Geometry - Stair Construction Math

Geometry is the branch of mathematics used to measure a wide variety of objects, including triangles, squares, rectangles and circles. If you have worked in construction as long as I have, you definitely ran into at least one situation that required a geometric formula to aid you, in the construction process of at least one building.

Think of it like this, most of the rooms in your house, office, shopping malls and other buildings are rectanglar. Each one of the corners of these rooms usually has a 90° angle and definitely fits into our description of geometry.

One of the best formulas I've ever used as a carpenter, stair builder and even as a contractor, was the Pythagorean Theorem. Remember, most of the buildings constructed today are created from squares, rectangles and triangles.

The Pythagorean Theorem can be used to figure out the lengths of roof rafters, stair stringers and can even be used to square buildings.

I can't remember one time I ever needed to use algebra, calculus or statistical probability, when building a house, but geometry is a must and any stair builder or house framing carpenter should understand that, "A squared plus B squared equals C squared."

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