Steel Project Index / Detailer Tools / Square-up · diagonal check
diagonal · ft-in-sixteenths · out-of-square

Square-up / diagonal check

The frame diagonal from width and height — in decimal inches and the nearest sixteenth — and how far out of square a measured pull is.

Formula & assumptions

Diagonal = √(W² + H²). A rectangle is square when both diagonals match. Enter a measured diagonal for out-of-square. Layout aid.

Verify with project engineer, contract documents, and applicable code/specification. Estimating aid only — not a design tool, not legal advice.

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