How To Size Garage Door Springs

Garage door springs play a crucial role in ensuring the smooth and efficient operation of your garage door. Properly sized springs are essential for the door to function correctly, prevent accidents, and extend its lifespan. This guide will provide you with a comprehensive understanding of how to size garage door springs effectively.

Determining Spring Type and Size

The first step in sizing garage door springs is to determine the type and size you need. There are two main types of garage door springs: torsion springs and extension springs. Torsion springs are mounted above the door and provide tension to counterbalance the weight of the door. Extension springs are installed parallel to the tracks on either side of the door and stretch as the door opens.

The size of the springs is determined by the weight of the garage door and the distance between the spring mounting points. To determine the spring size, you need to calculate the door weight by multiplying its width, height, and material thickness. The distance between the spring mounting points is measured from the center of one spring attachment point to the center of the other.

Once you have determined the door weight and mounting distance, consult a spring sizing chart to find the appropriate spring size. Spring sizing charts can be found online or in garage door hardware catalogs.

Spring Tension Calculation

After selecting the spring size, you need to calculate the correct spring tension. Spring tension is measured in pounds and determines how much force the spring exerts when stretched or compressed. The correct spring tension is crucial for proper door balance and operation.

To calculate the spring tension, you need to use the following formula:

Spring Tension = 2 x Door Weight / Number of Springs

For example, if your garage door weighs 150 pounds and you are using two springs, the spring tension would be 2 x 150 / 2 = 150 pounds.

Spring Installation and Adjustment

Once you have sized and calculated the spring tension, the springs can be installed. It is recommended to consult a qualified garage door technician for spring installation, as improper installation can be dangerous.

After installation, the springs may need to be adjusted to ensure proper door balance. If the door opens or closes too quickly, the springs may need to be tightened or loosened. Use a spring tension gauge to measure the tension and adjust accordingly.

Safety Precautions

Garage door springs are under immense tension and can be dangerous if handled improperly. Always follow these safety precautions when working with springs:

Wear safety gear, including gloves and eye protection.
Never attempt to remove or adjust springs without proper training.
Use caution when working near springs, as they can snap suddenly.
If you are not comfortable working with springs, contact a qualified garage door technician.

Conclusion

Properly sizing garage door springs is essential for the safe and efficient operation of your garage door. By understanding spring types, calculating spring tension, and following safety precautions, you can ensure that your garage door springs are properly maintained and last for many years to come.