10 Best Paddle Board Locks

• Typehardened steel D lock with an extension cable
• RatingGold Sold Secure for bicycles
• Mechanismdouble bolted
• Bodyhardened steel shackle and body
• Cable2.1 m, 12 mm thick
• In the box2 keys and a frame mounting kit

Best for: A board that lives on a roof rack or a garage rack where the anchor point is solid steel

This is a bicycle lock doing board duty, and it is the right tool in one specific case: the board is strapped to a rack, and the rack is what you are protecting. A Gold Sold Secure rating means the shackle survived an independent attack test, which no cable lock in this list claims.

The kit part matters. The 12 mm, 2.1 m cable loops through a fin box or around a board and back to the shackle, so the D lock takes the tool attack while the cable handles the awkward shape. Two keys and a frame mounting kit come in the box. What you cannot do is lock a board on its own to a tree, because there is nothing rigid for the shackle to close around.

• In the boxJaws lock, 10 ft coiled cable, fin box cleat
• Attachmentleash plug or fin box cleat
• Cable10 ft coiled with a resettable combination
• Materialsmarine-grade steel with a nylon housing
• Installationtool free
• Multiple boardsone Jaws lock per board on a shared cable

Best for: Anyone who wants a board locked at the beach without threading a cable through a scupper hole

This is the only product here designed around a paddle board from the start. The Jaws lock clamps into the leash plug or, with the included cleat, into the fin box, and the coiled cable runs from there to whatever is bolted down.

That solves the problem the cable-only locks work around. Threading 8 mm of steel through a scupper hole works on a hard kayak and is awkward on an inflatable SUP, where the leash plug is the only reinforced anchor on the deck. Everything is marine-grade steel in a nylon housing, installation is tool free, and the combination is resettable. If you lock more than one board you can share the cable but you need a Jaws lock for each.

• Typeself-coiling cable with a resettable four-digit combination
• Length20 ft, with 4, 6, 10, 15, 25 and 30 ft versions
• Diameter3/8 inch
• Cablesteel with a weatherproof vinyl coating
• Endmale end matched to the cable diameter
• Keysnone, combination only

Best for: Locking two or three boards on a roof rack to a fixed post without carrying a bag of cables

Lumintrail sells this in six lengths and 20 ft is the one that suits a car with boards on the roof. Self-coiling means it packs down to a spiral in the footwell rather than a loose tangle in the tailgate.

The detail that makes it a board lock rather than a bike lock is the male end, which is turned to the same diameter as the cable itself. That is what lets it pass through a scupper hole, a fin box or a D-ring without a plug on the end catching. Vinyl over steel keeps the coating from marking a deck or a roof, and the four-digit code is resettable, so there is no key to lose at a beach.

• Typecoiled cable with a resettable combination
• Lengths5, 10, 15 and 25 ft
• Diameter3/8 inch
• Cable7 braided steel strands under a vinyl cover
• Endnarrow male end for tight spaces
• Keysnone, set your own code

Best for: A board and a bike on the same cable, where the lock has to live in a day bag

MARQUE builds this around convenience. It coils itself, it takes a code you choose, and the male end is drawn narrow so it goes through the tight openings on a kayak or a board where a bulkier fitting will not.

Construction is seven braided steel strands wrapped in vinyl, the same recipe as most cables in this price class. Pick the length by the gap you actually have to bridge: 5 ft for a board to a bike rack right beside it, 25 ft if the fixed object is across a parking area.

• Typestraight cable with a resettable four-digit combination
• Length5 ft, with versions up to 25 ft
• Diameter10 mm
• Cablemarine grade weatherproof steel, vinyl coated
• Endmale end matched to the cable diameter
• Keysnone, choose your own code

Best for: A short run from a board to a post where you want thickness rather than reach

DocksLocks put the thickness where the other budget cables put length. At 10 mm this is a noticeably heavier cable than the 3/8 inch and 8 mm options here, and it is coated in vinyl over marine grade steel for salt water.

Five feet is the trade. It covers a board to a dock cleat, a bench leg or a rack bar directly alongside, and nothing further. The male end is the same diameter as the cable, so it feeds through fin boxes and scupper holes, and the four-digit code is yours to set.

• Typepatented lock that grips the board itself
• Attachmentleash plug, or fin box with a DocksLocks cleat
• Materialsmarine-grade galvanized steel in a nylon housing
• Cablenot included, requires a DocksLocks security cable
• Cleatsold separately
• Multiple boardsone Jaws lock per board

Best for: Someone who already owns a long security cable and needs a proper anchor on the board

This is the Jaws lock on its own, without the cable and the cleat that come in the full system. It exists for the paddler who already has a long security cable and only needs the piece that grips the board.

The mechanism is the same: marine-grade galvanized steel inside a plastic nylon housing, attaching at the leash plug or, with the separate cleat, at the fin box. Do the arithmetic before ordering. If you do not already own a DocksLocks cable, the complete system is the cheaper route to the same setup.

• Typekeyed adjustable cable lock
• Length6 ft (1.8 m)
• Diameter3/16 in (5 mm)
• Mechanismpatented lock that holds the cable at any position
• Cablebraided steel with a vinyl coating
• In the boxone cable lock and two keys

Best for: Cinching a cable tight around a fin, a paddle and a rack bar with no slack left over

The Python is built around one idea: you pull the cable through the lock body to any length and it holds there. On a board that matters more than it sounds, because slack is what lets a thief twist a cable against a hard edge.

Six feet of 3/16 in braided steel under vinyl will not stop a determined attack, and Master Lock does not claim it will. What it does well is take up the exact space between a fin box, a paddle shaft and a rack bar, with two keys in the box and a rust-resistant body for a season outdoors.

• Typestraight cable with a preset four-digit combination
• Length4 ft (1.2 m)
• Diameter5/16 in (8 mm)
• Cablebraided steel with a protective vinyl coating
• Security levelbasic, positioned as a theft deterrent
• Rated usebicycles, scooters, strollers, gear, grills, ebikes, kayaks

Best for: A lunch stop or a short walk where the board stays roughly in view

Master Lock is unusually plain about what this is: a basic security level, best used as a theft deterrent. That is the correct description and it is also the correct use case for most paddlers, who leave a board for twenty minutes rather than overnight.

For that job it is well judged. Four feet of 5/16 in braided steel under vinyl, a preset four-digit code, and a price that means losing it costs nothing. If the board is going to sit unattended for hours, move up the list.

• Typestraight cable lock with keys
• Length25 ft
• Diameter3/8 inch
• Cable7 braided steel strands with a vinyl covering
• Endnarrow male end for tight spaces
• Extrasdustproof cap over the keyhole, 2 keys

Best for: A roof rack full of boards that has to reach a post, a gate or a tree across a parking space

This is the reach option. Twenty-five feet gets from a roof rack, through two or three boards, around a fixed post and back, which is the arrangement most people actually need at a launch site.

MARQUE uses the same seven braided steel strands and vinyl cover as its coiled model, with a narrow male end so it threads through board and kayak openings. The keyhole gets a dustproof cap, which sounds trivial until you have tried to turn a key in a lock that has spent a week in sand and salt.

• Typestraight cable with a resettable four-digit combination
• Length18 ft, with 6, 12, 22 and 27 ft versions
• Cable8 mm high-strength braided steel
• Lock head12 mm
• Jointzinc alloy, reinforced construction
• Keysnone, reset the code at any time

Best for: Kayaks and boards with narrow scupper holes that a thicker cable will not pass

NDakter splits the difference that most cable locks get wrong. The cable is deliberately slim at 8 mm so it goes through the narrow scupper holes on a kayak or a board, while the lock head is 12 mm, which is the part a thief attacks first.

The rest is sensible rather than remarkable: high-strength braided steel, a reinforced zinc alloy joint that resists being pulled apart, a straight run that threads easily, and a resettable four-digit code. Five lengths are offered and 18 ft is the middle one, enough for a roof rack to a post with slack to spare.