START ANCHORING, WITHOUT THE DRAMA

KNOX ANCHORS

Anchors that stay set when conditions change.

START ANCHORING, WITHOUT THE DRAMA

KNOX ANCHORS

Anchors that stay set when conditions change.

[ 30+ Years ]

[ BUY DIRECT ]

[ UK & EU SHIPPING ]

[ The Reality ]

Anchoring is easy. Until things change.

It’s wind shifts, changes in currents, and rising loads that reveal how an anchor really behaves.

Designed for calm, predictable holding.

When conditions change, what matters isn’t peak performance. It’s how your anchor behaves as loads increase and direction shifts.

Knox is designed to respond consistently, so you can stay in control and trust your setup over time.

Why the fluke is split?

Optimised Penetration

Helps sand and mud flow between the flukes promoting penetration of seabed.

Faster Setting

Designed for steady, repeatable behaviour as conditions change.

Real World Behaviour

Optimized for the seabeds people actually anchor in, not lab conditions.

Learn more about the decisions behind the design

Designed as a complete anchoring system.

Every part of the anchor is shaped by the same trust-first approach.

High strength steel

Built from grade 80 steel so it does not bend even under extreme real anchoring loads.

For use in the most challenging conditions

Designed to respond steadily and reliably as wind strength and direction change and loads increase.

Proven roll-bar design

The roll-bar helps ensure reliable orientation and consistent and rapid setting.

Rapid and deep penetration

Designed to rapidly penetrate and bury in the seabed for maximum holding.

THE 40x MULTIPLIER

Boat weight is not anchor load.

A 10-tonne boat does not pull with 10 tonnes of force. Knox anchors are engineered to deliver holding forces up to 40 times their own weight, easily exceeding the actual wind-load forces generated in severe storm conditions.

CALCULATE REAL ANCHOR LOADS →

* Actual holding requirements vary by boat profile, setup, and seabed.

Designed, built & supported by Knox.

Knox anchors are the result of over 30 years of engineering-led anchor testing and development.

Today, we sell directly to customers so the people you speak to are the same ones who design, test, and support the product. No distributors, no guesswork, no hand-offs.

Size matters.
We’ll verify it for you.

Don’t guess based on a chart. Tell us your boat specs and how you use your boat, and we will recommend the correct size you need.

Quick Size Check

Please enter a size between 20 and 65 feet.

We recommend oversizing for liveaboards.

See Where Knox is Featured

Built by engineers, not marketers.

Knox anchors are the result of 30 years of conservative, engineering-led development in Scotland. No trends. Just physics.

The Anchor

Ready to upgrade? See detailed specs, dimensions and pricing.

The Fit

Find the right size and fit for your boat and boating style

The Evidence

Sceptical? See the raw testing data and video evidence.