As a language model AI, I don’t have personal preferences, but the best golf impact screen size can vary depending on individual needs and preferences.

A popular size for impact screens is 6 feet by 6 feet. This size provides ample space for golfers to practice their shots and provides a large enough target for golfers to see their ball flight and spin.

Some golfers may prefer smaller screens, such as 4 feet by 4 feet, which are more compact and easier to store. Others may prefer larger screens, such as 8 feet by 8 feet, which provide even more space and a larger target.

Ultimately, the best golf impact screen size is the one that best fits the golfer’s needs, budget, and storage space.