1. What is Garage Door Torsion Spring Torque?

The torsion spring torque calculation determines the twisting force needed to properly balance a garage door. This ensures smooth operation and prevents premature wear on the door mechanism.

2. How Does the Calculator Work?

The calculator uses the torsion spring formula:

Where:

• \( Torque \) — Twisting force (N·m)
• \( Door\ Weight \) — Total weight of the garage door (N)
• \( Drum\ Radius \) — Radius of the cable drum (m)

Explanation: The torque required is directly proportional to both the door weight and the drum radius.

3. Importance of Proper Torque Calculation

Details: Correct torque calculation is essential for garage door safety and longevity. Too little torque won't properly balance the door, while too much can damage components.

4. Using the Calculator

Tips: Measure the door weight accurately (in Newtons) and the drum radius (in meters). For pounds, convert to Newtons by multiplying by 4.448.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure door weight?
A: Use a bathroom scale under the door when it's disconnected from the opener, or consult manufacturer specifications.

Q2: What's a typical drum radius?
A: Standard residential garage doors typically have drum radii between 1.5-2.5 inches (0.038-0.064 m).

Q3: What if my door has two springs?
A: Divide the total required torque by two when using two springs.

Q4: How does door height affect torque?
A: Door height affects the number of turns needed but not the torque calculation itself.

Q5: When should I replace torsion springs?
A: When they show signs of wear, rust, or when the door becomes difficult to open manually.