Top-Dress Volume & Blend Calculator Top‑Dress Volume & Blend Calculator • Garden GreenTop‑Dress Volume & Blend CalculatorWork out how much sand/soil/compost mix you need to top‑dress or level your lawn.Lawn area (m²) Desired top‑dress depth 5 mm – Very light dusting10 mm – Standard level15 mm – Minor levelling20 mm – Heavy infill/levelCustom (mm) Blend type 80 % Sand / 20 % Compost (USGA style)50 % Sand / 30 % Soil / 20 % Compost60 % Sand / 40 % SoilCustom blend Estimated cost per m³ (AUD) CalculateResults