Here details precast u drain The sizes of U-Drain ranging from 600mm to 3650mm width and are of various heights. All U-Drains are standard length of 1m. SPC U-Drains are made from high strength concrete. including close turfing , h.max 300mm. It is generally represented for each type of R.C.C work. With the help of bar bending schedule the requirement of different length and sizes of bars may be known and can be arranged and bent-up during the time of construction for more details download this file.