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Journal · Juniors

Sizing a Junior's Clubs by Height, Not Age

Two ten-year-olds can stand nine inches apart. The box says "ages 9-12" as though that means something. It does not, and building a swing on top of the wrong length is expensive to undo later.


I fit somewhere around a hundred and fifty juniors a year, and the conversation almost always starts with a parent apologising. They bought a set at a big-box store, it seemed reasonable, the kid is not enjoying it, and they are not sure whether that is the clubs or the child.

Frequently it is the clubs. Not because the set was cheap — some inexpensive junior sets are perfectly well made — but because it was chosen off an age bracket printed on cardboard.

What actually determines length

Height first, wrist-to-floor second, strength third. In that order.

Height gets you into the right range. Wrist-to-floor refines it, because kids with the same height can have quite different arm lengths and a long-armed child needs a shorter club than the chart suggests. Strength decides whether they can actually control what you hand them, and it is the measurement most often skipped.

Primary measure Standing height
Refinement Wrist to floor
Deciding factor Can they swing it
Re-check Every 12 months

The cut-down adult club problem

The most common shortcut a parent or a club pro takes is to cut down an old adult club. It costs nothing and it produces a genuinely bad golf club.

Cutting a shaft removes length from the butt end, which is the softest, lightest part of the tube. What remains is disproportionately stiff and, crucially, the head weight has not changed at all. The result is a short, heavy-headed, boardy club that a fifty-pound child cannot load. They compensate by heaving at it with their whole body, and that heave becomes the swing they own for the next ten years.

Genuine junior shafts are built light throughout — often under 50 grams — and paired with lighter heads. That is a different piece of equipment, not a shortened version of the same one.

How to spot a club that is too heavy

Ask the child to hold the club straight out in front of them at shoulder height for ten seconds. If the head sags noticeably or their arm shakes, the club is too heavy for them to control through a full swing, regardless of what the length chart says.

How many clubs a junior needs

Fewer than you think. A beginner under about nine is well served by four: a driver or lofted wood, a mid iron, a wedge, and a putter. More clubs means more decisions and more standing around, and neither helps a child learn.

By twelve or thirteen, if they are playing regularly, seven or eight clubs makes sense. A full fourteen-club set before high school is almost always someone buying for the golfer they hope the child becomes.

Growth spurts and the yearly check

Between about eight and sixteen, a child can grow three to five inches in a single year, and occasionally more. A club that fit in March is short by December.

The signs are visible without measuring anything: they start standing further from the ball, the hands ride higher, contact drifts toward the toe, and the ball starts leaking right. Parents often read that as a technique regression and book a lesson. Sometimes it is a technique regression. Frequently it is four inches of growth.

We price the junior session at $75 for exactly this reason. It needs doing once a year during growth years, and if it cost what an adult session costs, nobody would do it.

Extending rather than replacing

Junior clubs can often be extended an inch, sometimes an inch and a half, with the correct butt-extension and a matching regrip. That buys a season for a fraction of the price of new clubs. It has limits — extension makes the club lighter in the hands and eventually the head weight needs addressing too — but it works well for one growth step.

Beyond that, the honest answer is new components. We keep a rotating shelf of returned junior clubs for exactly this cycle, which softens the cost considerably.

Left-handed kids

Let them be left-handed. Every few months a parent asks whether a naturally left-handed child should learn right-handed because equipment is easier to find. It is not worth it. Junior left-handed components are perfectly available if you order them a couple of weeks ahead, and building a cross-dominant swing to solve a purchasing inconvenience is a trade nobody should make.

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Junior sizing, $75, forty-five minutes

Height, wrist-to-floor, strength, and an assessment of what they are swinging now.

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