Intro to Stair Calculation Part 1 - Simple, Whole Numbers

Stairs are calculated by knowing what two pieces of information?

• Stair Width and Thickness

• Wood Species and Color

• Total Rise and Total Run

• Budget of Project and Timeline

What is the optimum Unit Rise measurement?

• 10 inches

• 7 inches

• 7 feet

• 13 inches

What is the optimum Run Length?

• 10 inches

• 7 inches

• 13 inches

• 10 feet

If the total rise is 70", how many steps should you have?

• 12

• 7

• 10

• 70

You should subtract one riser from your total.

• True

• False

What should you do with the unit rise of the first step on the stringer?

• Add the thickness of the stair tread material.

• Subtract the thickness of the stair tread material.

• Nothing.

• Divide by 7.