The size of a louvre refers to the distance from the leading edge to the trailing edge of the louvre. Our shutters are available in 6 different louvre sizes: 32mm, 46mm, 63mm, 76mm, 89mm and 114mm to achieve the look or functional benefit that you require. There is no superior option, it is just a matter of personal preference. We have seen customers choose louvre size based on the size of the window or the look they are trying to achieve, whether that be traditional, modern or contemporary. We will guide you on which size is best for you and your home.