How Many Players Are on an NHL Roster? Lines, Pairings and Scratches

An NHL team puts six players on the ice at a time: five skaters and a goaltender. Twenty players dress for each game — 18 skaters and two goalies. The active roster tops out at 23, and a franchise may have no more than 50 players under NHL contract at once.

Those four numbers cover almost every question a new viewer has. What they don't explain is the structure underneath: four forward lines, three defensive pairings, healthy scratches sitting in the press box in suits, and a substitution system that lets players change while the puck is live.

The Numbers at a Glance

Six on the Ice: What You're Actually Watching

At even strength, each team has five skaters and one goaltender. The five skaters are almost always split three forwards and two defensemen:

• Center. Takes the faceoffs, plays the middle of the ice, and is usually the first forward back on defense.
• Left wing and right wing. Play the outside lanes and attack the net.
• Two defensemen. One left, one right. They guard their own net and hold the blue line when their team attacks.
• Goaltender. The only player allowed to freeze the puck, and the only one in 40-plus pounds of gear.

That six drops to five or four when penalties are called — the short-handed team's penalized player sits in the box and isn't replaced, which is what creates a power play. The details of who serves what and for how long are in NHL Penalty Rules: Minor, Major, Misconduct and Match, Explained.

It can also go the other way. A team trailing late may pull its goaltender for a sixth skater — the "empty net" gamble you see in the final 90 seconds of close games.

The Dressed 20 and the Scratched Three

NHL Rule 5.1 caps a team's game lineup at 18 skaters and two goaltenders. Those 20 names are handed to the official scorer before the puck drops, and no one else can play.

Because the active roster holds up to 23, a typical team has three players who are perfectly healthy, in the building, and not playing. These are healthy scratches, watching in a suit from the press box. It is a coaching decision, not an injury — a young defenseman rotating out, a struggling veteran, or simply the odd man out.

Teams are not required to carry all 23. Many run 21 or 22 to bank salary-cap space, which means one or two scratches instead of three.

Four Lines, Three Pairings, Two Goalies

Once you see the structure, a hockey broadcast stops looking like chaos.

Four forward lines of three. Eighteen skaters minus six defensemen leaves 12 forwards, in four units of a center and two wingers. The first line carries the best scorers, the second is the secondary scoring unit, the third is usually a two-way checking group, and the fourth — the energy line — plays fewer minutes and gives the top players rest.

Three defensive pairings of two. Six defensemen in three pairs, each usually one left-shot and one right-shot player. The first pair plays against the opponent's best forwards and quarterbacks the power play.

Two goaltenders. One starter, one backup. A modern NHL starter typically plays somewhere between 50 and 60 of the season's games, with the backup taking the rest, and there is no rule requiring either to play a certain amount.

Most teams dress 12 forwards, six defensemen and two goalies. Some coaches instead go 11 and seven, trading a forward for an extra body on the blue line.

How Ice Time Actually Gets Divided

Hockey is the rare team sport where the best players are on the field for a minority of the game. Even a first-line star gets roughly a third of the 60 minutes.

Ice time skews toward defensemen, since there are only six of them. The league's ice-time leaders are typically top-pair defensemen averaging in the mid-to-high 20s of minutes per game, while first-line forwards land closer to 18 to 21 minutes and fourth-liners often see under 12.

The reason nobody plays 40 minutes is the shift. NHL shifts average roughly 45 to 50 seconds, and better players take slightly longer ones — one full-season study found first-line forwards averaging about 51 seconds a shift and fourth-liners about 42. Skating at NHL speed is close to an anaerobic sprint, and past about a minute a player's ability to backcheck collapses.

That arithmetic is also what makes an icing call so painful, since it forces a tired unit to stay on the ice. See What Is Icing in Hockey? The Rule, Explained Simply for why.

Line Changes on the Fly

Here is the thing new viewers find hardest to follow: hockey substitutions happen while the puck is live. No whistle, no horn, no stoppage. Five players skate to the bench, five others jump over the boards, and the game does not pause.

A few mechanics make it work:

• A change is legal as long as the departing player is within five feet of the bench and out of the play. Teams that get it wrong are called for too many men on the ice — a bench minor penalty.
• Changes are made in the neutral zone or with possession deep in the attacking end. Changing while defending your own zone is how goals get scored against you.
• Defensemen and forwards change on separate rhythms — a forward line often swaps while the defense pair stays out.
• The home team gets the last change after every stoppage — it can see the visiting team's line first and answer with a matchup. That's the single biggest reason home ice is worth something in the NHL playoffs.

Once you know to watch the benches rather than the puck during a neutral-zone possession, line changes go from invisible to obvious.

The 23-Man Active Roster and the 50-Contract Limit

Above the game-night 20 sit two bigger numbers.

The active roster: 23 maximum, 20 minimum. These are the players available to dress, and everyone on it counts against the salary cap.

The 50-contract limit. A club may have no more than 50 players signed to NHL Standard Player Contracts at any time, counting everyone in the minor leagues too. Beyond that sits the reserve list — up to 90 players, adding unsigned draft picks and prospects a team holds rights to.

There is no NHL equivalent of an NFL practice squad. Players not on the 23 are assigned to the club's American Hockey League affiliate, where they play real games rather than practicing on standby.

In the playoffs the arithmetic changes. Under the collective bargaining agreement that took effect for the 2026-27 season, the 23-man limit disappears in the postseason, and only the cap hits of the 20 dressed players count toward the new playoff salary cap.

Recalls, Emergency Recalls and Paper Transactions

Moving a player up from the minors is a recall. Regular recalls are limited to four per club after the trade deadline, to stop contenders from stockpiling reinforcements.

Emergency recalls have no such limit. A team qualifies when injuries drop it below 12 available forwards, six available defensemen or two goaltenders, and it can then call up as many players as it needs.

You'll also hear about paper transactions: sending a player to the minors on an off day and recalling him the next morning without him ever leaving the city. Because cap charges accrue daily, a club tight against the ceiling can shave a few thousand dollars a day this way — tedious accounting with real consequences by March.

Injured Reserve: IR vs. LTIR

Two different lists, two different purposes.

LTIR is the more consequential one, and the 2026 CBA tightened it. Relief is now limited to roughly the league average salary when a player is expected back that season; full relief applies only when he is ruled out for the regular season and playoffs both. That closes the loophole in which a star returned for Game 1 of the playoffs on a roster that could never have fit him under the regular-season cap.

The Emergency Backup Goaltender

The best trivia answer in professional sports used to be this: if both of an NHL team's goaltenders got hurt in the same game, a guy from the stands finished it.

Under the system in place since 2017, each home arena kept an emergency backup goaltender — an EBUG — on standby, available to either team. They were amateurs: accountants, arena staff, beer-league goalies who happened to be in the building. They almost never played, and when they did it was the story of the season:

• Scott Foster, a 36-year-old accountant, entered for Chicago on March 29, 2018 and stopped all seven shots he faced in about 14 minutes.
• David Ayres, a 42-year-old Zamboni driver and arena operations manager, went in for the Carolina Hurricanes against Toronto on February 22, 2020, stopped eight of ten shots, and became the only EBUG ever credited with an NHL win. Carolina won 6-3.

Across roughly the last decade, EBUGs entered games only about six times in more than 13,000 regular-season contests.

That era is ending. Beginning with the 2026-27 season, the CBA requires each club to employ a full-time emergency goaltender who travels with the team, declared before the season and confirmed before each game. To qualify he must not have played an NHL game under a standard contract, appeared in more than 80 professional games, or played pro hockey in the previous three seasons — rules that keep the role amateur while making the person reliably available.

Taxi Squads: A COVID-Era Answer

If you remember the phrase taxi squad, it was a temporary invention. During the pandemic the NHL let clubs keep extra players — up to six — who practiced and traveled with the team but were not on the active roster, so a positive test wouldn't leave a club short. It was used in 2020-21 and revived briefly from December 2021 through the All-Star break in 2021-22. Taxi squads are not part of normal NHL operations; today's equivalent is the AHL affiliate plus the emergency recall rule.

Roster Sizes Across the Big Leagues

The NHL has the smallest gap of the four between the number who dress and the number in the building. An NFL team leaves six players in street clothes every Sunday and stashes 16 more on a practice squad. An NHL team scratches three.

Deeper breakdowns of the other two systems are at How Many Players Are on an NBA Roster? Two-Ways and Hardship Rules and How Many Players Are on an NFL Roster? Active, Practice Squad and Gameday Rules.

This page's salary-cap and WNBA roster figures change annually and are reviewed each offseason.

FAQ

How many players are on an NHL team? Six are on the ice per team at a time — five skaters and a goaltender. Twenty dress for a game, the active roster maxes out at 23, and a club may have up to 50 players under NHL contract.

How many players are on the ice in hockey in total? Twelve at even strength: six per team, including both goaltenders. That number drops during penalties and rises to 11 skaters plus one goalie when a team pulls its netminder.

What is a healthy scratch? A player on the active roster who is fit to play but left out of the 20-man lineup by the coach. He watches from the press box in a suit. With a full 23-man roster, three are scratched each night.

How many forward lines does an NHL team have? Four, each with a center and two wingers — 12 forwards in all. Add three defensive pairs (six defensemen) and two goaltenders and you reach the 20 who dress.

How long is an NHL shift? Roughly 45 to 50 seconds. Top-line forwards average slightly longer shifts than fourth-liners, but nobody stays out much past a minute at full speed.

Can hockey teams substitute while play is going on? Yes, constantly. Players change on the fly with the puck live, as long as the departing player is within five feet of the bench and out of the play. Getting it wrong is a too-many-men bench minor.

What is an EBUG? An emergency backup goaltender — historically an amateur on standby at each arena in case both of a team's goalies were unavailable. Starting in 2026-27, each club must instead employ a full-time emergency goaltender who travels with the team.

What's the difference between IR and LTIR? IR requires a seven-day absence and frees a roster spot but gives no cap relief. LTIR requires at least 24 days and 10 games missed, and lets a team exceed the cap by a limited amount to replace the player.

Does the roster get bigger in the playoffs? The 23-man limit goes away in the postseason, though teams still dress only 20 — and under the 2026 CBA only those 20 cap hits count toward the playoff salary cap.