Fenders for Boats and Inflatable Boats

A fender is not a simple cosmetic accessory; it is the first line of defense between the hull and the rough edges of the dock. Anyone who spends time on a boat knows that incorrect sizing exposes the hull to costly and frustrating damage. It is not just about appearance; it is about correctly distributing pressure during docking, preventing the dock edge from exceeding the holding capacity of the plastic material.

At Nautiba we analyze every request by evaluating the vessel's displacement and the typical sea conditions you navigate in. The technical support we offer is designed precisely for this: to move beyond purchases made by eye and focus on construction characteristics that match the boat's size. When preparing to dock, the airtight integrity of the inflation valve and the UV resistance of the material become the real indicators of how long you can count on that protection.

Our routine includes checking the actual availability of each item before confirming the order. If you have doubts about the compatibility between a fender type and the rub rail profile or your inflatable boat's configuration, contact us. We will work through the specifications together to make sure the selected item is correct for your specific use, minimizing the risk of errors.

Experience at the dock teaches that an undersized fender risks compressing completely flat under the boat's weight. This cancels the cushioning effect and transmits the impact directly to the hull. Always check the internal pressure; an over-inflated fender becomes rigid and loses its effectiveness, while an under-inflated one does not provide adequate protection.

Selection and maintenance criteria for fenders

• Always verify that the fender volume is proportional to the boat's displacement to prevent complete compression on impact.
• Prefer UV-resistant materials to prevent premature yellowing and hardening of the surface under prolonged sun exposure.
• Make sure the inflation valve is easily accessible and robust, as it is the point where pressure integrity is maintained over time.
• Clean the outer surface periodically to remove salt and dirt deposits that can act as abrasives against the boat's gelcoat.
• If you use fender covers, make sure they are made of fabrics that do not retain moisture or debris, protecting the hull finish.

How do I choose the correct size?

Size depends on the vessel's displacement and freeboard height. As a general rule, the fender must have a sufficient diameter to keep the hull away from the dock even with moderate rolling.

Is a cylindrical or spherical fender better?

Cylindrical models are ideal for use along the hull side during docking or alongside, while spherical models offer superior protection at areas of greatest curvature or for bow protection.

How inflated should fenders be?

The fender should feel yielding to the touch but firm. If the pressure is excessive, the material loses its ability to absorb kinetic energy, making the cushioning effect useless during approach.

How often should they be checked?

A visual check of pressure and valve wear should be carried out at every outing. If you notice surface cracks or a constant pressure loss, it is time to consider replacing the component.