How do I square up my hanger points off a structural I-beam?

Use the 3-4-5 rule to establish a right angle. Measure 3 feet along the I-beam edge, 4 feet out perpendicular from it, and adjust your angle until the diagonal distance between those two points measures exactly 5 feet.

['Use the 3-4-5 rule to establish a right angle. Measure 3 feet along the I-beam edge, 4 feet out perpendicular from it, and adjust your angle until the diagonal distance between those two points measures exactly 5 feet.']

Stop if

• Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

Steps

• Use the 3-4-5 rule to establish a right angle. Measure 3 feet along the I-beam edge, 4 feet out perpendicular from it, and adjust your angle until the diagonal distance between those...

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