The ribbed, square, and rectangular structures have a wide range of applications in the construction industry, such as the construction of shelters, roofs, parking structures, roof and canopy grids, supports, mezzanines for shops and warehouses, frameworks for building facades, frameworks for false ceilings, roof trusses, bases for tile roofs, fixed doors for houses and windows, residential fences, false casings, fences and gates, space partition railings, grids and panels for protection, storage systems, agricultural cultivations, etc.