Rectangle Diagonal / Squareness

Diagonal from width × height, or the difference between two measured diagonals.

Construction & Trades

Diagonal from width × height, or the difference between two measured diagonals.

App id: GEOM-04. Reference version 1.0.

How to fill it

Fill the inputs. The tool shows the outputs.

On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.

Formula

D = √(W² + H²)

Inputs

Name	Unit
Width (optional)	`ft`
Height (optional)	`ft`
Diagonal A (optional)	`in`
Diagonal B (optional)	`in`

Outputs

Name	Unit
Diagonal (hero result)	`ft`
Diagonal difference	`in`
Relative difference	`%`

Diagnose

Observations are context. They do not pass or fail a structure. See Diagnose.

When	Observation	Severity
`rel > 0.005`	Diagonals do not match	caution

Provenance

No universal squareness tolerance. Application decides how close is close enough.