Stringer Length Calculator

Following calculator help you to determine the length of stair stringers for your construction projects. Simply input total numbers of steps, and press calculate button to know stringer length. Also you can use advance calculation to measure stringer length, switch calculator to advance mode, input your values and click calculate button.

Stringer Length Calculator

Enter the total number of steps or the stringer length to calculate the missing value.







Enter the total number of steps, rise height per step, and run length per step to calculate the advanced stringer length.













The stringer length is the diagonal length of a stair stringer, which supports the treads and risers of a staircase. This measurement is crucial for making sure your stairs are stable and safe.

Stringer Length Calculation Tool

Stringer Length Calculator Guide

Input Action
Total Number of Steps (S) Enter the total number of steps (e.g., 5).
Click Calculate Displays the stringer length in inches (STL).

Stringer Length Formula And Calculation Examples

Calculate stringer length with:

STL=S×14\text{STL} = S \times 14

Variable Description
STL Stringer Length (inches)
S Total Number of Steps

Solved Example 1

Here’s a step-by-step calculation for stringer length.

Step Calculation
Total Number of Steps (S) 5
Multiply by 14 5×14=705 \times 14 = inches

Answer: The stringer length is 70 inches.

Calculation Example 2

See examples of stringer lengths for different numbers of steps.

Example Type Input Values Stringer Length (STL) (in)
Basic Calculation Total Steps: 5 70
Advanced Calculation Total Steps: 8 112

Stair Stringer Size Chart

A quick reference for stringer lengths based on step count.

Total Number of Steps Stringer Length (inches)
3 42
4 56
5 70
6 84
7 98
8 112

Importance

Importance Benefits
Ensures safety Improves stability
Helps with accurate builds Saves time and effort
Provides exact measurements Enhances construction quality

FAQs

How long is a 4-step stringer?

A 4-step stringer is 56 inches long.

What is the length of a stringer made from 2×12 lumber?

The length depends on the step count and specific design needs.

How many stringers are needed for 30-inch stairs?

For 30-inch wide stairs, use 2-3 stringers based on load and design.

Final Words

We hope the Stringer Length Calculator proved helpful for your project. If you have questions or need assistance, please comment below, and we’ll gladly help!

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