Why is it important for the estimator to separate various sizes of masonry units in their estimates?

It is important for the estimator to separate various sizes of masonry units in their estimates because different sizes have different costs and labor needs. Each size of masonry unit may require different types and amounts of materials, which directly influences the overall cost of the project. For instance, larger masonry units may cover more area but can also require more specialized handling and installation techniques, potentially increasing labor costs. Additionally, smaller units could lead to more intricate patterns or designs, necessitating more labor hours for installation. By distinguishing among sizes, estimators can create more accurate and detailed cost estimates, ensuring that all elements of the project are accounted for and budgeted correctly. This careful differentiation helps in determining the overall feasibility and financial planning of the construction project.