On the B2D1DR cabinet with no kick plate, is the shelf inside the door cabinet fixed or adjustable in height with the no roller shelf option? Are there any shelf holes for adjustable shelves inside the doors? If not adjustable, how much of the cabinet is the shelf area versus drawer area. I assume the drawer height is fixed and a constant height subtracted from the total cabinet height and the remainder is the shelf area. If the shelf is fixed, does it evenly split the shelf area height?

Thanks