Accurate Pavers can take most any of these paver patterns and install them on a 45 degree angle. It is simply a matter of preference. When architects or builders specify the pattern that they want to use, they will say something like this: Herringbone Diagonal bond or three piece random diagonal bond. Diagonal is most always on a 45 degree angle. If another angle is requested, those specifics need to be communicated clearly to the sales staff.