Single Length Irons (2026): Pros, Cons and the Best Sets

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Short answer

Single length irons are built so every iron, from the long irons to the wedges, is the same length (usually a 7-iron's, about 37 inches) with the same lie angle and head weight. Only the loft changes. They help golfers who struggle to repeat their setup from club to club. The best current set is the Cobra King Tec-X One Length; seniors on a budget should look at the Majek Senior Single Length hybrid set, which comes in senior-flex graphite.

Bryson DeChambeau made single length irons famous when he won the 2020 U.S. Open with them, but the idea is much older. We didn't test these sets ourselves; this guide is based on maker specs, published reviews and independent tests (how we pick). The evidence on single length irons is thinner than for most clubs, and we say where it runs out.

Our picks

  1. Illustration: Cobra King Tec-X One Length Irons
    Illustration

    Best current one-length set

    Cobra King Tec-X One Length Irons

    Cobra has sold one-length irons since 2017 and is the only big brand we found still selling them. The Tec-X head is hollow and slightly larger than a players' iron, with extra help in the long irons.

    • Every iron at 7-iron length
    • Hollow body, 70 g tungsten in the toe
    • 5-6 irons: wider soles, weaker lofts
    • Steel stock; graphite custom order
    • Released 2025

    The catch: Aimed at 10-20 handicaps, the stock steel is heavy for many seniors, and graphite is custom-order only.

    Maker's list price$1,299 (7 clubs, 5-GW) Check price at Amazon
  2. Illustration: Majek Senior Single Length All-Hybrid Set (#3-PW)
    Illustration

    Best budget set for seniors

    Majek Senior Single Length All-Hybrid Set (#3-PW)

    A whole set of hybrid heads at one length with a true senior flex, for about a third of the price of the Cobra irons.

    • 8 hybrids, #3 (20°) to PW (45°)
    • All 38 inches; -1 or +1 inch options
    • Senior-flex graphite; right- or left-handed

    The catch: A small brand with no independent launch-monitor testing we could find.

    Maker's list price$399.95–469.95 Check price at Amazon
  3. Illustration: Cobra Darkspeed One Length Irons
    Illustration

    Most forgiving Cobra option (older model)

    Cobra Darkspeed One Length Irons

    Cobra's 2024 game-improvement one-length set (the Tec-X is a "players game-improvement" iron), with a Lite graphite shaft available to order.

    • All irons 37.25 inches
    • 7-iron 27°, PW 42°
    • Graphite KBS PGI in 65 g Lite (custom)
    • Released 2024

    Skip it if: you can't find it new at a fair discount; a used 2024 set is worth only so much.

    Maker's list price$999 steel, $1,099 graphite (at launch) Check price at Amazon
  4. Illustration: Cobra King Tec One Length Hybrid
    Illustration

    One-length hybrid to replace long irons

    Cobra King Tec One Length Hybrid

    Replaces the long irons in a one-length set without giving up the single setup, and it comes in a Lite graphite flex.

    • 3H 19°, 4H 21°, 5H 24°
    • All 37.25 inches (7-iron length)
    • Graphite Lite or Regular; ±2° hosel
    • Released 2025

    The catch: Right-handed only, and Cobra aims it at better players.

    Maker's list price$299 at launch; $319 on Cobra's site (Oct 2026) Check price at Amazon
  5. Illustration: Avoda Origin Same Length Irons
    Illustration

    Forged set for better ball-strikers

    Avoda Origin Same Length Irons

    Soft-feeling forged irons sold in same-length sets. Golf Monthly praised the feel and turf interaction.

    • Forged carbon steel, muscle-cavity
    • 4-PW or 4-LW sets
    • Chrome or black finish

    Skip it if: you need forgiveness or a light graphite shaft; this is a compact, forged iron.

    Maker's list priceFrom $985 (Avoda's site, Oct 2026) Check price at Amazon

What are single length irons?

In a standard set, each iron is usually about half an inch longer than the next, from the wedges up to the long irons. Lie angle and head weight change with the length. In a single length set:

Pros and cons

Single lengthStandard (variable) length
SetupOne posture, ball position and swing for every ironChanges a little with every club
Long irons (4–6)Shorter, so easier to controlLonger, harder to hit consistently
Short irons and wedgesLonger than usual; some golfers lose touchShort and precise
Distance gapsCan bunch up in the long ironsBuilt into the set by length and loft
Choice and fittingFew makers; Cobra is the main brandEvery brand, every fitter
ResaleSmaller used marketEasy to sell or trade in

What the testing shows

GOLF.com tested a single length set against a standard set on TrackMan. Players got more even gaps from club to club with single length; with the standard set, some hit their 4- and 5-irons the same distance. The single length long irons launched lower, though, which means less stopping power on greens. From 8-iron to pitching wedge, both sets performed about the same. GOLF.com concluded they suit beginners and high handicappers more than low handicappers, who took longer to adjust.

The main drawback is physics. GolfWRX's Paul Wood points out that shortening a 4-iron to 7-iron length makes it hard to produce the same height and distance. Makers compensate: Cobra uses weaker lofts and wider soles in the 4–6 irons, and Wishon used hotter, high-COR faces in the 5-, 6- and 7-irons. Wishon chose an 8-iron length because most golfers hit their 8-iron more consistently than their 6-iron, accepting a loss of 4–7 mph of ball speed in the long irons.

That's about as far as the independent evidence goes. Cobra says Arccos users who switched to One Length hit more greens in regulation, but that's the maker's own claim, not an independent test.

Are single length irons good for seniors?

They can be, for one specific problem: you hit some irons solidly and others badly because your setup keeps changing. If your 8-iron feels easy and your 5-iron feels like a different club, a one-length set is worth trying.

They're less useful if you've already replaced your long irons with hybrids. A senior set that starts at the 6- or 7-iron only spans a couple of inches from top to bottom anyway, so making them all one length changes less. For many slower swingers, the bigger win is easier long clubs, not one length; our best irons for seniors guide covers that route.

Weight matters too. Cobra's King Tec-X One Length comes with 105-gram KBS Tour Lite steel shafts, heavier than most seniors need. If your driver speed is under about 83 mph, ask for graphite in a Lite or Senior flex (see senior flex vs regular flex), or start with the Majek set, which comes in senior-flex graphite.

Try before you commit. Hit a one-length 5-iron and wedge next to your own before buying a set. The wedge is where most golfers notice the difference first.

Other single length options

How to choose a single length set

1. Pick the length that fits you

Most sets are built around 37 to 37.25 inches. Taller players may want +½ or +1 inch; Majek and Pinhawk both offer longer and shorter builds. A fitter can check that the lie angle suits your posture, since every club shares it.

2. Check the gaps at the top of the set

Because the long irons lose some speed, the 4- and 5-irons can fly almost the same distance. Many golfers drop the 4-iron and use a fairway wood or hybrid instead. Cobra's One Length hybrid keeps the same length if you want everything to match.

3. Get the shaft right

One length doesn't fix a shaft that's too heavy or stiff. Use the club finder to estimate your flex before you order.

4. Think about the wedges

At 37 inches, a sand wedge is about two inches longer than usual. Some golfers keep standard-length wedges and play one-length irons only through the 9-iron or pitching wedge.

Mistakes to avoid

Shopping for a whole new bag instead? See our best golf club sets for seniors.

Common questions

What are single length irons?

Irons that are all the same length, usually a 7-iron's (about 37 inches), with the same lie angle and head weight. Only the loft changes from club to club, so you use one setup and one swing for every iron.

Are single length irons good for seniors?

They can help seniors whose setup changes from club to club and who hit some irons much better than others. If you already play hybrids instead of long irons, the benefit is smaller. Choose light graphite in a Senior or Lite flex.

Do single length irons go farther?

No. The long irons are shorter than usual, so they usually fly a little lower and shorter. Makers use weaker lofts or hotter faces to make up some of it. The goal is consistency, not distance.

Does Cobra still make One Length irons?

Yes. The current set is the King Tec-X One Length (released in late 2024 as a 2025 model), $1,299 for seven clubs at list, and still sold new at retailers in October 2026. Cobra also sells the King Tec One Length hybrid.

What did Bryson DeChambeau use?

Single length irons built to about 37.5 inches. He played Cobra One Length irons for years and won the 2020 U.S. Open with them.

What are the disadvantages of single length irons?

Long irons can lose height and distance, short irons and wedges feel longer than normal, the 4- and 5-irons may fly similar distances, there are few brands to choose from, and used sets are harder to sell.

Sources

  1. GOLF.com: Single length irons tested against standard irons
  2. GolfWRX: Should everyone play single length irons? (Paul Wood)
  3. GolfWRX: Tom Wishon's new single length Sterling irons
  4. Sterling Irons: First generation is wrapped up
  5. Wishon Golf: EQ1-NX single length
  6. ValueGolf: Pinhawk SL single length irons
  7. PGA Tour Superstore: Cobra King Tec-X 2025 One Length irons
  8. Cobra: King Tec-X One Length hybrid
  9. MyGolfSpy: Cobra King Utility Black One (7-iron length explained)
  10. GOLF.com: Shaft flex by swing speed (True Spec Golf)
  11. Cobra King Tec-X One Length Irons (maker or review)
  12. Cobra Darkspeed One Length Irons (maker or review)
  13. Majek Senior Single Length All-Hybrid Set (#3-PW) (maker or review)
  14. Cobra King Tec One Length Hybrid (maker or review)
  15. Avoda Origin Same Length Irons (maker or review)