Common Rafter Length Calculator

What is a Common Rafter Length Calculator?

A Common Rafter Length Calculator is a tool that estimates the length of common rafters used in roof construction.

It considers two essential factors: the roof span (the horizontal distance between the eaves and the ridge) and the roof pitch (the slope of the roof).

Why Use a Common Rafter Length Calculator?

A Common Rafter Length Calculator is valuable for the following reasons:

1. Accuracy: It provides an accurate estimation of the rafter length, which is crucial for planning and purchasing materials for a roofing project.
2. Time-Saving: It saves time by quickly determining the rafter length instead of manual calculations.
3. Avoids Mistakes: It helps prevent errors in rafter length, which can lead to wasted materials and costly modifications.

How to Use a Common Rafter Length Calculator:

1. Open the calculator webpage.
2. Enter the roof span in feet in the "Roof Span" input field. The roof span is the horizontal distance between the eaves and the ridge.
3. Enter the roof pitch as a fraction (e.g., 4/12 for a 4-in-12 pitch) in the "Roof Pitch" input field. The roof pitch indicates the slope of the roof.
4. Click the "Calculate Rafter Length" button.
5. The calculator will display the estimated rafter length in feet.

Example Calculation:

Suppose you have a roof with a span of 24 feet and a pitch of 6/12.

You want to calculate the length of a common rafter for this roof.

1. Enter "24" in the "Roof Span" input field.
2. Enter "6/12" in the "Roof Pitch" input field.
3. Click "Calculate Rafter Length."
4. The calculator will display the estimated rafter length 24.02 feet.

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