Our C-33 Sand is a certified washed sand that meets ASTM C-33 specifications, verified by our supplier’s quality control team. Because it meets this standard, it is suitable for use in septic system drainfield installations that require certified sand, and we can provide documentation confirming material specifications for contractors and inspectors who need it.

Beyond septic applications, ASTM C-33 sand is a versatile product that works well for:

• Septic system drainfield installations (meets ASTM C-33 spec, documentation available)
• Concrete mixing and masonry applications
• Base layer under pavers and flagstone
• Pool base and surround applications
• Pipe bedding
• Leveling applications
• Chicken Grit Safe! – For those who are asking

For questions about whether C-33 sand is the right product for your project, call us at 509-235-4511.

Sold by the ton. One cubic yard is approximately 1.1 tons, though this may vary by product and application. Not sure how much you need? Call us at 509-235-4511 and we will help you figure it out. Available for pickup at our Cheney, WA yard or bulk delivery across the greater Spokane area.