Best Locks for Inflatable Paddleboards and Kayaks
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Quick answer: inflatables have no rigid frame to lock through, so anchor to a stainless D-ring, reinforced carry handle, or fin box instead, never a seam or valve. Keep the board inflated when locking it so attachment points stay taut.
If you own an inflatable paddleboard or kayak, you already know the trade-off: they are wonderfully portable, but that same lightweight, soft-sided design makes them tricky to lock up. There is no rigid frame to thread a cable through and no obvious hard point to anchor to. Finding the best locks for inflatable paddleboards and kayaks means working around that limitation rather than fighting it.
Why Inflatables Are Harder to Secure
A hardshell kayak gives you scupper holes, carry handles bolted to the hull, and molded grab points. An inflatable SUP or kayak has soft, drop-stitch construction and, at most, a few D-rings or fabric handles. You cannot simply loop a cable around the body the way you would with a bike frame, and you should never run a cable through a valve or seam.
The goal is to create a secure connection between a deflation-resistant attachment point on the board and a fixed object, without damaging the material.
Where to Anchor an Inflatable
| Attachment Point | Notes |
|---|---|
| Stainless D-rings | Glued to the deck for towing or gear tie-downs, usually the strongest factory points. |
| Reinforced carry handles | At the nose, tail, or center of the board. |
| Fin boxes or removable fins | On many designs these accept a dedicated lock accessory. |
| Aftermarket lock plates | Designed to grip the board without puncturing it. |
The Right Lock for the Job
Because the board itself has no rigid loop, a flexible coiled cable is the practical choice. It lets you reach from the board's D-ring or handle to a roof rack, dock cleat, trailer, or fixed post. Our surf and SUP security collection is built around this scenario, and the DocksLocks Jaws SUP and surfboard lock adds a clamping attachment point so you have something solid to lock to even when the board does not offer one.
How to Lock It Up Without Damaging the Board
Run your cable through a reinforced D-ring or handle, not through a seam or valve. Keep the board partially or fully inflated when locking it on a rack so the attachment points stay taut and the cable cannot simply slip off a deflated, floppy hull. Always close the loop around a genuinely fixed object, a roof rack crossbar, a dock piling, or a trailer frame, rather than a railing that lifts away.
Marine-Grade Matters Near Water
Paddleboards and kayaks live in a wet, salty world. A lock that rusts shut after a few beach trips is worse than no lock at all. Choose weatherproof, corrosion-resistant cable and a sealed combination or keyed mechanism so the lock still opens after a season of spray and rain.
A Simple Routine That Sticks
Theft is usually opportunistic. A board left loose on a roof rack at a trailhead or a kayak resting unattended at a launch is an easy grab. Even a modest cable changes that calculation, because a thief has to work, and work in public, to defeat it.
Build the habit of locking every time you step away, even for a few minutes. Pair a quality coiled cable with a secure attachment point, anchor to something fixed, and your inflatable stays where you left it, ready for the next paddle.