One would expect that just like all the other parts of a paddleboard, a fin too, is universal and comes with all the SUPs that are available in the market.
Paddleboard fins are not universal because they are accompanied by different fin boxes. Each one has 0-5 fins, depending on use and size. There are snap in, dual tab, and us fin box.
For the uninitiated, fin boxes, as the name itself suggests, are small built-in slots of the surface of the paddleboards that are meant to store the fin of the SUP when not in use.
Depending on the size of the paddleboard, and the purpose you are using it for, you can preserve as many fins inside the box as you want and swap them from time to time. However, one thing that you should bear in mind is that the size and space of the fin box should correspond with the dimensions of the fins and most importantly, should be equipped to fit multiple fins inside it.
There are essentially four different types of fin boxes popular in the market and in the following segment, we are going to make you familiar with all of their chief characteristics.
- Slide-in fin box
You are most likely to come across a slide-in fin box in an inflatable paddleboard. In these boxes, you are supposed to slide in the fins and keep them intact in their assigned places with pegs. Although the fins that have standard shapes and sizes can be easily accommodated in these boxes, they don’t really have a wide array of fins that can be tagged as compatible with them. Another drawback of the slide-in fin boxes is that they are made of plastic and therefore, aren’t very durable.
- US fin box
The US fin box is hailed as the most efficacious and high-quality fin box amongst all the other recourses that we will be outlining in this list. Firstly, regardless of the fin, you are using for your paddleboard, chances are, you will find it attuned with the fin box. Secondly, the fins are secured inside the box with nut and bolt hence, making certain that they will stay put at their place no matter what!
- Snap-in lever fin box
As evident from the denomination, the snap-in level fin box is more like a holder that will safely clasp the fin in an upright position. All you will have to do is simply snap the fin in its place and keep it attached to the box with a small lever. Much like its slide-in counterpart, the snap-in level fin box also has limited options for its user.
- Dual tab fin box
Quite interestingly, the dual tab fin box is meant to work for fins that have two tabs and can smoothly fit into the box. More often than not, the dual tab fin box is capitalized on to store side fins. But, the good news is, you are bound to come across innumerable alternatives in terms of shapes and sizes for this box.