Products
Fence Systems
	Galvanized Steel Security Fence
	Galvanized Steel Louver Fence
	Galvanized Steel Picket Fence
	Aluminum Fence System
	Aluminum Fixed Louver Fence
	Aluminum Picket Fence System
	Perforated Aluminum Fence
	Welded Wire Fence
Trash Enclosures
	Trash Enclosure Gates
Equipment Enclosures
	Equipment Enclosure Gates
Steel & Aluminum Security Gates
	Swing Gates
	V-Wheel Roller Gates
	Cantilever Gates
Railings
	Steel Railings System
	Aluminum Railings
	Perforated Metal Railings
Sunshades
	Aluminum Sunshades
	Louver Sunshades
	Perforated Metal Sunshades
Grilles & Screens
	Architectural Grilles
	Architectural Screens
Louvers
Perforated
	Perforated Metal
	Perforated Plastic
Custom Fabrication
Window Guards
Bar Grating
Expanded Metal
Safety Grating
Wire Cloth

Open Air Calculator

Please use numbers in decimal format. Use the conversion table for fractions.

Round - 60° Staggered Center

	- Hole Diameter ( D ) - Center ( C ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )



Round - Straight Center
	- Hole Diameter ( D ) - Center ( C ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Square - Straight or 45° Staggered Center
	- Hole Diameter ( D ) - Center ( C ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Round End Slot - Staggered Center
	- Width of Slot ( W ) - Length of Slot ( L ) - Side Center ( B ) - End Center ( A ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Round End Slot - Straight Center
	- Width of Slot ( W ) - Length of Slot ( L ) - Side Center ( B ) - End Center ( A ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Square End Slot - Staggered or Straight Centers
	- Width of Slot ( W ) - Length of Slot ( L ) - Side Center ( B ) - End Center ( A ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Hexagon
	- Hole Diameter ( D ) - Center ( C ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )

Round 45° Staggered Center
	- Hole Diameter ( D ) - Spacing ( S ) - Open Area ( OA ) - Holes per Square Inch ( HPSI )