1- Angular sections These sections are divided into two categories: angled sections with equal angles and bases with equal dimensions, angled sections with unequal angles and bases with different dimensions. Angled sections are used in the construction of roof trusses. Corners and studs are among the angular sections. corner The corner looks like an English L. And its cross-section is placed in the form of two perpendicular sides, and it has the task of connecting two metal parts to each other. It is used for bearing beams, making columns, making trusses, making different types of frames, different column bases, stairs, masts, making caps and light roofs, making gables, etc. individually or in combination. Stud The appearance of the stud is similar to the English letter U, and the cross section of the stud consists of one horizontal body and two vertical wings. Studs are also divided into 2 mesh and simple categories in terms of the steel sheet used. From simple studs in the construction of walls for warehouses, workshops, construction of light roofs, as beams, construction of door and window frames, construction of vehicle frames, construction of trailer walls and roofs, construction of fences, bridge trusses or protective rails, in the construction of marine equipment and studs Grids are also used in the construction of steel shelves and steel-style structures.
2- Can-shaped sections