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SMACNA and NEW PRODUCTS

While SMACNA does not evaluate or endorse any proprietary products, the encourage the development of new HVAC products and technology, and set guidelines and standards for products to meet. While SMACNA does not evaluate or endorse any proprietary products, the encourage the development of new HVAC products and technology, and set guidelines and standards for products to meet.

  • Dura Flange is constructed of 18 and 20 gauge material. All of our Flanges have a profile similar to that of the , as referenced in SMACNA 1995 edition, rendering it equivalent to SMACNA J & K Reinforcement Rating.


SizesGaugeType of Flange
6" - 40" 20Ga. Round
53" - & above 18Ga. Round
All 18Ga. Oval

Dura Flange has been tested from 6’’ Negative W.G. to 10’’ Positive W.G. with virtually no leakage of collapsing.

Single Wall

Single Wall
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Double Wall

Double Wall
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Our associations:

SMACNA
SPIDA
Sheet Metal Workers

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