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Side 1 In
Side 2 In


How to Lay Out a Square or Rectangle

To setout a square or rectangle, make sure the diagonal is the correct length for the side lengths.
Enter 2 sides and hit Calculate to re-draw with correct diagonal. Enter inches as decimal or fraction with space or slash. eg: 120.75 or 120 3/4 or 120 3 4

In the diagram, if the diagonal is
for side lengths of and the has 90° corners (right angles) and is 'Square'.

Side 1

Side 2







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Create PDF files to print diagrams on current page. Print large images over multiple pages Printing to Scale Help and Plan Printing.

Slider Controls To fine tune Slider Controls click to select and use (cursor) keyboard keys.

Use your iPad or Android Tablet On-Site Your iPhone or Android is a valuable On-Site tool!
Lay your device on an angled surface (roof ?) to directly measure angles and automatically calculate Roofing and Pitch Angle Apps.

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ALWAYS CHECK WITH YOUR LOCAL BUILDING AUTHORITY BEFORE LAYING OUT OR BUILDING ANYTHING
AND FOLLOW ALL LOCAL CODES. VERIFY ALL DIMENSIONS AND ANGLES BEFORE CONSTRUCTION.
All calculators on this site are GEOMETRIC only. Check local regulations for sizes, spacings and all engineering requirements.


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