New Lawn Over Construction Debris: 6 Inches Topsoil Minimum

Post-construction. Builder covered debris with sand. 8 months later, weeds killed with Roundup. Can I lay enriched topsoil (sandy loam + compost) and seed?

Yes, But Depth Is Critical

• Minimum 6 inches settled depth.
• Better: blend good topsoil + leaf compost into top few inches of existing sand.
• Uniform profile = better drainage & rooting.

Shallow layer over sand = perched water table, root restriction.

Invest in depth. Roots will thank you.