The 243 x 2″ x 32″ garage door torsion spring pair is a heavy residential counterbalance set for heavier insulated and double-wide residential doors. Each spring is wound from ASTM A229 Class II oil-tempered spring wire with a 0.243″ wire diameter, a 2″ inside diameter and a 32″ coil length, and the set includes one spring of each wind direction for a complete two-spring replacement.
Specifications at a Glance
What You Receive: A Matched Left and Right Pair
A two-spring torsion system needs one spring of each hand. The springs mirror each other so both unwind in the correct direction as the door rises. This set includes one of each, so a full replacement needs nothing else ordered.
Left-Wound Spring
- Mounts on
- Right side of the shaft
- Winding cone
- Black (industry standard)
“Right side” means standing inside the garage, looking out at the door.
Right-Wound Spring
- Mounts on
- Left side of the shaft
- Winding cone
- Red (industry standard)
Cone color indicates wind direction, not wire size. Those are separate color codes.
Only replacing one side? Order the individual spring instead: 243 x 2″ x 32″ left-wound spring (right side) or 243 x 2″ x 32″ right-wound spring (left side).
Will This Spring Fit My Door?
Torsion springs are not universal, and matching a single dimension is not enough. A spring one wire size off leaves the door either unliftable or dangerously spring-heavy.
- Wire diameter measures 0.243″ critical
- Inside diameter measures 2″ critical
- Unwound coil length measures 32″ critical
- Your system uses two springs, one per side
- You know which spring is left-wound and which is right-wound
- Cable drums, torsion shaft and end bearing plates are in serviceable condition
- There is enough shaft length for a 32″ spring body plus cones
Not sure about a measurement? Send us your door details and existing spring dimensions and we will confirm the correct size before you buy.
How to Measure a Garage Door Torsion Spring
Measure the wire diameter
With the spring fully unwound, push 20 coils tightly together and measure that length in inches, then divide by 20. Measuring 20 coils instead of one removes most of the error, and a 0.010″ mistake changes the torque significantly. A spring measurement gauge makes this faster.
Example: 20 coils measuring 4.86″ ÷ 20 = 0.243″ wire.
Read the inside diameter
The inside diameter is normally stamped or cast into the winding or stationary cone. Look for 2, 200 or P200. If the marking is unreadable, measure across the inside of the coil.
Measure the coil length
Measure the coil body only, excluding the cones, with the spring relaxed. If the spring is broken, push the two halves together and add the sections.
Identify the wind direction
Look at the coil end nearest the winding cone, or read the cone color: black for left-wound, red for right-wound. Standing inside the garage facing the door, a left-wound spring mounts on the right side of the center bracket and a right-wound spring on the left.
Full Technical Specifications
| Product type | Garage door torsion spring, matched pair |
|---|---|
| Quantity | 2 springs (1 left-wound, 1 right-wound) |
| Wire diameter | 0.243″ |
| Inside diameter | 2″ |
| Coil length | 32″ (body only, unwound) |
| Material | ASTM A229 Class II oil-tempered spring wire |
| Duty level | Heavy residential |
| Cones | Winding and stationary cones fitted |
| Typical application | Heavier insulated and double-wide residential doors |
| Shipping | Approx. 25 lbs, 36″ × 7″ × 4″ |
| Category | Garage door torsion springs |
What’s Included
In the box
- 1 × left-wound torsion spring, 0.243″ × 2″ × 32″
- 1 × right-wound torsion spring, 0.243″ × 2″ × 32″
- Winding and stationary cones fitted to each spring
Sold separately
- Winding bars, required for safe installation: winding bars
- Center bearing and end bearing plates
- Lift cables and cable drums, see cables and drums
Safety Warning: Professional Installation Strongly Recommended
Garage door torsion springs store enough energy to cause severe injury or death. A 0.243″ spring at full tension must be handled with the correct tools.
- Use correctly sized steel winding bars only. Never substitute screwdrivers, rebar, ratchet extensions or pliers.
- Disconnect the opener and secure the door fully closed before starting.
- Calculate the correct number of winding turns for your door. Do not guess.
- Never stand directly in front of, or in line with, a spring under tension.
If you are not trained and equipped for torsion spring work, have a qualified garage door technician carry out the replacement.
Signs Your Torsion Springs Need Replacing
A 2 to 3″ gap in the coil means the spring has snapped.
A sharp report from the garage, often mistaken for a gunshot.
Hard or impossible to lift by hand with the opener released.
The door rises 6 to 8″, then the opener reverses or stalls.
The door closes faster than normal or drops the last stretch.
One side lags, or a cable has gone slack or jumped its drum.
These symptoms can also point to worn cables, drums, rollers or bearings. Inspect the whole counterbalance system: replacing a spring on a failed drum simply breaks the new spring.
Why Replace Both Springs Together
Paired torsion springs share the door’s weight and wear at the same rate. When one breaks, the other is typically at a similar point in its life.
Fitting one new spring next to an old one leaves the pair mismatched: the door pulls unevenly, the cables load unequally, and the second spring usually fails within months. Replacing both at once restores even balance and puts both springs on the same maintenance clock.
Compare Torsion Spring Sizes
Ordering the neighboring wire size or length by mistake is a common error. Compare against the other sizes we stock:
| Size | Wire | ID | Length | Duty level | Sold as |
|---|---|---|---|---|---|
| 192 x 1.75 x 20 | 0.192″ | 1.75″ | 20″ | Light residential | Pair & Single |
| 207 x 1.75 x 25 | 0.207″ | 1.75″ | 25″ | Light residential | Pair & Single |
| 207 x 1.75 x 28 | 0.207″ | 1.75″ | 28″ | Light residential | Pair & Single |
| 218 x 1.75 x 28 | 0.218″ | 1.75″ | 28″ | Standard residential | Pair & Single |
| 225 x 1.75 x 28 | 0.225″ | 1.75″ | 28″ | Standard residential | Pair & Single |
| 225 x 1.75 x 29 | 0.225″ | 1.75″ | 29″ | Standard residential | Pair & Single |
| 234 x 1.75 x 29 | 0.234″ | 1.75″ | 29″ | Standard residential | Pair & Single |
| 243 x 2 x 32 this product | 0.243″ | 2″ | 32″ | Heavy residential | Pair & Single |
| 250 x 1.75 x 33 | 0.250″ | 1.75″ | 33″ | Heavy residential | Pair & Single |
| 262 x 1.75 x 37 | 0.262″ | 1.75″ | 37″ | Ultra heavy duty | Pair & Single |
| 273 x 1.75 x 40 | 0.273″ | 1.75″ | 40″ | Commercial grade | Single |
See the full range in garage door torsion springs.
Frequently Asked Questions
Does this set include both a left-wound and a right-wound spring?
Yes. The pair ships as one left-wound spring (black cone, mounts on the right side of the shaft) and one right-wound spring (red cone, mounts on the left side). That covers a complete two-spring replacement. If you only need one side, order the 243 x 2″ x 32″ left-wound spring (right side) or 243 x 2″ x 32″ right-wound spring (left side) instead.
What does “243 x 2 x 32” mean?
Three measurements in the order the industry quotes them: 0.243″ is the wire diameter, 2″ is the inside diameter of the coil, and 32″ is the length of the coil body with the spring unwound, excluding the cones. All three must match your existing spring.
How do I tell whether my spring is left-wound or right-wound?
Check the winding cone color: black indicates a left-wound spring, red a right-wound spring. Do not confuse the cone color with the wire-size paint mark on the spring body, which is a different system.
Can I fit these springs myself?
We strongly recommend a trained technician. Torsion springs hold enough stored energy to cause serious injury. Correctly sized steel winding bars are mandatory; improvised tools are the most common cause of torsion spring injuries.
How do I measure a spring that has already broken?
Push the two broken sections together end to end so the coils meet, then measure the combined coil body. Wire diameter still measures accurately on either piece: compress 20 coils, measure and divide by 20.
What else should I replace at the same time?
While the springs are off, inspect the center and end bearings, cable drums, lift cables and rollers. They cost little compared with a second teardown, and a worn drum or frayed cable shortens the life of a new spring.
How is it shipped?
It ships by FedEx, or you can collect it from our Sacramento or Santa Clara store. See our shipping policy for current rates and dispatch times.
Why Choose This Torsion Spring Pair
The 243 x 2″ x 32″ pair combines 0.243″ oil-tempered wire with a 32″ body for heavier insulated and double-wide residential doors, and the matched left-and-right set means one order completes the job. A correctly sized and properly tensioned pair returns the door to true balance: it holds position anywhere in its travel, the opener does only the work it was designed for, and the rest of the system lasts longer.
Confirm all three measurements plus wind direction before ordering. Contact us with your door details if you would like the size checked first.
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