As no hole is required for welding, hence no reduction of area. So structural members are more effective in taking the load.In welding filler plates, gusseted plates, connecting angles etc, are not used, which leads to reduced overall weight of the structure.Welded joints are more economical as less labor and less material is required.The efficiency of welded joint is more than that of the riveted joint.The welded joints look better than the bulky riveted/butted joints.The speed of fabrication is faster in comparison with the riveted joints.Complete rigid joints can be provided with welding process.The alternation and addition to the existing structure is easy.No noise is produced during the welding process as in the case of riveting.The welding process requires less work space in comparison to riveting.Any space of joint can be made with ease.