Metal Beam Crash Barrier (providing and erecting a "w" metal beam crash barrier comprising of 3mm thick corrugated sheet metal beam rail, 70 cm above road ground level, fixed on ISMC series channel vertical post, 150x75x5 mm spaced 2 m center to center, 1.8 high, 1.1 m below groundroad, all steel parts and fitments to be galvanized by hot dip process, all fittings to conform to IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150x75x5 mm, 330 mm long.