Iron shaft weight: How getting fit can improve your game
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An iron shaft can play a huge role on your golf game.
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If you’re still playing iron shafts just because they “felt okay” off the rack, we need to talk.
Shaft weight isn’t just about how heavy the club feels in your hands, it’s one of the biggest factors that determine how your irons can launch, how much they can spin, how they fly, and how consistently you can hit your carry numbers.
The problem?
Most of you have no idea what weight you should be using or why. And even fewer have actually been fit for a proper iron shaft. Irons are scoring clubs. They make birdies a reality. If you haven’t been fit, that’s a massive, missed opportunity to improve your game without changing a single thing about your swing. That’s a golf cheat code.
Why shaft weight is a big deal
The weight of your iron shaft directly impacts:
- Tempo – Heavier shafts tend to smooth out quick transitions, while lighter ones can benefit smoother, slower swings.
- Launch & spin – Lighter shafts usually launch higher and spin more; heavier shafts do the opposite.
- Consistency – Get this wrong, and you’re fighting your equipment. Get it right, and suddenly you’re pin-seeking. (Think about how your back is feeling on the back 9)
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Here’s where fitting comes in
You could try to sort all this out yourself by trial and error, YouTube deep dives, or hitting a few balls on a launch monitor at your local shop. But there’s a better way: get fit by someone who really knows what they’re doing.
A professional fitting company, like True Spec Golf, takes the guesswork out of the equation. Their fitting process is dialed and completely brand agnostic. You test shafts across different weights, brands, bend profiles, and materials; all while tracking the data.
You will see, in real time, how changing shaft weight changes your ball flight, spin, and distance right there on the screen. And because they’re brand-agnostic, they don’t care what name is stamped on the shaft. They just want to find what performs best for you. A “fit the player, not the product” type of approach.
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Real talk: guessing is going to cost you
That iron shaft you’ve been gaming for five, six, ten years? That “trusty” gamer could be holding you back. It might be too heavy, costing you carry. (The Dynamic Gold S300 I grew up playing) Or you could be playing something too light, which is hurting your dispersion. The crazy part? You might not even feel it… it just shows up on the scorecard. One of those “you don’t know what you don’t know” situations.
When you find your fix
Dialing in your shaft weight and bend profile can lead to:
– Better distance gapping
– More consistent ball flight
– Improved control into greens
And honestly, who doesn’t want that?
Getting fit for iron shafts isn’t just for the elite player anymore. It’s for anyone who wants to make golf a little easier and a lot more consistent. Shaft weight plays a huge role in how you deliver the club and if you’re finding the center of the face. If the weight is off, all of your swing compensations are just damage control.
Let’s be honest, golf is hard enough without playing a shaft that’s fighting your swing. Shaft weight isn’t just a “gear nerd” detail. It’s a huge performance lever that can unlock better launch, tighter dispersion, and more control over every iron in your bag.

TaylorMade 2025 P790 Custom Irons
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Also available at: TaylorMade Golf, PGA Tour Superstore
Unfortunately, this is not a DIY project, you won’t find the right shaft weight by guessing, Googling, or hoping. You need real data, real options, and someone who knows how to translate your swing into the correct setup for how YOU swing the club.
That’s exactly what you get at True Spec Golf. When you book a fitting with one of their Master Fitters, you’re getting someone who is on your side and is invested in seeing you play your best golf.
It’s not about trends or what’s in someone else’s bag, it’s about you. And the best part? You’ll see, and feel, the difference instantly. As a Master Fitter myself, the winning combination will jump off the page almost in the first few swings.
If you’re serious about improving your iron game, stop guessing and get fit.
Ready to get fir for your next set of irons? Book your fitting at your local True Spec
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Kris McCormack
Golf.com Contributor
Building on a career that has spanned more than 20 years in the golf industry, McCormack has spent the last six years of his career serving as the Vice President of Tour and Education for True Spec Golf. During that time, he curated the training program for the True Spec fitting staff and pushed for more continuing education curriculum. As well as managing their Tour department and building relationships with a multitude of OEM partners. Prior to joining the True Spec team, McCormack worked with several of the industry-leading manufacturers as a Master level Fitting Professional. In addition to being an instructor and partnering with the Golf Channel Academy as a lead instructor and brand-agnostic Fitting Professional. He has also worked with R&D teams to assist in product design, testing, and development for a variety of gear releases. He is a golf enthusiast and lives in the gear space!