Abstract: A door assembly is available for a roadside delivery container, such as a newspaper box or open-ended mailbox. The roadside container has a container interior and an open container end to facilitate access to the container interior. The door assembly permits selective covering of the open container end. The door assembly includes a door frame having a frame opening therein, a container fastener, and a frame opening cover. The container fastener is pivotally mounted to the door frame. The container fastener is configured for pivotally attaching the door frame to the delivery container. The frame opening cover is pivotally mounted to the door frame and is configured for selectably covering the frame opening. Advantageously, the frame opening cover has a bifold design, making closing thereof possible under newspaper placement conditions that would have otherwise prevented closure.