Can my ten and a half foot long longboard be used as a stand up paddle board?

Many long boards can be used as a Stand Up Paddle board, and many of them are becoming more flexible and can also be used as a sit-on-top kayak when a seat is added.

Usually, SUP boards are 11 - 12 feet long. The weight cut-off is 170 pounds - use 11 foot board if you are under 170 - use 12 foot board if you are over. However, lighter weigh people can use shorter boards. The water conditions also need to be considered - surf, flat water, rough water.

If you can balance well on the board, without the tail dragging or the nose dipping, the board will probably work for you.