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Original Rocna 9lb.


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Rocna 9lb. Galvanized Anchor (ROCORG004GS)

The Rocna 9lb. anchor has the ability to secure vessels up to 23 ft. If you need greater holding power, see the sizing chart in photos.
  • There’s a Rocna or Vulcan anchor to suit just about any vessel – including larger sizes not featured here.
  • To choose the correctly sized Rocna or Vulcan anchor for your boat, follow the chart and instructions below the chart.
  • For multihulls: use the chart as instructed, then select the model one size larger.
To choose the correctly sized Rocna or Vulcan anchor, find your vessel’s length from the column on the left, then track across that row until you find the first column with a displacement (in tons) the same or larger than the displacement of your vessel. The top of the column with the selected displacement indicates the recommended Rocna or Vulcan anchor.

Our anchor sizing is conservative

Unlike other manufacturers, our anchor sizing recommendations are intended to provide an anchor adequate for use in most all conditions. We base our calculations on 50 knots of wind, associated surge, and poor holding bottoms. For more on our philosophy and rationale, please consult our Knowledge Base article on our sizing recommendations. This chart is a guideline only, so if you’d like further information please enquire with us for further advice.
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