In this 4th episode of Bar Bending Schedule Advanced Fundamentals I have discussed a very important concept and it is seen to come in various job examination as well as semester exams. In this episode of Bar Bending Schedule Video I have thoroughly explained about the Extra Length required for Cranked Bar with respect to Straight Bar and Derived the Details of Calculation of Formula for that Extra Length. I have also resolved in this Bar Bending Schedule Tutorial regarding Actually What is the Extra Length of Cranked Bar and What Not.