The first stick I ever played with was too long for me, and nobody noticed for most of a season. I thought I was just bad at cradling. I wasn’t — I was fighting a stick that didn’t fit, and every rep I took was teaching my hands the wrong thing.
That’s the problem with lacrosse stick sizing: it’s the one gear decision that quietly affects everything else, and it’s the one most parents get wrong. Buy too long “so he grows into it” and you slow down skill development for a full year. Buy a junior stick for a 12U player and he shows up to a game with equipment that isn’t legal.
This lacrosse stick size chart cuts through it — the exact legal lengths by age group straight out of the 2026 USA Lacrosse boys’ youth rulebook, and which specific sticks actually measure up at each age. Every stick here was checked on Amazon this week for real length specs and stock.
⚡ Quick Answer — What Size Lacrosse Stick by Age
🌱 Ages 4–8 (6U/8U): 37″–42″ legal — StringKing Boy’s Starter Junior — Check Price on Amazon →
🧒 Ages 9–10 (10U): 37″–42″ legal — STX Stallion 50 (39″) — Check Price on Amazon →
🏟️ Ages 11–12 (12U): 40″–42″ required — STX Stallion 200 A/M (41″) — Check Price on Amazon →
🎯 Ages 13–14 (14U): 40″–42″ required — StringKing Boy’s Starter Attack — Check Price on Amazon →
🎓 High school (14–18): 40″–42″ required — StringKing Complete 2 Intermediate — Check Price on Amazon →
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Lacrosse Stick Size Chart by Age (2026)
These are the legal crosse lengths from the 2026 USA Lacrosse boys’ youth rules. “Field player” covers attack and midfield — the short stick almost every young player uses. Long poles and goalie sticks have their own ranges, covered further down.
| Age Group | Typical Age | Field Player Stick | Long Pole | Goalie Stick |
|---|---|---|---|---|
| 6U / 8U | 4–8 | 37″–42″ | Not allowed | 37″–54″ |
| 10U | 9–10 | 37″–42″ | 47″–54″ | 37″–54″ |
| 12U | 11–12 | 40″–42″ | 52″–72″ | 40″–72″ |
| 14U | 13–14 | 40″–42″ | 52″–72″ | 40″–72″ |
| High school | 14–18 | 40″–42″ | 52″–72″ | 40″–72″ |
Lengths are for boys’ lacrosse, measured as the complete stick — head and shaft together. Source: 2026 USA Lacrosse boys’ youth rules. High school follows NFHS, which uses the same 40″–42″ field player range.
The single most important line in that chart is the jump at 12U. From 8U through 10U your player can legally use anything from 37″ to 42″. At 12U the floor rises to 40″ and stays there for the rest of their career. That three-inch change is where most families get caught out.
How We Built This Chart
The length ranges come straight from the 2026 USA Lacrosse boys’ youth rulebook, not from a manufacturer’s marketing page. The stick recommendations were checked against the actual listed dimensions on each product’s Amazon page this week — not the age label on the box — because “youth” and “junior” mean whatever a brand wants them to mean. Where a stick’s real measured length disagrees with how it’s marketed, we say so below. No product paid for its placement here.
How Lacrosse Sticks Are Actually Measured
Here’s the thing that trips up almost every parent buying their first stick: the legal length is the whole stick — head and shaft together — not the shaft on its own.
An adult attack shaft is 30 inches. Bolt a standard head onto it and you land right around 40 inches total, which is why 40″ is the legal minimum for older players. So when a listing advertises a “30-inch shaft,” that is not a 30-inch stick. And when a junior stick advertises a “28-inch shaft,” the finished stick still comes out near 38 inches once the head is on.
Measure a stick you already own from the very top of the head’s plastic scoop to the bottom of the end cap. That number is the one your referee cares about.
Sizing to the player, not just the rulebook
The rules give you a legal window. Inside it, fit matters. The rough guide most coaches use: stood on end next to your player, the stick should reach between the middle of their chest and their chin. Much taller and they’ll struggle to cradle tight to the body or protect the stick under pressure.
That’s a starting point, not a law. A strong 11-year-old handles a 42″ stick fine; a small one does better at 40″. Both are legal at 12U — pick the shorter end if you’re unsure, because a slightly short stick is far less of a handicap than one that’s too long.
🏃 Player Note: I’ve watched teammates play a full season on a stick that was two inches too long because it was the one their older brother handed down. You can spot it instantly — the bottom hand drifts off the end cap, cradling gets loose and wide, and ground balls turn into a wrestling match. It’s a fixable problem that costs a whole season if nobody catches it.
What Size Lacrosse Stick by Age Group
Ages 4–8 (6U and 8U): 37″–42″
What to buy: A true junior complete stick, at the short end of legal.
At this age the legal window technically goes up to 42 inches, but ignore the top of that range entirely. A six-year-old holding a 42-inch stick is holding something nearly as tall as they are. Buy short.
The StringKing Boy’s Starter Junior is built for exactly this — a 28-inch shaft instead of the adult 30-inch, and a thinner shaft diameter so small hands can actually wrap around it. It runs in the $70 range. The factory pocket is game-ready out of the box, which matters more than it sounds like it should: a badly strung pocket makes a beginner think they can’t catch.
Long poles aren’t allowed at all at 8U, so don’t let anyone talk you into one.
Ages 9–10 (10U): 37″–42″
What to buy: A junior stick or a short full-size stick — this is the crossover year.
10U is the widest, most forgiving sizing window in youth lacrosse, and it’s where you have real choices. A player who started at 8U and is still small can stay on the StringKing Boy’s Starter Junior. A player who’s grown can move up to the StringKing Complete 2 Junior, which measures around 38 inches and is explicitly legal for 10U league play — StringKing states that limit on the listing itself, which is refreshingly honest. It runs around $100.
The value pick here is the STX Stallion 50 at 39 inches, usually right around $50. It’s the cheapest stick on this page and the one I point most first-timers toward — soft, forgiving head, pre-strung, and legal for every 10U game. Just read the next section before you buy it, because 39 inches has an expiry date.
The STX Stallion 300 Junior is the other option in this bracket, though its price has been bouncing around lately — it’s been as low as $50 and as high as the low $70s in the last few weeks. Check the current number before you commit; at $70 the Complete 2 Junior is the better stick.
Ages 11–12 (12U): 40″–42″ — The Size Jump
What to buy: A full-size stick, minimum 40 inches. No exceptions.
This is the year the rules change on you. The 37-inch floor is gone; field players now need 40″–42″, and long poles become legal at 52″–72″.
The STX Stallion 200 A/M is the pick for most families. It measures about 41 inches, sits comfortably in the legal window with room on both sides, and the listing states it meets NCAA and NFHS rules — so it stays legal all the way through high school. It’s been sitting around $44 recently, which makes it the best value on this entire page.
If you want a better pocket out of the box, the StringKing Complete 2 Intermediate is a genuine step up — Type 3 mesh, strung properly at the factory, no break-in. It’s the priciest option here at roughly $115, and that’s the honest downside: you’re paying about two and a half times the Stallion 200 for a better pocket and a slightly better head, not for a different length.
Ages 13–14 (14U) and High School: 40″–42″
What to buy: A full-size stick you won’t outgrow — this is the last size change.
Good news: 14U and high school use identical field player lengths, so a stick bought at 13 is still legal at 18. This is the first purchase in your player’s career that isn’t temporary, which changes the math on how much to spend.
The StringKing Boy’s Starter Attack is full-size attack length with the best factory pocket of anything in this price range, around $100, and it’s backed by a replacement warranty if it breaks. The StringKing Complete 2 Intermediate at roughly $115 is the other strong option. Both stay legal through varsity.
By this point a lot of players want to pick their own head and shaft separately rather than buying a complete stick — that’s a reasonable move once they know their position. Our guide to lacrosse shafts under $100 covers that side of it, and the middle school gear guide covers what else changes at this age.
The 39-Inch Trap Nobody Warns You About
Here’s the detail that costs families money, and it’s the reason this article exists.
A lot of the best-selling beginner sticks measure 39 inches. The STX Stallion 50 is listed at exactly 39″. The StringKing Complete 2 Junior comes in around 38″. Both are excellent sticks. Both are perfectly legal at 8U and 10U, where the floor is 37 inches.
Neither one clears the 40-inch minimum that starts at 12U.
That’s not a defect — these are youth sticks doing the job they were built for, and STX labels the Stallion 50 as a youth stick right in the product name. But it means a stick bought for a 10-year-old has a hard shelf life. If your player is turning 11 and moving up to 12U next season, buying a 39″ stick now means buying another one in a few months.
Two ways to handle it:
- If your player is 10U and staying there: buy the 39″ stick. It’s cheaper and it fits them better right now.
- If they’re moving to 12U within a season: skip straight to a 40″+ stick like the Stallion 200. Slightly long for a few months beats illegal for a whole season.
And if you already own a 39″ stick your player has outgrown, you don’t necessarily need a whole new setup — a longer shaft under the same head is usually the cheaper fix, since heads and shafts are interchangeable across brands.
Long Poles and Goalie Sticks
Long poles (defense)
Long poles aren’t legal at 8U at all. They enter at 10U in a shortened 47″–54″ form, then jump to the full 52″–72″ range from 12U onward — the same range used in high school and college. Leagues also cap how many long poles a team can field at once, and that cap changes by age group, so check your league’s rules rather than assuming.
Don’t buy a long pole for a player who hasn’t been told by a coach they’re playing defense. A 72-inch pole is a different skill set, and a player splitting time between positions is better off on a short stick.
Goalie sticks
Goalie crosses get the widest window of any stick: 37″–54″ through 10U, then 40″–72″ from 12U up. The head is what actually distinguishes a goalie stick — it’s far wider, up to 16.5 inches in length by rule — and you cannot make a field stick legal for goalie by swapping the shaft.
How to Choose Inside the Legal Range
Height, not just age
Age groups are a legal category, not a fit guide. Two 12-year-olds can be eight inches apart in height. Use the chest-to-chin test on the actual player rather than defaulting to the age bracket, then confirm the result is inside the legal window for their division.
Position
Attack and midfield both use the same 40″–42″ short stick, so at the youth level position doesn’t change your sizing decision at all — only defense and goalie do. Anyone telling a 10-year-old they need a “midfield-specific” length is selling something.
Junior vs. full-size construction
Junior sticks aren’t just cut down. They use thinner shaft diameters and lighter heads proportioned for smaller frames. A 10-year-old handed a full-size stick that’s technically legal at 40″ will still find it thicker and heavier through the hands than a junior stick at 38″. Length is the rule; diameter and weight are the fit. Junior sticks typically last one to two seasons before a growing player needs the next size up — once you reach a full-size stick at 12U, that’s the last length change, so it’s worth spending more there than on anything before it.
Common Sizing Mistakes to Avoid
1. Buying long “to grow into.” This is the most common and most costly mistake. An oversized stick makes cradling, catching, and ground balls measurably harder, and the habits a player builds fighting it take longer to unlearn than the money saved is worth.
2. Measuring the shaft instead of the whole stick. A 30-inch shaft is a 40-inch stick. Confusing the two is how a parent ends up buying a stick that’s ten inches off what they intended.
3. Trusting the age label on the box. “Youth” and “junior” aren’t regulated terms. The Complete 2 Junior is legal to 10U; the Stallion 50 measures 39″. Check the actual number in the listing dimensions.
4. Forgetting the 12U jump. If your player is about to change age groups, size for the division they’re moving into, not the one they’re leaving.
Frequently Asked Questions
What size lacrosse stick for a 12 year old?
A 12-year-old plays 12U, where field players need a stick between 40 and 42 inches total. A junior stick is no longer legal at this age. The STX Stallion 200 A/M at about 41 inches is the value pick, and it stays legal through high school.
What size lacrosse stick for a 10 year old?
At 10U the legal range is 37 to 42 inches, which gives you real flexibility. Most 10-year-olds do best somewhere between 37 and 39 inches — the STX Stallion 50 at 39″ or the StringKing Complete 2 Junior at around 38″ both fit. Avoid the top of the range unless your player is unusually tall.
What size lacrosse stick for a 5 year old?
A 5-year-old plays 6U, where the legal minimum is 37 inches. Buy at that floor — a junior stick like the StringKing Boy’s Starter Junior with its 28-inch shaft. At this age the goal is a stick light and short enough that they can hold it properly with two hands.
How do I choose the right size lacrosse stick for my child?
Two steps. First, find your child’s age division in the chart above to get the legal range. Second, stand the stick on end next to them — it should reach between mid-chest and chin. If those two answers conflict, the legal range wins, and pick the shortest legal length that fits.
What are the standard lacrosse stick sizes?
Boys’ lacrosse has three: field player sticks at 40″–42″ (with youth divisions allowing down to 37″), long poles at 52″–72″ (47″–54″ at 10U), and goalie sticks at 40″–72″. Girls’ lacrosse uses a different set of specifications entirely.
Can my player use a 39-inch stick at 12U?
No. The 12U field player minimum is 40 inches, so a 39″ stick falls short by an inch. It’s legal at 10U and below only. If your player is moving up to 12U, size up before the season starts.
Our Verdict
If you take one thing from this chart, make it the 12U jump. Everything from 6U through 10U runs on a 37″–42″ window that fits almost any junior stick; at 12U the floor rises to 40 inches and never moves again.
For a young beginner, the StringKing Boy’s Starter Junior is the right shape and weight for small hands. Check Price →
For a 10U player, the STX Stallion 50 at 39″ is the best value in youth lacrosse — just know it ages out at 12U. Check Price →
For 12U and up, the STX Stallion 200 A/M at about 41 inches is the one stick on this page that’s legal at every level from 12U through varsity, and it’s the cheapest full-size option too. Check Price →
Once you’ve got the size right, the next question is which stick to actually buy in that size — our best youth lacrosse sticks guide breaks down the youth options in detail, and best lacrosse sticks under $100 covers the full-size picks without overspending.
Related Guides
- Best Youth Lacrosse Sticks
- Best Lacrosse Sticks Under $100
- Best Lacrosse Sticks for Beginners
- Best Lacrosse Gear for Middle Schoolers
- Complete Lacrosse Gear Checklist
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