Single-Length Irons: What to Know Before You Switch
If you have ever stood over a long iron and felt a completely different posture, ball position and swing creeping in compared with your trusty 8 iron, you have already bumped into the problem single length irons were built to solve. In a traditional set, every iron is roughly half an inch longer than the club below it, so no two irons ask you to stand to the ball in quite the same way.
A single length set throws that ladder away. Every iron, from the longest to the pitching wedge, is built to one shaft length, usually close to a standard 7 or 8 iron. The appeal is obvious: one setup, one ball position and one swing for the whole set. Whether that simplicity actually helps your scores is a more interesting question.
What Single Length Irons Actually Change
The idea is older than most golfers realize. Small companies sold same length sets in the 1980s, and the late 1980s EQL irons from Tommy Armour disappeared almost as fast as they arrived. The concept only broke into the mainstream after Bryson DeChambeau won the NCAA individual title and the U.S. Amateur in 2015 with a same length set, and Golf Digest notes that he has since won two U.S. Opens with his unusual approach.
The core promise is simple: single length means one swing and one setup from long irons to wedges, which makes practice more efficient and a repeatable motion easier to groove. In practice, that means your long irons get shorter and easier to control, while your short irons get longer than you are used to.
That second half matters as much as the first. Shortening a 5 iron by an inch or more makes it feel friendlier at address. Lengthening a pitching wedge by a similar amount changes how it sits, how far it flies and how precisely you can control it.
The Engineering Problem Every Set Has To Solve
In a traditional set, length and loft work together to space out your distances. A longer shaft creates more clubhead speed, and less loft sends the ball farther. Remove length from that equation and loft alone has to do the work, which is harder than it sounds.
Designers compensate in several ways. Head weights are adjusted so every club swings with the same feel, since a standard wedge head on a 7 iron length shaft would feel like a sledgehammer and a standard long iron head would feel far too light. Longer irons often get faster faces, more offset or a lower, deeper center of gravity to help the ball launch, and some brands tune the shaft through the set as well.
Even with that work, long irons in a single length set tend to fly a little lower and carry a little shorter, while short irons fly a little higher and longer. For many golfers, that compression at both ends of the set is the main trade.
Fitting these clubs properly is also more involved than it looks. Woody Lashen of Pete's Golf, speaking with Practical Golf, described spending hundreds of hours with club builder Mr. Ohno dialing in a set for PGA club professional Matt Dobyns, adjusting lofts, lies and center of gravity after each round of testing. Dobyns ended up with a set built at two lengths rather than one, and his play from 150 to 200 yards improved dramatically.
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Who Single Length Irons Tend To Help
The golfers who seem to benefit most are those whose long irons are the weakest part of their game. If you strike your 8 iron well but top, thin or avoid your 5 iron, bringing every club down to a comfortable length removes the setup changes that cause those misses. Newer golfers can also benefit, since learning one setup is simpler than learning a different one for every club.
There is a real world test worth noting. When the Golf Monthly editor played one length irons for a year with Arccos shot tracking, his iron play, normally a weak spot, improved and felt more consistent through the whole set. Another group that fitters often mention is the former good player who now lacks time to practice, because a single repeatable setup is easier to keep sharp with fewer range sessions.
Before deciding the long irons are the problem, it helps to record your real carry with each iron over several sessions. If your 5 and 6 irons wander by 20 yards while your short irons stay tight, that pattern points toward a length and setup issue rather than a pure swing problem.
The Tradeoffs You Should Not Ignore
Speed is the biggest limitation. A shorter long iron generates less clubhead speed, and golfers with slower swings can struggle to launch lower lofted clubs high enough to hold a green. Lashen raised that concern directly, and it shows up on launch monitors as low spin and flat ball flight with the longest irons in the set.
The short end of the bag has its own quirks. The Golf Monthly tester found chipping and pitching around the green harder with longer shafted scoring clubs, During a filmed GOLFTEC fitting session, a newer golfer said the single length 9 iron felt like holding a 6 iron, even though it went farther than her normal 9 iron.
Gapping deserves a close look too. Because distances bunch at both ends, you may find your longest iron and the club below it landing only a few yards apart. That is why it pays to check the yardage gaps through your bag after any switch, and to consider a hybrid or a lofted fairway wood where a long iron no longer earns its place.
Trend Or Fad After A Decade Of Evidence
The honest answer is neither. Single length irons have not taken over golf, and only a small number of manufacturers offer a full set, most of them specialist builders rather than the big bag brands. Most golfers still play traditional variable length sets and probably always will.
Yet the idea has also outlasted every prediction that it would vanish. A major championship winner still plays it at the highest level, and fitters continue to find players whose consistency improves after switching. That makes single length a durable niche: a legitimate option for specific golfers rather than a revolution or a gimmick.
Blended sets show where the idea may be heading. Some builders now offer combo designs where the wedges and short irons share one length while the longer irons step up gradually, capturing part of the consistency benefit without giving up as much speed at the top of the set.
How To Decide If A Single Length Set Fits Your Game
Start with your current numbers. Compare your long iron carry against how far typical golfers carry a 5 iron at your handicap, and look at how much your strike quality drops as the clubs get longer. A big drop in consistency with length is the clearest signal that single length might help.
Then test before you buy. A fitting is essential, and liking the 7 iron is not enough; you need to hit the long and short irons to confirm every distance and ball flight you rely on. For some golfers, a shorter hybrid solves the long iron problem more simply.
If the long irons launch well enough, the wedges still feel controllable and your gaps hold up on the course, single length can be a genuine upgrade. If not, the lesson still has value: shorter, easier clubs at the top of the bag help almost everyone, whatever form they take.
Single Length Irons FAQ
Are single length irons good for high handicappers?
They tend to help golfers whose long irons are the weakest part of the bag, and newer players who benefit from learning one setup and one ball position instead of a different one for every club.
Do single length irons lose distance?
Long irons usually carry a little shorter because the shorter shaft produces less clubhead speed, while short irons often fly slightly higher and longer than the ones they replace.
Who makes single length irons?
Only a small number of manufacturers build a full single length set, and most of them are specialist club builders rather than the largest bag brands.
Do I need a fitting before switching?
Yes. Hit the long and short irons, not just the 7 iron, and confirm the carry distances and ball flights you rely on before committing to a set.
