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*.

TIP: "Hole Centers" must be larger than the "Hole Diameter"

Hole Pattern :

Inline 60° Staggered

Hole Diameter :

Hole Centers :

Estimated Open Area* :