Open Area Calculator

A Convenient Planning Tool for Perforated Tubular Design

TPM has the flexibility to manufacture tubing according to your specific needs.

When exploring various design options, use this handy calculator to consider whether a given configuration meets your Open Area requirements. Simply select your desired hole pattern, hole center, and hole diameter. The calculator will instantly respond with the estimated Open Area*.

OPEN AREA CALCULATOR
TIP: "Hole Centers" must be larger than the "Hole Diameter"
Hole Pattern :	Inline 60° Staggered
Hole Diameter :	1/32 1/16 3/32 1/8 5/32 3/16 7/32 1/4 9/32 5/16 11/32 3/8 13/32 7/16 15/32 1/2 17/32 9/16 19/32 5/8 21/32 11/16 23/32 3/4 25/32 13/16 27/32 7/8 29/32 15/16 31/32 1 in.
Hole Centers :	1/32 1/16 3/32 1/8 5/32 3/16 7/32 1/4 9/32 5/16 11/32 3/8 13/32 7/16 15/32 1/2 17/32 9/16 19/32 5/8 21/32 11/16 23/32 3/4 25/32 13/16 27/32 7/8 29/32 15/16 31/32 1 in.
Estimated Open Area* :

*Please note that Open Area calculations are estimates to be used for planning purposes only. Although based on generally accepted industry formulas, these estimates are not intended to replace your engineering procedures and TPM makes no guarantee of accuracy.