C-33 Sand from Rosati Materials, also known as Concrete Sand, is a high-quality, washed sand used in construction and landscaping projects throughout Western Massachusetts, including Westfield, Agawam, and Holyoke. Manufactured to meet ASTM C-33 specifications, this coarse-grain sand is ideal for ready-mix concrete, masonry applications, paver bases, and drainage systems. Its clean, consistent composition allows for strong bonding with cement and aggregate, resulting in durable, long-lasting concrete mixes. Beyond concrete work, C-33 Sand is commonly used for bedding stone, leveling under pavers, and creating stable walkways and patios. Contractors and homeowners across Hampden County trust Rosati Materials for consistent quality, excellent compaction, and versatile performance. Whether you’re pouring concrete, installing pavers, or preparing a solid base, C-33 Concrete Sand delivers dependable results built to withstand New England conditions.