Cobblestones were largely replaced by quarried granite setts (also known as Belgian block) in the nineteenth century. The word cobblestone is often used to describe such treatment. Setts were relatively even and roughly rectangular stones that were laid in regular patterns. They gave a smoother ride for carts than cobbles, although in heavily used sections, such as in yards and the like, the usual practice was to replace the setts by parallel granite slabs set apart by the standard axle length of the time.