An elevatable platform system for mounting on a vehicle having an elevatable platform elevatable by a collapsible support structure. The support structure is adapted to move the elevatable platform between a lowered position in which the elevatable platform is positioned at a height proximate to or below the height of the vehicle and an elevated position in which the elevatable platform is elevated above the vehicle. Support legs integrated into the support structure can be deployed from the support structure when the elevatable platform is elevated to further stabilize the elevated platform.