Abstract: A dock shelter for effecting a seal between the rear end of a truck van and a building to keep out wind and rain comprises a frame having sides and a roof for enclosing the building opening. Flexible, but substantially self-sustaining, foam-filled sealing panels extend toward each other from the left and right inside of a substantially rigid frame to define an opening which is somewhat smaller than the expected width of the van. A partially foam-filled curtain also extends from the top of the frame and behind the left and right side panels. The top curtain has vertically extending stays which augment effecting a seal with the top of the van. The top curtain and the side panels cooperate to maintain the seal when the top corners of the van approach the building opening. The lower ends of the side panels are deflected into sealing relationship with specially shaped flexible foam filler blocks which are located inside of and near the bottom of the frame.