How does the granularity of marble affect its structural integrity in outdoor tree boxes?

The granularity of marble plays a critical role in determining its structural integrity when used in outdoor tree boxes. Finer-grained marble tends to be denser and less porous, offering superior resistance to weathering, moisture absorption, and freeze-thaw cycles. This makes it ideal for outdoor applications where durability is paramount.

Conversely, coarser-grained marble, while often more visually striking, may exhibit higher porosity and vulnerability to environmental stressors. Over time, this can lead to cracking, erosion, or discoloration, compromising both aesthetics and functionality.

For tree boxes, selecting marble with optimal granularity ensures longevity. Finer grains provide better load-bearing capacity and resistance to mechanical stress, while proper sealing can mitigate potential weaknesses in coarser varieties. Understanding these factors helps in choosing the right marble for durable, weather-resistant outdoor installations.