Garage Door Geek

Measure the geeks way!

Tools Required:

Spring Gauge OR Calipers & Tape Measure

Measure your springs with a gauge

1. Count twenty coils on your garage door spring and look at the coorisponding wire size on the gauge... its like a slide rule for technicians! 
2. Flip the gauge over and measure the inside diameter in inches like a frigging pro! 
3. Dont forget if your a garage door geek you never measure a spring thats under tension... This would be super in-accurate and lame....geeks always measure the broken one .
4. Read Safety First 

 Measure Your Springs With Calipers and a Tape Measure

Caliper 

• Measure Wire thickness ex.  ".218" would be 218 thousandths of an inch. If you are a geek this is elementry.

Tape: 

• Measure inside diameter with tape standard is 1 3/4" some times 2" rarely 1 5/8" anything else is for a custom door
• Measure Coil Length ex. "28 inches"

Tape Measure Only

• Measure total coil length not including end cones only the coil
• Measure inside diameter with tape standard is 1 3/4" some times 2" rarely 1 5/8" anything else is for a custom door.
• Use the "length of twenty coils" column...with a tape measure... get coorisponding wire size. (chart below)

Example: Common Spring Size For Non-Insulated Garage Door

.218 x 1 3/4" x 28"

Insulated: .225 x 1 3/4" x 28"

Steel back: .234 x 1 3/4" x 32"