Ropework

8 Essential Sailing Knots Every Sailor Should Know

Published ยท Last checked October 2026

The eight knots every sailor uses are the bowline (a fixed loop), round turn and two half hitches (tying to a ring or post under load), clove hitch (fenders), figure of eight (stopper knot), reef knot (reefing and bundling), sheet bend (joining two ropes), rolling hitch (taking the strain off a jammed line) and the cleat hitch (making fast to a cleat).

A bowline tied in red rope on a white background
The bowline: a fixed loop that will not slip or jam, and can still be untied after a load. Photo: USCG PTC Developer, CC BY-SA 4.0.
What each knot is for.
KnotUseWatch out for
BowlineFixed loop: sheets to a clew, mooring loopsCan't be untied under load
Round turn and two half hitchesMooring to a ring or post; can be cast off under loadTake the turn first to hold the load
Clove hitchFenders to a guardrailCan slip on a smooth rail; add a half hitch
Figure of eightStopper knot at the end of sheetsEasy to check visually
Reef knotTying reef points, bundling sailsNot for joining ropes under load
Sheet bendJoining two ropes, especially of different thicknessDouble it for very different sizes
Rolling hitchTaking the load off a riding turn on a winchPull along the direction of the turns
Cleat hitchMaking a line fast to a cleatA round turn, figure of eights, then a locking hitch
Four knots tied in blue and red rope and numbered 1 to 4 for comparison
Similar-looking knots side by side. Tie each until you can tell them apart at a glance. Photo: V1adis1av, CC BY-SA 4.0.
Four rope terms: standing part and working end, bight, loop, and a round turn around a post
The words knot instructions use.

How to practise

Learn each knot until you can tie it with your eyes closed, then tie it around your own waist (bowline), behind your back and on a moving boat. Knots you have to think about will fail you in the dark.

Watch each one tied step by step in the animated knot guide, then work through the knots and ropework lesson.

How to tie each knot

Related guides

Frequently asked questions

What is the most important sailing knot?

The bowline. It forms a loop that will not slip or jam, and it is used everywhere aboard, from tying sheets to the clew to mooring lines and rescue loops.

Is a reef knot safe for joining two ropes?

No. It can capsize and slip under load, especially with ropes of different sizes. Use a sheet bend.

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