Choosing the right size soccer goal depends on the age group of the players and the level of play. Here’s a guide to help you select the appropriate size:  Under 6 - Under 8 (U6-U8): 4'x6' Under 9 - Under 10 (U9-U10): 6.5'x18x5' Under 11 - Under 12 (U11-U12): 7'x21' Under 13 and up (U13+): 8'x24'