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SELECTION GUIDE

Lewmar's quick chart to pick winch size by application – genoa, spinnaker and main sheets, halyards and runners – against boat length (masthead rigs) or sail area (fractional rigs).

DocumentLewmar Winch Selection Guide
FormatPDF · 1 page · 2.5 MB
LanguageEnglish
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How to UseSail AreaSelection ChartProducts
Lewmar Winch Selection Guide

How to Use the Chart

  • Cross-reference your boat length overall (masthead rigs) or sail area (fractional rigs) with the application to find the winch size.
  • Lighter shading marks the upper limit of a model. If in doubt, move up a model.
  • Runner and mainsheet winch sizes depend on the purchase system and expected loads; dynamic loads can raise them dramatically.
  • Multihulls have more righting moment than monohulls of the same length, so they need larger winches – ask Lewmar or your rigger. Lewmar will also make recommendations from your deck and sail plans.

Sail Area by Boat Length

Boat LOA Genoa ft² / m² Spinnaker ft² / m² Main ft² / m²
6.1–7.6 m (20–25 ft) 200 / 19 300 / 28 120 / 11
7.6–8.8 m (25–29 ft) 300 / 28 400 / 37 150 / 14
8.8–10.1 m (29–33 ft) 350 / 33 600 / 56 180 / 17
10.1–10.7 m (33–35 ft) 470 / 44 800 / 74 210 / 20
10.7–11.3 m (35–37 ft) 550 / 51 1000 / 93 230 / 21
11.3–11.9 m (37–39 ft) 600 / 56 1200 / 111 260 / 24
11.9–12.5 m (39–41 ft) 750 / 70 1400 / 130 300 / 28
12.8–14.6 m (42–48 ft) 900 / 84 1600 / 149 350 / 33
14.6–16.8 m (48–55 ft) 1500 / 139 3000 / 279 750 / 70
16.8–18.9 m (55–62 ft) 1900 / 177 3800 / 353 875 / 81
18.9–21.6 m (62–71 ft) 2300 / 214 4600 / 427 1000 / 93

Winch Size by Application

Lewmar winch selection chart: winch size by application and boat length

Sizes charted: genoa sheet 7–70, spinnaker sheet 6–70, main sheet 6–70, genoa halyard 6–70, spinnaker halyard 6–70, main halyard 6–70, runners 45–70, across boat lengths from 6.1 m (20 ft) to 25+ m (80+ ft). Read the bars on the chart itself.

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide