Beautiful house design, the most beautiful 2-storey house model. A beautiful modern house whose main structure is prefabricated. 2-storey pre-engineered steel building. 2-storey pre-engineered steel building. The most beautiful pre-engineered house model. The main structure is pre-engineered steel building frame. The floor panels are made of steel beams and steel purlins, followed by a 7-zem-thick sheet of tole, spread 8 @ 200 iron mesh and poured concrete, then built walls, plastered, putty and painted finished wood. Next, erection of 10 mm thick tempered glass railings, doors, tempered glass windows, decorative ceilings, installation of electrical, water, sanitary equipment ... This is a beautiful home model, Beautiful modern 2-storey house whose main structure is pre-engineered steel house. Beautiful prefabricated house. Drawings of a 2-storey steel-framed house. Design and construction unit: Quoc Cuong Trading Construction Company Limited.