How to Figure the Ideal Length of an Arm Lock Putter: A Comprehensive Guide
TL;DR – Arm Lock Putter Length
The Ideal Length of an Arm Lock Putter: A Comprehensive Guide
The length of an arm lock putter plays a crucial role in optimizing your putting technique, as it directly impacts comfort, alignment, and consistency on the greens. Arm lock putters are designed to stabilize the stroke by anchoring the shaft against the lead forearm, providing a pendulum-like motion.
This design helps reduce wrist movement and promotes a more consistent stroke, but choosing the right length is critical for maximizing these benefits. Here, we take a deep dive into determining the ideal length of an arm lock putter and how it can enhance your performance.
What is an Arm Lock Putter?
An arm lock putter is a type of putter that features a longer shaft and a specific grip angle designed to rest against the golfer’s lead forearm. This anchoring technique stabilizes the putting stroke, reducing variability caused by wrist movement.
This method is a popular choice among golfers seeking to improve their accuracy and consistency, especially under pressure.
Why is the Length of an Arm Lock Putter Important?
The length of an arm lock putter is essential for proper forearm alignment and stroke mechanics. A putter that is too long or too short can compromise the benefits of the arm lock technique, leading to poor performance and discomfort.
- Alignment and Stability:The correct length ensures that the putter shaft aligns seamlessly with the lead forearm, creating a stable connection. This alignment minimizes wrist movement and allows for a pendulum-like motion.
- Comfort and Posture:A properly fitted arm lock putter promotes a comfortable setup, encouraging better posture and reducing strain on the back and shoulders.
- Consistency in Stroke:With the right length, the putter enables a smoother, more repeatable stroke, enhancing overall performance on the greens.
How to Determine the Right Length of an Arm Lock Putter
1. Consider Your Height:
The golfer’s height is a primary factor in determining the correct length of an arm lock putter. While standard putters range from 33 to 36 inches, arm lock putters are typically longer, ranging from 38 to 43 inches.
- Taller Golfers (6 feet or above): Generally, a putter length of 42 to 43 inches works best.
- Shorter Golfers (under 6 feet): A putter length of 38 to 41 inches is often more appropriate.
2. Forearm Length and Position:
The putter shaft should rest comfortably along the inside of the lead forearm, extending to just below the elbow. The correct length ensures a natural grip without forcing awkward adjustments.
3. Putting Stance and Posture:
Your stance and posture also influence the optimal length. Players with an upright stance may prefer longer putters, while those with a more bent-over stance might need a shorter option.
4. Experimentation and Custom Fitting:
Trying out different lengths at a pro shop or during a fitting session can help you identify the perfect match. A custom fitting session is particularly valuable for tailoring the putter to your unique preferences and mechanics.
Benefits of Using the Correct Length of an Arm Lock Putter
- Improved Accuracy:Proper length promotes better alignment and reduces the likelihood of mishits.
- Increased Stability:Anchoring the shaft against the forearm minimizes wrist movement, creating a more stable stroke.
- Enhanced Consistency:A consistent stroke path leads to better distance control and improved overall performance.
- Comfortable Setup:The correct length supports a natural and relaxed posture, reducing physical strain during play.
Customizing the Length of an Arm Lock Putter
Many golfers choose to customize their arm lock putters to achieve the perfect fit. Here are some common adjustments:
- Grip Size and Type:Larger grips can complement the arm lock style by providing additional stability and comfort.
- Shaft Angle and Length:Adjusting the shaft angle can help fine-tune the forearm alignment for a more precise fit.
- Weight Distribution:Customizing the weight in the head or grip can further enhance the feel and performance of the putter.
Common Length Options for Arm Lock Putters
While the ideal length varies among golfers, here are some common options based on height and posture:

- 38-39 inches: Suitable for golfers under 5’8″ or those with a more crouched stance.
- 40-41 inches: Ideal for golfers between 5’8″ and 6’0″ with a moderately upright posture.
- 42-43 inches: Best for golfers over 6’0″ or those with an upright stance.
Pros and Cons of Arm Lock Putters
Pros:
- Stabilizes the stroke by reducing wrist movement.
- Improves alignment and consistency.
- Provides a legal alternative to traditional anchored putting techniques.
Cons:
- Requires adjustment to grip and stance.
- Not as versatile for all putting styles.
- May take time to adapt for golfers accustomed to traditional putters.
Professional Golfers and Arm Lock Putters
Several professional golfers have successfully used arm lock putters, demonstrating their effectiveness at the highest level.
Players like Matt Kuchar and Bryson DeChambeau have popularized this style, showcasing its potential for improving putting performance.
Final Thoughts on Choosing the Right Length
The length of an arm lock putter is a crucial factor in optimizing your putting technique. By considering your height, forearm length, and posture, you can find the perfect fit to enhance your game.
Whether you’re a seasoned golfer or new to the arm lock style, investing time in selecting the correct length can lead to significant improvements on the greens.
FAQs
1. Can I adjust the length of my existing arm lock putter? Yes, many putters can be modified by adding an extension or trimming the shaft, but consulting a professional club fitter is recommended.
2. Are arm lock putters legal in tournaments? Yes, arm lock putters are allowed under the rules of golf, provided they comply with equipment regulations.
3. Do arm lock putters suit all golfers? While they can benefit players seeking stability and consistency, they may not be ideal for golfers with unconventional putting styles.
Finding the right length of an arm lock putter can transform your putting game, providing the stability, alignment, and confidence needed to excel on the greens.

