Standard Garage Door Torsion Spring Finder

For Standard Lift Garage Door Systems

Use this finder to estimate the correct standard torsion spring by selecting your garage door height and confirmed door weight, or by selecting your door size, model, and construction type.

This chart is intended for standard-lift garage doors using standard hardware. Confirm the actual door weight before ordering. Standard lift drums are commonly D400-96. Cross references include APCO 400-8, DNS 4X-8, OMI 8', and M102-2400. If you are unsure or need further details, contact us before ordering.

Your Spring Result

Select one of the options above to find the recommended standard torsion spring.

Standard Lift Torsion Spring Calculation Form

Once you have gather the information following the guide. please fill out the form with the door information and our support will provide you with a spring recommdation.

Torsion Spring Recommendation Guide

How to Gather Your Garage Door Information

Use this guide when your original torsion spring size is unknown, the springs are missing, or you need help determining the correct replacement springs for your garage door.

Before you begin: This guide is intended for garage doors that do not have properly functioning torsion springs or when the original spring specifications are unknown. Use it when replacing missing springs, converting a spring system, or confirming which torsion springs your garage door requires.

If your garage door already had torsion springs that operated correctly before one or both springs broke, measuring the existing springs is usually the best starting point.

Measure Existing Torsion Springs Contact Us for Help
Important: Accurate measurements are essential for proper spring selection and safe door operation. If your garage door is difficult to lift, falls rapidly, or has broken springs, use caution when gathering measurements. Do not loosen, remove, or adjust torsion spring components unless you are trained and equipped to do so safely.
1

Measure the Garage Door Width

Measure the overall width of the garage door opening from one side to the other.

  • Record the width in feet and inches.
  • Common residential widths include 8', 9', 10', 12', 16', and 18'.
  • Measure the door opening or the actual door panel width as accurately as possible.
2

Measure the Garage Door Height

Measure from the bottom of the garage door to the top of the door.

  • Record the height in feet and inches.
  • Common residential heights include 7', 8', and 10'.
  • If the door is partially open or damaged, measure the opening height instead.
3

Determine the Door Weight

An accurate door weight is one of the most important factors when selecting torsion springs.

Preferred Method: Weigh the Door

  1. Disconnect the garage door opener.
  2. Make sure all spring tension has been safely removed, or confirm that no springs are installed.
  3. Place a scale under the center of the door on a flat, level surface.
  4. Carefully lower the door onto the scale.
  5. Record the total weight shown.

If the Door Is Difficult to Weigh

If you cannot safely weigh the door, look for the manufacturer's sticker or door label. The manufacturer may be able to provide the door weight using the model number, size, and construction type.

Do not weigh a door while spring tension is still supporting it. This can produce an inaccurate weight.

Garage door being weighed with a scale
Example of weighing a garage door
Tip: If one scale does not read high enough, two scales may be used, one near each side of the door. Add both readings together to estimate the total door weight. Make sure both scales are level and the door is resting evenly.
4

Measure the Track Radius

The track radius is the curved section where the vertical track transitions into the horizontal track.

  1. Locate the curved track section above the door.
  2. Measure the radius of the curved track as shown in the photo.
  3. Record whether the track is 12", 15", or a low-headroom setup.
Measuring garage door track radius
Common residential track radius measurements include 12" and 15".
5

Identify the Cable Drum

The cable drum is mounted at each end of the torsion shaft above the garage door. Drum information helps confirm the correct spring recommendation.

  • Look for the manufacturer or model number stamped on the drum.
  • If no marking is visible, provide the drum diameter and any clear photos.
  • Common residential standard-lift drums include D400-96, D400-8, 400-123, and 400-144.
Garage door cable drum model number example
Example of cable drum identification
6

Identify the Type of Lift

This guide is mainly intended for standard-lift garage doors. If you have a high-lift, vertical-lift, or low-headroom setup, mention that in the form or contact us before ordering.

  • Standard lift: Most common residential setup.
  • High lift: Door travels higher before turning horizontal.
  • Vertical lift: Door travels mostly straight up, common in some commercial setups.
  • Low headroom: Used when there is limited space above the door opening.
Standard lift, high lift, and vertical lift garage door examples
Standard lift, high lift, and vertical lift examples
Standard lift garage door interior example
Example of a standard-lift residential garage door

Information to Submit

To help us recommend the correct torsion springs, please include the following information with your request:

  • Door width
  • Door height
  • Door weight
  • Track radius
  • Cable drum information or photos
  • Lift type, especially if it is not standard lift

Providing complete and accurate information helps reduce mistakes and ensures a better spring recommendation for your garage door.

Submit My Door Information Contact Us

Need Help Finding the Correct Spring?

If your garage door specifications are not listed, or if you are unsure about your measurements, contact us before ordering. We can help review your door width, height, weight, track radius, drum information, and lift type.

Safety reminder: Garage door springs and related hardware are under extreme tension. Do not loosen or adjust spring components unless you are trained and properly equipped.