An erectable canopy framework comprising a base frame and a roof frame. The roof frame is operative to support a canopy above the base frame and is removably mountable to the base frame. The base frame includes a plurality of upright support members, a plurality of cross members, each interconnecting adjacent upright support members, and a plurality of mounts disposed on the upright support members. Each mount includes a mount opening and each cross member includes a scissor assembly to permit movement of the base frame between expanded and a collapsed states. The mounts are operative to fasten the cross members to the upright support members. The roof frame includes a plurality of rafters each connectable to a corresponding mount opening. The framework comprises a plurality of rafter fittings each adapted for insertion into a corresponding mount opening and connectable to a corresponding rafter.