The use of two differently sized paver provide a wealth of options, increasing hugely as additional sizes are added to the mix.
The number of possible layouts with two paver sizes depends on whether or not the pavers share a dimension; they may have different lengths but equal widths, for instance.
When the two pavers do not share a dimension, what’s called a ‘Dutch pattern’ is considered effective. However, there is some disagreement over whether a Dutch pattern must use only square pavers, or if it can use both square and rectangular pavers.
Naturally, using three sizes of paver offers up a huge number of possible patterns. Laying down rows of alternated pavers is a very popular approach, especially since shifting the next row along to a random degree creates an overall random effect – and one that is relatively easy to arrange. This random quality has made it a very popular layout.
The common name for the above three-paver random effect is the ‘broken bond’, which, it is generally accepted, must feature pavers of at least three different sizes; there is in theory no upper limit to how many different sized pavers can be used.
While the broken bond can arranged longitudinally, on most highways the transverse layout us used, because it is superior at coping with the pressure of traffic.
The transverse broken bond is popular for natural stone paving, and can be sued with Global Stone Paving’s Old Rectory Paving and Cobble products.
One of the other main three-paver patterns is the Tudor, so named for reasons unknown. The first flagstone in this layout is a square; the second is half the width but shares one dimension with the first (essentially the first one halved); while the third flagstone is the same as the second flagstone, but halved. This creates a pleasing diagonal effect but one which, it is generally agreed, is limited to the 600×600/600×300/300x300mm format.