If you have a sectional double car garage door a 1 2 horsepower motor should be sufficient but a higher power model will operate with less effort and less wear and tear on the motor.
What size spring for a 2 car garage door.
Springs in general last about 10 14 years or 15 20 thousand.
On a single car door two people can lower the door onto the scale two car doors will require come alongs to lower the door one on each side.
How do i determine torsion spring size for new garage door assuming that i do not have the original torsion spring for information like spring length inside diameters wire size or part numbers.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
When replacing garage door springs we always weigh the garage door and figure the ippt to ensure we.
Many 16 x 7 garage doors will be designed with a pair of single 8 foot garage door bays separated by a central post or column.
Torsion spring inside diameter and overall length in many cases the inside diameter of the torsion spring will be indicated on the stationary cone in between the two springs at the midpoint of the door.
For a 7 foot tall garage door you should put 29 quarter turns on each spring.
Many homeowners have two cars and need garage space to shelter them both.
Extension springs do as their name suggests.
If your garage door has extension springs the springs stretch out as the door closes and retract as the door opens the garage door industry has released a standard color chart for the strength pull for these springs as seen in the table below.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
Raise door put vise grips on the track under the bottom rollers both sides of the door remove spring tension.
Ratings ranging from 1 2 horsepower to 1 1 2 horsepower are typical for residential models.
Torsion springs turn as you open and close your garage door.
1 75 means the inside diameter is 1 inches.
Door must be in the fully open position to remove the tension.
If you cannot find the size.
They extend as your door moves and helps to balance your garage door.
Extension springs and torsion springs are the two kinds of garage door springs you ll find in garage doors.
Heavier or one piece doors may require higher horsepower openers.
Height of the garage door can also affect the size of the spring or spring combination needed as well.
Garage door spring size chart.
All i know is that it is a 16 x 7 ft 4 panel door weighing approximately 195 lbs and has 4 cable drums.
Many of the older extension springs may not have visible paint color on either end of the spring.
Torsion springs the chart is based on information from the door access systems manufacturers association dasma.