic applications and as security screens.

The round hole perforation is the most popular type of perforated pattern. We can cut to size to your specific requirements.

Perforated metal is described by the hole size and the pitch. The pitch is the distance from the centre of one hole to the centre of the adjacent holes.

Formula to determine the percentage of open area :

Round Hole -
60° Staggered Centers

( D2 × 90.69 ) / C2 = % Open Area


Square Hole -
Straight or Staggered Centers

( S2 × 100 ) / C2 = % Open Area


Round Hole -
Straight Centers

( D2 × 78.54 ) / C2 = % Open Area


Slotted Hole -
Square End Slot, Straight Centers

( L × W ) / C2 = % Open Area


Round Hole -
45° Staggered Centers

( D2 × 157.08 ) / S2 = % Open Area


Hexagonal Hole -
Staggered

( 100 × D2 ) / S2 = % Open Area


perforated metal hole pattern 1-5
perforated metal hole pattern 6-10
perforated metal hole pattern 11-15
perforated metal hole pattern 16-20
perforated metal hole pattern 21-25