Rafter Length Calculator
Calculate rafter length based on roof pitch
Rafter Length Calculator
Horizontal distance from outside wall to ridge center
Rise in inches
Typically 12 inches
Current Pitch: 6:12
Common pitches: 4:12 (low), 6:12 (medium), 8:12 (steep), 12:12 (45°)
Rafter Measurements
Rafter Length
13.42 ft
Rise (vertical)
6.00 ft
Roof Angle
26.6°
Plumb Cut
63.4°
Seat Cut
26.6°
Calculation Breakdown:
• Roof pitch: 6:12
• Horizontal run: 12 ft
• Rise: (6 ÷ 12) × 12 = 6.00 ft
• Rafter length: √(12² + 6.00²) = 13.42 ft
• Roof angle: arctan(6.00 ÷ 12) = 26.6°
Note: Add extra length for overhang if needed
💡 Pro Tip:
This calculation gives you the rafter length from the ridge to the outside wall. Don't forget to add extra length for eave overhang (typically 12-24 inches). Always cut one test rafter first to verify measurements before cutting all rafters.
About Rafter Length Calculator
This section will contain detailed, SEO-friendly content about the Rafter Length Calculator.
In the future, this content will be managed through a headless CMS, allowing you to:
- Add detailed explanations about how to use this tool
- Include examples and use cases
- Provide tips and best practices
- Add FAQs and troubleshooting guides
- Update content without touching the code
How to Use
Step-by-step instructions for using the Rafter Length Calculator will appear here. This content will be fully customizable through the admin panel.
Features
Key features and benefits of this tool will be listed here. All content is editable via the CMS.