The industry standard for Travertine Pavers thickness is 1.25″ (3 cm).

Travertine pavers have higher PSI ratings compared to brick pavers and cement pavers and this thickness is optimal.

Same thickness can be used for driveways as well as pool decks and patios. Important point to consider when installing travertine pavers for driveways is the size of the travertine pavers. We usually do not suggest any size larger than the 6×12 travertine pavers. That being said there are numerous examples of projects utilizing larger sizes for driveways without any issues.