Mason Sand is a finer crushed sand with more uniform granules than concrete sand and has been screened and washed. It is the most versatile sand in terms of applications. Works well as a joint sand between pavers and other narrow joints. It is used in mixed concrete and for block and brick mortar. The simplest way to think about masonry sand is as a middle ground between concrete sand and white sand. It is finer than the former while being cheaper than the latter. As such, it is commonly considered the most versatile type of sand, and suitable for nearly all projects that do not call for a specific type of sand exclusively.