When comparing half blocks to standard blocks, what is a key characteristic?

Half blocks are versatile and can be utilized in multiple dimensions, making them a practical choice in various masonry projects. Their size allows for flexible applications, such as filling in gaps or assisting with alignment in masonry walls without compromising structural integrity. This adaptability is particularly beneficial during construction when certain dimensions are required to maintain a level or fit around existing structures.

In contrast, the other options do not accurately describe the characteristics or uses of half blocks compared to standard blocks. Half blocks are not universally heavier; they are simply a smaller version of standard blocks. Additionally, standard blocks are not limited to column use; they are commonly employed in a variety of masonry applications, including walls and foundations. Lastly, half blocks do exist; they serve specific purposes in masonry and are an essential component in building practices.