1. A prefabricated greenhouse containing a frame formed by arcs made up of parts, longitudinal girders and end structures with doors and vents, a translucent coating, termination units, while all frame parts have a paint and varnish or other protective coating against corrosion and are made of thin sheet cold-rolled steel profiles having a middle shelf, inclined side walls and outward folds of the edges; profile bends are made in the form of side profile flanges with flanges; in this case, all parts of arcs, longitudinal girders and end structures are overlapped and fastened along the middle and side flanges using screw connections, the arcs are connected to longitudinal girders by screwing the middle flanges of the arc profile to the side flanges of the longitudinal girder; the greenhouse frame is equipped with at least one set of reinforcing struts with a coupler, forming a trapezoid inscribed in the arc without a base; reinforcing braces and screed are made of the same profile as the frame parts; termination nodes are made in the form of segments of the same profile, located at the lower ends of the arcs, transversely to them, fastened to them with a screw connection, all details of arcs, longitudinal girders and end structures are turned by the middle profile shelves into the greenhouse, characterized in that the reinforcing struts with a screed are facing the middle flanges of the profile outward and fixed along them on the side flanges of the profile of the longitudinal girders at the joints with the arcs, for which the cutouts of the inclined side walls and side flanges of the profile are made at the ends of the reinforcing braces and the side flanges of the profile, and the cantilever part of the middle flange of the profile is adjusted�Полезная модель относится к садоводству, к разведению цветов, овощей, ягод и т.п. в парниках и теплицах, а конкретно к конструкциям теплиц. Задачей, на решение которой направлена предлагаемая полезная модель по обоим варианта