The thickness of Bath Stone limestone slabs used in the United Kingdom can vary, depending on the purpose and specifications of the project. However, typical thicknesses range from 20mm (0.79 inches) to 50mm (1.97 inches) for interior flooring and wall cladding applications. For exterior paving and construction use, the thickness can vary from 40mm (1.57 inches) to 100mm (3.94 inches) or more. Its worth noting that these are general ranges and specific projects may have unique requirements.