What is the average parking space size for boats and RVs?

The average parking space size for boats typically ranges from 20 to 30 feet in length and 8 to 10 feet in width, depending on the boat's size. For RVs, standard parking spaces are usually around 30 to 50 feet long and 10 to 12 feet wide. It's important to consider any additional space needed for maneuvering and access to utilities when parking these vehicles. Local regulations and facility specifications may also affect the exact dimensions.