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If a boat is pinned against a dock, protect the people aboard and call for help if anyone is trapped or injured, the hull is taking on water, or the vessel is in immediate danger. Do not jump ashore, push off with your arms or legs, apply engine power, or release a loaded line as a guess: the safe response depends on the boat, dock, current, and lines.
What to do first
- Account for everyone. Put on life jackets if you can do so safely. Keep people clear of the gap between the boat and dock, the propeller, and any line under strain. Do not send anyone into the water to push the boat free. Current can exert substantial force, and pushing off with limbs or jumping ashore can cause injury. See the Pennsylvania Fish and Boat Commission’s water-hazard guidance and the Broads Authority’s mooring advice.
- Check for immediate danger. Look for injuries, anyone trapped, hull damage, flooding, fire, and whether current or tide is worsening the situation. After a collision, Transport WA advises checking passengers and making sure there are no leaks; its types of boating emergency guidance is specific to Western Australia.
- Call for help early if safety is at risk. Contact your local emergency service or marine rescue using the channels and number for your location. In Western Australia, Transport WA’s emergency guidance, updated 22 May 2025, says to make a distress call on the listed frequencies, activate an EPIRB or PLB, or call 000 when immediate assistance is required. These details are not universal; follow local instructions.
- Give rescuers clear information. State the vessel’s position, what is happening, and how many people are aboard, then follow the responder’s directions. Transport WA distinguishes Mayday for grave and imminent danger requiring immediate assistance from Pan Pan for an urgent safety message that does not meet that distress threshold. Its marine-radio guidance lists Western Australia’s radio details; use the urgency terms and frequencies applicable where you are.
Why you should not improvise a release
A boat held against a dock may be affected by current, wind, tide, hull shape, propulsion, dock geometry, and the force on its mooring lines. Applying power or releasing a line without understanding those forces can worsen the situation or expose someone to a snapping line, crushing gap, or uncontrolled movement. The official guidance available for general boating emergencies, hazards, and mooring does not establish a universal maneuver for freeing a boat pinned against a dock. If a line is visibly loaded, the boat is being forced into the structure, or damage or flooding is possible, do not attempt a release; get help from marine rescue or a qualified operator.
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When it may be safe to move the boat
Wait until the immediate danger has passed and a qualified person or local responder has assessed the situation. Before moving, the boat needs to be checked for hull or propulsion damage and there must be adequate clearance. Flow and water level can change; mooring guidance emphasizes considering local conditions such as wind, water level, and current. For example, the Broads Authority notes that tidal level at Great Yarmouth can rise and fall by up to 2 metres—a local figure, not a general tide range. See its mooring-up guidance.
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Carry and know how to use appropriate safety equipment before setting out. Transport WA describes a marine radio as essential safety equipment and says a mobile phone is useful as a backup but does not replace one. Its channels and coverage guidance apply to Western Australia; check the rules and rescue contacts for your boating area. Wearable life jackets reduce risk if someone falls in, but they do not make it safe to push a pinned boat free.
Quick Recap
Best Value
- Add Protection Both Boat and Dock: Install the inflatable dock bumper fender on the side of the dock to protect the dock from being hit by boats and protect the boat from damage caused by contact with docks.
- Durable & Reliable Dock Bumper Fender: Constructed from marine grade rotomolded vinyl with sturdy ribs, fearturing soft, tough, UV-resistant, impact-resistant and anti-tear to ensuring long-lasting protection for the boat and dock; The included mounting hardware are made of 304 stainless steel for rust-proof and long-lasting
- Hassle-Free Mounting: Dock bumper fender comes with 304 stainless screws and washers. Provide the convenience of permanently mounting dock bumpers and secure attachment to your dock; No need to adjust fenders each time when docking
- Special Design: Sturdy ribs of the dock fender bumper is durable enough to against impact; The round shape helps guide the boat down into the slip and reduce the rubbing
- Dock Bumper Fender Sizes: The size of the dock fenders is 15.2" x 6" x 4" that fit various docking spaces; The mounting hole is at 6" from the top
Rank #4
- Add Protection Both Boat and Dock: Install the inflatable dock bumper fender on the side of the dock to protect the dock from being hit by boats and protect the boat from damage caused by contact with docks.
- Durable & Reliable Dock Bumper Fender: Constructed from marine grade rotomolded vinyl with sturdy ribs, featuring soft, tough, UV-resistant, impact-resistant and anti-tear to ensuring long-lasting protection for the boat and dock. The included mounting hardware are made of 304 stainless steel for rust-proof and long-lasting.
- Hassle-Free Mounting: Dock bumper fender comes with 304 stainless screws and washers. Provide the convenience of permanently mounting dock bumpers and secure attachment to your dock. No need to adjust fenders each time when docking.
- Special Design: Sturdy ribs of the dock fender bumper is durable enough to against impact. The round shape helps guide the boat down into the slip and reduce the rubbing.
- Dock Bumper Fender Sizes: The size of the dock fenders is 15.2" x 6" x 4" that fit various docking spaces. The mounting hole is at 6" from the top.
Rank #3
- SOFT, HULL-PROTECTING MATERIAL – Made from a lightweight polymer that’s soft to the touch, helping prevent scratches and damage to your boat’s surface.
- DURABLE, WEATHER-RESISTANT BUILD – Engineered to resist UV rays, chalking, splitting, and crushing for long-term performance in harsh marine conditions.
- SEAMLESS ONE-PIECE CONSTRUCTION – Eliminates weak points for added strength and reliability, ensuring dependable dock protection over time.
- LARGE COVERAGE DESIGN (45" x 6" x 4") – Extended length provides superior cushioning along docks, reducing impact damage during mooring.
- MADE IN THE USA WITH LIFETIME GUARANTEE – Crafted for quality and backed by a lifetime guarantee, giving you confidence in lasting value (Part No. 93537-1).
Rank #2
- Durable and Soft Dock Bumpers: The Dock fender is crafted from marine grade soft lightweight inflatable polyvinyl chloride which resistant to UV, fading, tearing, chalking, splitting or crushing, providing stronger impact resistance for boat to dock bumping and ensuring long-term protection
- Superior Protection: Boat dock bumpers provides optimal protection against scrape, nick, dent and damage to your boat, a solution to boat docking in windy day! The horizontal dock fenders bumpers also safeguard the dock side and edge from bumping
- Easy Installation: Dock bumpers comes with pre-drill (3) 5/16 inch holes and mounting hardware for secure and permanent mounting to the docks edge and side
- Soft Design: Marine Dock Bumpers features with strengthening ribs for extra protection, asthetically look and soft on hulls
- Fit Type: The dock bumper fender measures 16.7 Inch, universal fit for boat docks and swim rafts, great for commercial marinas, personal docks and mounting to the side and edge of dock
#1 Best Overall
- NO MORE HANGING BUMPERS EVERY TIME YOU DOCK: Unlike boat fenders you must toss over and retrieve on every arrival, these mount permanently to your dock edge. A continuous barrier protects your hull and dock in any tide or current, ready before you are
- 5MM THICK MARINE-GRADE PVC: Engineered for extreme durability, these dock fenders are made from 5mm high-density PVC with reinforced ribs. UV and corrosion resistant material withstands harsh environments and temperature changes without cracking, ensuring year-round dock protection
- COMPLETE STAINLESS STEEL HARDWARE KIT: Everything you need for installation right out of the box. Each 2-pack comes with 8 premium stainless steel screws and washers. Mount them permanently to dock surfaces without worrying about rust or buying extra hardware. One person can install a full set in about 15-20 minutes with a screwdriver
- PRE-INFLATED & ADJUSTABLE FIRMNESS: Arrives pre-inflated and ready to install out of the box. Prefer a firmer bumper? Top up air in seconds through the standard needle valve with any ball pump (pump not included). Do not over-inflate
- UNIVERSAL FIT & SIZING GUIDE: Measuring exactly 15.4 inches x 6.5 inches x 5.3 inches inflated, these marine bumpers fit on most normal docks. We recommend 2 pieces for docks line under 10 feet, 3-4 pieces for 10-30 feet, 5-6 pieces for 30-50 feet, and 6+ pieces for over 50 feet. Requires a flush dock side - see fit notes below
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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