Google knows it, and we knows it to.
We see the odd person talking about long boarding or enquiring for a long board. We suggest if you are after a long board perhaps a hardware store such as Wickes or BNQ may be better suited to your demands.
We used several long boards or pieces of wood in the construction of our indoor skatepark.
A longboard is a longer variant of a skateboard. It is commonly used for cruising, downhill racing, slalom racing, sliding, and or transport.
Longboarding is the act of riding on a longboard skateboard. A longboard is greater in size (both length and width) than its smaller counterpart, the skateboard.