When it comes to purchasing a product that is virtually guaranteed to withstand the rigors of everyday life and the onslaught of natural elements, there is perhaps no better choice than marble or natural stone products. This is especially true when it comes to windowsills and door thresholds, which are often exposed to the worst that both nature and the daily human routine have to offer. Unlike their wooden counterparts, which tend to be far more common in most homes, marble or natural stone windowsills and thresholds won’t buckle, warp, and split when exposed to moisture or the elements.