Abstract: A recreation vehicle has forward and rearward ends, sides, and a roof. At least one of the laterally spaced sides is a functional side with a rectangular vertical side aperture. A slide-out room has forward and rearward ends, a floor, a ceiling, sides, and a roof. Supports are extendable through the side aperture and reciprocably couple the slide-out room and the recreational vehicle. A roof aperture of a size to permit movement of a user there through is formed in the roof of the slide-out room. A hatch covers the roof aperture.

Abstract: A vehicle has a roof with a top and a floor with a connecting peripheral wall. The roof has a rearward section with small openings and a forward section with one large opening. A deck has an upper and a lower surface. The deck is located above the rearward section of the roof. Support members are vertically oriented and extend through the small openings in the roof. Each support member has a top and a bottom with each bottom coupled to the floor. Each top is coupled to the deck. The support members have a length to hold the entire deck a fixed distance above the top of the roof. The cross sectional area of each support member is a percentage of the cross sectional area of each small opening.