Calacatta Regular Marble, like most natural marble, is primarily designed for indoor use. It is typically used for countertops, accent walls, and floor tiles in interior spaces.
While some people may choose to use marble outdoors, it is generally not recommended. Marble is a porous material that can absorb moisture and be prone to staining, especially in outdoor environments where it may be exposed to harsh weather conditions, UV rays, and various types of outdoor debris. Additionally, marble is susceptible to scratching and can be easily damaged by the elements.
If you are looking for a suitable natural stone for outdoor applications, it is recommended to consider granite or other types of natural stone that are specifically engineered and tested for outdoor use. These stones are typically more resistant to moisture, staining, and the effects of outdoor elements.