Calculating Areas of Solids, Tubing & Structural Members

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Tubing

Area = πR² - πr ² or .785 (D² - d²)
Max Width of Cut = √D² - d²

Area = (Outside W² - Inside W²)

Structurals

Area = lbs./ft. x .294

Solids

Area = W²

Area = L x W

Aera = πr² or .785 x d²

Area = 3.464 x (½W)² or .866 x W²

Area = 3.314 x (½W)² or .829 x W²