How many springs should a double garage door have?

As a rule of thumb, a single garage door takes one torsion spring. A double-wide garage door takes two springs. However, if you have an exceptionally heavy single door, you may need two torsion springs. It is easy to tell whether you have one or two springs.Click to see full answer. In this way, should you replace both garage door springs at the same time?We normally recommend replacing both torsion springs because they normally wear at the same rate, and they usually break within six months of each other. They wear out like car tires, only you can’t tell from looking at them when they are ready to break.Similarly, how do I know what size garage door spring I need? Easy as 1, 2, 3, 4. Look at the end of the spring to determine the wind direction. Measure the length, in inches, of ten or twenty coil of the spring that needs to be replaced. For torsion springs, measure the inside diameter of the 1/16” of an inch. Measure the overall length of the spring to the nearest quarter inch. Besides, how many turns on a garage door spring? Tighten New Springs 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. 7-1/2 foot door = 7 revolutions +2 (30 quarter turns).What is the average life of a garage door spring?The average spring life is 7-9 years, assuming 10,000 cycles at 4 cycles a day. However, with the garage door being used as the front door more and more, increasing the daily cycles, springs may last only 4-6 years.

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