Starboard SUP US Box 16" Fin Box – Center-Entry, Rounded Edge for Hard SUP Boards
Starboard SUP US Box 16" (≈ 40.6 cm) Fin Box is a premium replacement part for hard (non-inflatable) paddleboards. Built with rounded side edges and center-entry system, this fin box makes it easy to install and adjust your fin while ensuring a strong and lasting connection.
Why this model?
A perfect solution if your current fin box is worn out, cracked, or broken.
Longer 16" design provides additional strength and durability for demanding paddlers.
Center-entry installation keeps fin adjustments quick and straightforward.
Made by Starboard – the world’s leading SUP brand, trusted for quality and innovation.
Compatible with US Box system, this fin box lets you use a wide range of fins, so you can customize your board for speed, stability, or maneuverability. Whether you’re repairing your favorite board or shaping a brand-new one, this is the same style of box Starboard uses in their own world-class SUPs.
Strong, versatile, and built to last – exactly what you’d expect from Starboard.
