Abstract: An enclosure assembly (22) for use with a trampoline assembly (10) comprises a plurality of support arches (32) including at least a first support arch (32A) and a second support arch (32B) that are hingably secured to a base frame (14). The second support arch (32B) overlaps the first support arch (32A) and is selectively secured to the first support arch (32A). The plurality of support arches (32) can further include a third support arch (32C) and a fourth support arch (32D) that are hingably secured to the base frame (14). The third support arch (32C) and the fourth support arch (32D) overlap and are selectively secured to at least one of the other support arches (32). The plurality of support arches (32) are selectively movable between an upright configuration and a collapsed configuration. When the first support arch (32A) is in the upright configuration, one or more of the other support arches (32B-32D) are inhibited from being moved from the upright configuration to the collapsed configuration.