Rafter Layout Calculator

ByPushplata Rajput

What is a Rafter Layout Calculator?

A “Rafter Layout Calculator” is a tool used in construction and carpentry to determine the layout and spacing of rafters in a roof structure.

It takes into account the roof’s span and pitch to calculate the rafter length and spacing.

Why Use a Rafter Layout Calculator?

  • Accuracy: Ensures that rafters are properly spaced and aligned in roof construction.
  • Efficiency: Speeds up the planning and layout process for roofing projects.

Rafter Layout Calculator

Use this calculator to determine the layout and spacing of rafters in a roof structure.



How to Use a Rafter Layout Calculator:

  1. Open the calculator webpage.
  2. Enter the roof's span in feet.
  3. Enter the roof's pitch in inches per foot (in 12 format).
  4. Click the "Calculate" button.
  5. The calculator will display the rafter length and spacing.

Example Calculation:

Suppose you have a roof with a span of 20 feet and a pitch of 6 in 12 (a 6-inch rise for every 12 inches of run).

  1. Enter "20" in the "Roof Span (feet)" input field.
  2. Enter "6" in the "Roof Pitch (in 12)" input field.
  3. Click the "Calculate" button.
  4. The calculator will display the following result:

Rafter Length: 22.36 feet
Rafter Spacing: 22.36 feet

Note

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