There are many varieties of laying patterns when it comes to tiles and pavers. A popular pattern is a French Pattern or French opus pattern which is often used for travertine tiles and pavers.
The below is the recommended laying pattern for 2 sets of standard French pattern travertine tiles or pavers. One set consists of the following sizes: 1 piece of 8"x16", 2 pieces of 8"x8", 1 piece of 16"x24" and 2 pieces of 16"x16". Showing two sets best illustrates how to lay this French pattern travertine. This design is for 1.2cm thick tiles but it also applies to 3cm thick pavers.