The Clean, Coarse Standard. Our Concrete Sand is a washed, coarse aggregate essential for masonry and hardscaping. Unlike masonry sand, concrete sand has larger particles, allowing for better drainage and structural integrity when mixed or used as a base. It is a versatile “workhorse” material for any job site. Best For: Mixing concrete, the bedding layer for pavers (screeding), and pipe bedding. Key Feature: Washed and free of silt to ensure proper drainage and bond strength.