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Gravel-Lok Coverage Calculator

Find out exactly how much Gravel-Lok you need for your project

Project Area (SF)
Installation Method
Results for —
Select Thickness

Tip: minimum depth should be at least 3× your stone size (e.g. ½" stones → minimum 1.5" depth).

Gravel-Lok Mix
—
gallons needed
Roll Coat
—
gallons (90 SF/gal)
Total in Gallons
—
mix + roll coat
💡 Tips:
  • Stone selection: Use washed and cleaned angular stones — angular edges interlock better for durability, and clean stones ensure proper bonding.
  • Minimum depth: Depth should be at least 3× your stone size (e.g. ½" stones → 1.5" minimum depth).
  • Light-colored stones? Use Clear formula — it contains UV additives and won't discolor your stones.
  • Mix ratio: Do not exceed 20–24 oz of liquid per 5-gallon bucket of stones (~50 lbs). Too much liquid causes foaming.
  • 🌡️ Temperature: Install only when temperatures will remain between 50°F and 90°F for at least 24 hours after application to ensure proper curing.
  • ⚠️ Installing over existing concrete? Add a roll coat to the concrete and while it is wet add the mixed Gravel-Lok with gravel to help it stick to the concrete.

Coverage rates — Mix: 1" = 37.2 SF/gal · 1.5" = 24.8 SF/gal · 2" = 18.6 SF/gal · Roll coat = 90 SF/gal  |  Pour: 1 light pour = 19 SF/gal · 2 light pours = 14 SF/gal.

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