Port Saint Laurent Marble is known for its strength and durability, making it less prone to cracking compared to some other types of marble. However, it is important to note that marble is a natural stone and can still crack under certain circumstances. Factors such as improper installation, heavy impact, or structural issues can contribute to cracking. Additionally, the overall quality of the specific slab of Port Saint Laurent Marble can also affect its susceptibility to cracking. It is always recommended to handle and maintain marble floors with care to prevent any potential damage.