A container movable between a flat configuration and a box configuration is disclosed. The container comprises a first side panel hingedly coupled to a first side portion, a second side panel hingedly coupled to a second side portion, a separation panel, and a bottom panel. The separation panel is hingedly coupled to the first side portion and to the second side portion. When the container is in the box configuration, the bottom panel and the separation panel face each other, and the first side panel and the second side panel face each other. The container is further movable between the box configuration and a formed configuration. When the container is in the formed configuration, the first side portion and the first side panel face each other, the second side portion and the second side panel face each other, and the separation panel and the bottom panel are substantially orthogonal.

A packaging for roof window installation products it disclosed. It packaging comprises a folded sheet member having a bottom section defining a first plane, four side sections and a top section, said sections together defining an inner room and first outer dimensions of the packaging, in the assembled state. The packaging comprises at least one flange and at least one handle, each being movable between a first position, where it extends substantially in parallel with at least one of said sections and adjacent to said at least one section, and a second position, where it extends beyond the first outer dimensions. Said at least one flange is configured for engagement with the roof structure when in the second position, and said handle is configured for carrying the packaging when in the second position. A use of a packaging for window installation products is also disclosed.