7 Essential Knots Every Sailor should know
The seven knots every sailor should know, from the bowline to the rolling hitch, with tips from the Wavysail crew on when to use each one and how to practise them.
by Heather Deary · Sun 1 Nov 2026
What are the 7 Essential Knots Every Sailor Should Know
The seven knots every sailor should know are the bowline, figure of eight stopper, reef knot, round turn and two half hitches, clove hitch, sheet bend and rolling hitch. Between them they cover making a loop, stopping a rope, tying up a boat, joining two lines and taking the load off a jammed sheet.
Master these basics and you’ll be a more confident, useful crew member on any Wavysail adventure.
Whether you're hoisting sails in a blow, rafting up in a calm anchorage, or simply tidying lines at the end of the day, knots are a sailor’s everyday toolkit. Knowing the right knot — and being able to tie it quickly and confidently — makes life at sea smoother, safer, and a lot more satisfying.
At Wavysail, we encourage every sailor, whatever their experience level, to master a few essentials. Here are seven knots that you'll use time and again on board.
1️ Bowline : The Classic Loop
The bowline is often called the king of knots. It creates a strong, fixed loop at the end of a line that won’t slip, yet is easy to untie even after being loaded.
✅ Best for:
Tying sheets to the clew of the headsail
Securing a line to a post or ring
Creating a loop for temporary mooring
💡 Wavysail Tip: Learn to tie it one-handed or in the dark — it’s the knot that can get you out of trouble fast.
2️ Figure of Eight Stopper : The Simple Safety knot
This quick stopper knot prevents a line from running out through a block or fairlead. It’s simple but absolutely essential.
✅ Best for:
Stopping halyards and sheets from disappearing
Adding a neat ‘stop’ without bulky knots
💡 Wavysail Tip: Practice it until it becomes second nature.
3️ Reef Knot : For Tidy Bundles
The reef knot (or square knot) ties two ends of the same rope together neatly.
✅ Best for:
Reefing sails
Bundling spare lines on deck
⚠️ Important: Don’t use it for joining two separate ropes under load — it can slip.
4️ Round Turn & Two Half Hitches : The Reliable Mooring knot
This knot combines security and ease. The round turn takes the strain; the two half hitches lock it off.
✅ Best for:
Securing a boat to a ring, post or rail
Securing Lee-cloths
Securing fenders
💡 Wavysail Tip: Finish neatly — a good knot should be strong and easy to undo.
5️ Clove Hitch : Quick & Adjustable
Fast to tie and adjustable, the clove hitch is ideal for temporary fixes.
✅ Best for:
Light loads where quick adjustment is useful
Stowing spare lines
⚠️ It can slip under constant strain — back it up with a half hitch if you’re leaving it.
6️ Sheet Bend : Joining Two Ropes
The sheet bend is perfect for joining two ropes, especially of different thicknesses.
✅ Best for:
Extending mooring lines
Attaching messenger lines to halyards
Tie a double sheet bend when the load is heavy or the lines are slippery
💡 Wavysail Tip: Always form the loop with the thicker line and ‘bend’ the thinner one through.
7️ Rolling Hitch : When You Need Grip
The rolling hitch grips firmly in one direction but can slide in the other — incredibly handy in a pinch.
✅ Best for:
Taking the load off a jammed sheet
Rigging preventers
Temporary snubbers
💡 Wavysail Tip: Put the first two turns on the side the load will come from, lay them neatly side by side, then snug them down tight
🌊 Practice Makes Permanent
Knowing these knots is one thing — but tying them quickly in real sailing conditions is what matters.
Here are some fun Wavysail crew practice ideas:
🧶 Daily drills: Tie and untie each knot several times every day on board.
⏱ Speed challenges: Time each other during watch changeovers — it gets competitive fast!
🌌 Night practice: Try tying key knots with your eyes closed or under red light.
📝 Final Thoughts
Knots are the building blocks of seamanship. Whether you're new to sailing or a seasoned ocean adventurer, mastering these seven essentials will make you a safer, more capable, and more valued crew member.
At Wavysail, we believe sailing is about learning, sharing skills, and growing in confidence together — and it all starts with the basics.
Seven knots. Countless uses. Learn them, practise them, and they’ll serve you well on every voyage.
Why not read about our Blog on Why Passage Planning is the Heart of Safe Sailing
Want to learn these knots on the water? No experience needed. See our 2027 adventures →
For readers new to sailing, Croatia is the gentlest introduction, A week in Croatia is a great place to start
Knots : FAQs
What are the most important knots for sailing?
The bowline, figure of eight stopper, reef knot, round turn and two half hitches, clove hitch, sheet bend and rolling hitch.
What knot do you use to tie a boat to a post or ring?
A round turn and two half hitches.
How do you stop a line running out through a block?
Tie a figure of eight stopper in the end.
What is the difference between a reef knot and a sheet bend?
A reef knot ties the two ends of one rope together, and a sheet bend joins two separate ropes, even of different thickness.
Can I learn knots on a Wavysail trip?
- Yes. No experience needed. Crew practise them daily on board.