Abstract: A self-sustaining shelf system is provided that comprises a board, with two faces and one thickness, at least two mounting hardware and two anchoring elements and fixing elements to a supporting wall. Each mounting hardware comprises two side walls, with a separation space between them, and a bottom wall. The side walls of each support element define a substantially rectangular groove with dimensions substantially equal to the thickness of the board to embrace it in a substantially perpendicular direction, with a deviation of between 0° and 5°, extending over the faces of said board. In a particularly preferred embodiment, at least one of the mounting hardware of the self-supporting shelf system includes an insertion-mounting and ratchet mechanism made up of four elements that, on the one hand, allow the board to be inserted into the groove of each hardware, up to the back wall, and, on the other hand, they make it possible to anchor and immobilize the board to prevent its unwanted detachment.

Abstract: A buildable, collapsible and lightweight screen comprising a frame constructed with at least two longitudinal profiles, at least two transverse profiles, having hollow extruded profiles and which include at least one inner groove which runs along one side, in a longitudinal direction. Each of said profiles, one or more panels of sheet material are confined within said frame along said inside groove, and connectors that align and fasten the longitudinal and transverse profiles by fasteners and connectors which act as intermediaries to avoid direct contact between these profiles. A method of assembling an adjustable frame assembly is also disclosed.

Abstract: A buildable, collapsible and lightweight screen comprising a frame constructed with at least two longitudinal profiles, at least two transverse profiles, hollow extruded profiles and which include at least one inner groove which runs along one side, in a longitudinal direction. Each of said profiles, one or more panels of sheet material are confined within said frame along said inside groove, and connectors that align and fasten the longitudinal and transverse profiles by fasteners, connectors which act as intermediaries to avoid direct contact between these profiles.