How to Find the Correct Angle for Your Truss Hangers

For up and down angled truss hangers the angle (or roof pitch) is one of the most important measurements that you need. It can be difficult to determine the correct angle that you need, but we are here to help! Read this article to ensure you find the correct angle for your application.

Method 1: Measuring the Slope of the Rafters

What You Will Need:

• Tape Measure
• Level (12-inches or longer)
• Pencil

Steps:

1. Locate an easily accessible rafter
2. Hold the level horizontally to the rafter. Meeting at the base (or resting point) of the rafter.
3. Measure 12 inches along the level (this is your run).
4. You can use this number (rise/run) to find the angle of truss hangers that you need.

If you need the angle in degrees, here is our simple sheet to help convert your measurement.

Method 2: Using a digital level

This is the easiest and typically much more accurate method. All you need is a digital level, there are some apps that can do this. Just place the level against the rafter and record your measurement.

Method 3: Using a Framing Square

A framing square can simplify the process. This is the most common practice used by builders and contractors.

 Steps:

• Place the square so one leg runs horizontally (12 inches).
• Let the vertical leg touch the roof surface.
• Read the rise directly where the roof meets the vertical leg.

Pro Tips:

• Always measure twice to ensure accuracy
• To be extra thorough, use multiple methods and make sure the measurement matches.
• Use a longer level (24") for better precision