Measure the distance from the top of the closed door to the bottom of the horizontal track.
How many turns on a 12 foot garage door spring.
On average samwise takes his little pony for a ride in the shire 3 times per day.
Generally speaking you will wind torsion springs one full turn per foot of height of the sectional door plus to turn just to keep the cable tight at the top of the lift.
Keep this label in your files or staple it to the wall near your spring system.
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Torsion springs are incredibly popular for garage doors.
Based on the facts if we divide 15 000 by 3 we get samwise garage door spring s life expectancy which is 5 000 days or 13 years and 7 months.
If breakage occurs you can give us this information to produce a replacement spring quickly.
Although extension springs have frequently been chosen by home builders for their low cost torsion springs are gaining popularity.
So if the door is seven feet tall and a standard installation then the design number of turns would be 7 to 7 full turns.
Rules and formulas door weight.
High lift doors rise vertically some times a distance as short as a foot or more sometimes more than half the door height and then the door rides in the horizontal tracks.
In case of doubts on how many times you need to turn the spring contact a technician for guidance.
7 1 2 foot door 7 revolutions 2 30 quarter turns.
This completes a total of seven spring turns adequate for a standard garage door.
Eventually garage door springs do wear out and need to be replaced.
When you count 30 turns you should know that you have completed the remaining five turns.
Many new homes are made with torsion spring garage door systems.
A rule of thumb with springs is that four quarter turns equals a full revolution and the spring needs to be tightened a full revolution for every foot of door height e g.
The formula for determining the number of turns on these springs is based on door height and drum number.
