PA Flagstone / Bluestone can be applied in a variety of paving patterns and also come in a variety of sizes.  Our team of PA flagstone / bluestone experts are available to help with your selection.

Standard Paving Sizes (Applies to Natural Cleft and Thermal Paving Material)

  • Nominal 12″ x 12″, 12″ x 18″, 12″ x 24″, 12″ x 30″, 12″ x 36″
  • Nominal 18″ x 18″, 18″ x 24″, 18″ x 30″, 18″ x 36″
  • Nominal 24″ x 24″, 24″ x 30″, 24″ x 36″

Random Rectangular

This is the most common pattern used which combines a mixture of standard sizes ranging from nominal 12″ x 12″ to 24″ x 36″. The pattern utilizes a combination of various sizes of squares and rectangles that are provided in 6″ multiples, which make up the layout. It is non-directional (does not tend to “lead” you one way or the other) and works well in most applications.

European Pattern

This pattern utilizes stones of varying widths laid in courses that stack on top of each other. The stones within the courses are placed so that the joints between the stones stagger with those in the courses above and below. This pattern has been commonly used for sidewalks in Europe for centuries. It tends to have a more formal appearance, and with its parallel lines, a more linear look is apparent.


The irregular stone is the broken look with generally no 90 degree corners or straight edges. The resulting pattern is more rustic in appearance. The irregular stone is usually available in earthy shades and tones, although this can vary from time to time.

Running Bond

This pattern is more formal as it’s laid in a brick bond fashion. Therefore the stones would be similar in size and would uniformly alternate joints from one course to the other.

Diamond Set

This pattern is one of the most formal methods of laying flagstone. Stones of similar size are laid 45 degrees to the edges of the area. This pattern requires additional stone so it can be diagonally cut at all the perimeters.

Semi-Random Rectangular

This pattern is a combination of square, rectangular and diagonally cut stones. The design was popular in the early 1900’s, and is very unusual in appearance.