Best Windlasses for Canal Boating

A good windlass is one of the most important bits of canal boating kit you will own. It is simple, compact and easy to take for granted, but it is the tool that gets you through locks safely and efficiently.

Choosing the best windlasses is not just about picking the shiniest handle in the chandlery. The right one should fit the paddle gear you use, feel comfortable in the hand, offer enough leverage and be safe to use in wet or awkward conditions.

This guide explains the main types of windlass, what to look for, and how to choose a sensible set for narrowboat cruising on UK canals and navigations.

What Is a Windlass?

A windlass is the removable handle used to raise and lower lock paddles. It fits onto the square spindle of the paddle gear, allowing you to turn the mechanism and let water in or out of the lock.

On most canals, you will use a windlass many times in a day. It needs to be reliable, comfortable and correctly sized. A poor fit can slip. A handle that is too short can make stiff paddles hard work. A handle that is too long can be awkward in tight spaces.

Windlasses are sometimes called lock keys or lock handles, although a separate waterways key, often called a handcuff key or anti-vandal key, may also be needed on some locks.

The Best Windlasses for Most Boaters

For general narrowboat cruising, the best choice for most people is a good quality double-ended steel windlass. This gives you two different socket sizes, which is useful when travelling across different waterways where paddle gear can vary.

A sensible everyday windlass should have:

• Two socket sizes to suit common spindle types.
• A comfortable handle that is easy to grip with cold or wet hands.
• Enough length for leverage without being cumbersome.
• Solid construction that does not flex under pressure.
• A secure fit on the spindle with minimal wobble.

If you only buy one, a double-ended windlass is usually the most versatile. If you cruise regularly, it is wise to carry at least two, partly for different users and partly because windlasses are easy to drop, misplace or leave behind at locks.

Main Types of Windlass

Double-Ended Windlasses

Double-ended windlasses are the most popular option for canal boaters. They have two different sized sockets, usually one at each end of the arm. This makes them useful across a wider range of locks.

They are practical for continuous cruising, hire boat holidays and longer trips where you may encounter varied paddle gear. If in doubt, this is the style to choose first.

The only drawback is that some double-ended models can be a little heavier than a basic single-ended handle. For many boaters, the extra versatility is worth it.

Single-Ended Windlasses

A single-ended windlass has one socket size. It can be lighter and simpler than a double-ended option, and some boaters prefer the feel of a well-balanced single-ended handle.

However, it is less flexible if you cruise on different canals. It can be a good spare, or a good choice if you know the waterway you use and are confident it suits the local lock gear.

Long Throw Windlasses

A long throw windlass has a longer arm, giving more leverage. This can help with stiff paddle gear, especially where mechanisms are heavy or not particularly smooth.

The extra leverage can be useful, but it also needs care. A long handle can swing further, catch on brickwork, or feel awkward on narrow lock sides. It may also encourage people to force gear that should be reported rather than battled with.

Choose a long throw windlass if you need extra leverage, but do not use it as an excuse to strain against a faulty paddle.

Short Throw Windlasses

A short throw windlass is compact and often quicker to use on easy paddles. It is handy where space is limited or where a long handle would catch on the balance beam, railings or lock wall.

The trade-off is reduced leverage. If you struggle with stiff paddles, a short handle may make lock work more tiring.

Ratchet Windlasses

Ratchet windlasses are designed to make turning easier in some situations, especially where space is awkward or paddle gear is stiff. They can be useful, but they must be used carefully.

Always make sure the ratchet is correctly engaged before applying pressure. Be especially cautious when lowering paddles, as a loss of control can be dangerous. Some boaters prefer a standard windlass because it gives a more direct feel of the gear.

If you choose a ratchet windlass, treat it as a specialist tool rather than your only handle.

Steel, Aluminium or Plated Finish?

Windlasses are commonly made from steel or aluminium, with some steel models having a plated or painted finish.

Steel windlasses are strong, durable and widely available. They often feel reassuring in the hand and can cope well with regular use. The downside is weight, especially if you carry one all day.

Aluminium windlasses are lighter, which can be helpful for anyone who finds a heavy steel handle tiring. They are pleasant to carry, but quality matters. A poorly made lightweight windlass may not feel as secure on stiff gear.

Plated windlasses can resist rust better than untreated steel and are easier to wipe clean. Over time, plating can wear, particularly around the socket and handle, so they still need basic care.

For most boaters, a robust steel double-ended windlass is the safest starting point. If weight is a concern, consider adding a lighter aluminium option as a second handle.

How to Choose the Best Windlass for You

Think About Where You Cruise

If you mostly stay on one canal, local advice from a chandlery, boatyard or experienced boater can be helpful. Some waterways have quirks, and lock gear is not always identical from one region to another.

If you cruise widely, choose versatility. A double-ended windlass is a sensible option because it reduces the chance of arriving at a lock with the wrong size handle.

Check the Fit

A windlass should fit securely on the spindle. It should slide on easily, but it should not wobble excessively or feel as though it may slip off under pressure.

A loose fit is not just annoying. It can round off gear, damage the windlass and increase the chance of injury. If a windlass does not sit properly, do not force it. Try the other end or use another handle.

Consider Handle Comfort

Lock work can involve repeated turning, often in rain, cold or bright sun. A handle that feels fine for one lock may become uncomfortable after several flights.

Look for a handle with enough room for your hand and no sharp edges. Some boaters like rotating grips, while others prefer a simple fixed handle. The best choice is the one you can control confidently.

Balance Leverage and Control

More leverage can make work easier, but it can also make it easier to apply too much force. Lock gear should move steadily. If it is extremely stiff, stop and consider whether something is wrong.

Use a longer windlass when genuinely helpful, but remember that control matters more than speed. Lower paddles steadily and never let the handle spin freely.

Carry a Spare

Windlasses have a habit of disappearing. They get left on beams, dropped in the grass, loaned to crew or, worst of all, left on the spindle.

A spare windlass is inexpensive compared with the inconvenience of being stuck without one. Many crews keep one by the stern, one in the cabin and one with whoever is working the lock.

Useful Features to Look For

Small design details can make a big difference when you are working through a long lock flight.

• Bright colour: Easier to spot in grass, on lock beams or in dim light.
• Hole for a lanyard: Useful if you want to attach it to a belt or bag, but never attach it in a way that could trap you.
• Smooth edges: Reduces discomfort and helps avoid snagging gloves.
• Good socket depth: Helps the windlass sit securely on the spindle.
• Manageable weight: Heavy enough to feel solid, light enough to carry comfortably.

A simple windlass can still be excellent if it fits well and feels safe. Avoid choosing purely on appearance.

Windlass Safety Tips

A windlass is a lever, and lock gear can carry a lot of stored force. Used carelessly, it can cause serious injury. Good habits matter.

• Never leave a windlass on the spindle. It can fly off or strike someone if the paddle drops.
• Keep control when lowering paddles. Do not let the handle spin freely.
• Stand in a stable position. Lock sides can be wet, uneven and slippery.
• Keep your face and body out of the swing path. If the handle kicks back, you do not want to be in its way.
• Do not force faulty gear. If a paddle will not move sensibly, stop and report it to the navigation authority.
• Use the correct key where required. Anti-vandal locks are there for a reason, and forcing them can damage the mechanism.

Gloves can help with grip and comfort, especially in cold weather, but they should not be so bulky that you lose feel and control.

How Many Windlasses Should You Carry?

For a short trip, one windlass per person working locks is a good starting point. For longer cruising, carry spares.

A practical setup for many narrowboats is:

• One everyday double-ended windlass for the main lock worker.
• One spare double-ended windlass kept aboard.
• One lighter or shorter windlass for easier paddles or a second crew member.
• A handcuff key or waterways key where your route requires it.

If you are travelling through lots of locks, having the right kit close to hand keeps things calm and efficient. Store windlasses where they are easy to grab, but not where they can fall into the cut.

Looking After Your Windlass

Windlasses do not need much maintenance, but a little care helps them last.

• Wipe off mud, grit and water after use.
• Check for cracks, bends or worn sockets.
• Deal with rust before it becomes a problem.
• Keep it somewhere dry when not in use.
• Replace any windlass that no longer fits securely.

If a windlass has been dropped onto hard ground or into a lock, inspect it before using it again. A damaged socket can slip at the worst possible moment.

Best Windlasses for Different Boaters

The best windlasses depend on how and where you cruise. Here are some practical recommendations by use rather than brand.

Best All-Round Choice

A solid double-ended steel windlass is the best all-rounder. It suits most crews, most routes and most ordinary lock work. If you are equipping a narrowboat from scratch, start here.

Best for Regular Lock Flights

For routes with many locks, comfort matters. Choose a windlass with a smooth handle, good balance and a weight you can carry all day. A second lighter windlass can be useful for easier paddles.

Best for Stiff Paddle Gear

A longer throw windlass can help with difficult gear, provided it fits securely and is used with care. If the gear feels seized or unsafe, do not keep forcing it.

Best Spare Windlass

A basic double-ended model makes the best spare. It does not need to be fancy, but it should be strong, reliable and compatible with the waterways you use.

Best for New Boaters

New boaters should choose a straightforward double-ended windlass and learn good lock technique before experimenting with specialist designs. Simple, sturdy and predictable is ideal.

Common Mistakes to Avoid

Even experienced boaters can pick up bad habits. Avoid these common windlass mistakes:

• Buying a windlass without checking whether it fits the waterways you plan to cruise.
• Choosing the longest handle available and then struggling in tight spaces.
• Using a loose windlass because it is the only one to hand.
• Leaving the windlass on the spindle while talking, opening gates or walking away.
• Letting paddles drop uncontrolled.
• Assuming all lock gear should be forced if it feels stiff.

Good lock work is steady, observant and unhurried. The right windlass helps, but safe technique is just as important.

Frequently Asked Questions

What size windlass do I need for UK canals?

Many UK canal locks use common square tapered spindles, but sizes and fittings can vary. A double-ended windlass is the safest general choice because it gives you two socket sizes and better route flexibility.

Is a steel or aluminium windlass better?

Steel is strong, durable and a dependable everyday choice. Aluminium is lighter and easier to carry, which can be helpful on long lock flights. The best option depends on your strength, comfort and cruising style.

Should I buy a ratchet windlass?

A ratchet windlass can be useful on awkward or stiff paddle gear, but it needs careful handling. Most boaters should still carry a standard windlass for everyday use and keep a ratchet as an additional tool.

How many windlasses should a narrowboat have?

At least two is sensible, especially if more than one person works locks. Carrying a spare prevents problems if one is lost, dropped or found not to fit a particular paddle spindle.

Can I leave a windlass on the lock spindle?

No. Never leave a windlass on the spindle. It can slip, spin or fly off if the paddle gear moves, creating a serious hazard for you and anyone nearby.

A Sensible Choice for Safer Lock Work

The best windlasses are not necessarily the most expensive or elaborate. For most narrowboat owners and hirers, a sturdy double-ended windlass, backed up by a spare, will cover everyday cruising very well.

Choose one that fits securely, feels comfortable and gives you enough leverage without compromising control. Add a lighter, longer or ratchet option only if it suits your route and your way of boating.

Look after your windlass, use it carefully and keep it close to hand. It is a small tool, but on the canals it plays a big part in making every journey smoother, safer and more enjoyable.