Blast Zone Inflatables come with a max user limit, a weight-per-user limit, as well as a gross weight limit (combined weight of all players). Sometimes the Gross limit is less than the calculation of max users x max user weight. For example an inflatable may say 6 users at 100 lbs each, but have a max gross weight of 500 lbs. This is because each recommendation is based on different factors. The max user count is based on space, while the others are usually based on structural recommendations. So in the above example, there could be 4 users at 80 lbs, and 2 users at 90 lbs, for a total weight 500 and total count of 6, but is not recommend for 6 users at 100 lbs each.