Hi! This is Jon on behalf of Expert Village. In this video clip, we will be formulating a plan. In the room where our bookshelf is going to go, we have a window and below the window we are going to have our bookshelf in it. Now the width of our unit is going to be the exact same as the width of the window and our height is going to go right up to the bottom of the window. Our overall measurements are 31inches to the bottom of that window and 70 inches is how wide that window is and I've chose a 10 inch depth because most books are less than 10 inches when you set them on a self. Now you will notice that there is some doors down here which we are going to use as a storage area for printer paper or other papers. Now having that 10 inch depth, our paper would have to sit sideways. If we went with a 12 inch depth, it would sit the long way. There would just be way too much room behind those books and they could get pushed back. In addition, it would use a lot of extra lumber when all is said and done. On this unit, we are going to have 8 shelves. There is going to be 3 shelves on each side. There is going to be 1 shelf in the top and there is going to be another shelf behind these doors.