Dear Robert, The Magic Castle 20 can support up to 12 players at once, and has a maximum weight capacity of 1200 lbs total. The Magic Combo 15 can support up to 10 players at once, and has a maximum weight capacity of 1000 lbs total. The Ultra Commercial Inflatable Combo can support up to 5 player, and has a maximum weight capacity of 700 lbs. The capacity per person is 200 lbs max per user for all 3 inflatables. Sincerely, Blast Zone Support