A “schooner” can mean two different things, and the size depends on which one you’re asking about.

1. Sailing schooner (the ship)

In nautical terms, a schooner is a sailing vessel with two or more masts, usually fore‑and‑aft rigged. There’s no single fixed size; “schooner” describes the rig, not the exact length. In practice, classic schooners commonly fall in this approximate range:

  • Length overall: about 70–160 feet (21–49 m), depending on the design and purpose.
  • Beam (width): roughly 16–26 feet (5–8 m).
  • Draft: often around 6–16 feet (2–5 m), deeper on larger ocean‑going schooners.

Some concrete examples:

  • Schooner Zodiac: 160 ft overall, 26 ft beam, 16 ft draft.
  • Schooner Grace Bailey: 118 ft overall, 23 ft 5 in beam, 6–14 ft draft depending on centerboard.
  • Schooner Excelsior: 87 ft long, 25 ft beam, 7 ft depth.
  • Schooners Woodwind & Woodwind II: about 74 ft overall, 16 ft beam, 7 ft draft.

So if someone says “a schooner” in a sailing context, they usually mean a medium‑to‑large traditional sailing ship in roughly the 70–160 ft range.

Size examples table (ships)

[1] [3] [9] [5] [7]
SchoonerLength overallBeam (width)Draft / depth
Grace Bailey118 ft23 ft 5 in6–14 ft (centerboard up/down)
Excelsior87 ft25 ft7 ft depth
Woodwind74 ft16 ft7 ft draft
Zodiac160 ft26 ft16 ft draft
Morrissey (large schooner)152 ft LOA24 ft 5 in13 ft draft

2. Schooner as a beer glass

In some English‑speaking places (especially parts of Australia and Canada), “schooner” is also a term for a large beer glass. Exact sizes vary by region and bar, but it generally means:

  • A larger‑than‑standard beer glass, often somewhere around a pint or a bit more.

The key idea is that in bar slang, a schooner is a big pour of beer compared with a regular glass, while at sea it’s a fairly large, multi‑masted sailing vessel.

TL;DR:

  • As a ship: typically about 70–160 ft long, 16–26 ft wide, depending on the specific schooner.
  • As a beer glass: a large beer serving (size varies by region, but larger than a standard glass).

Information gathered from public forums or data available on the internet and portrayed here.