Trim Tab Sizing Calculator
Determine proper trim tab dimensions for your vessel
Recommended Trim Tabs
Tab Size (each)
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Span (width)
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Chord (depth)
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Total Lift Area
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Actuator Type
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Recommended System
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Standard Trim Tab Sizes
| Boat Length | Tab Size | Weight Range |
|---|---|---|
| 14-18 ft | 9" x 9" | 1,500-3,000 lb |
| 17-22 ft | 9" x 12" | 2,500-4,500 lb |
| 20-25 ft | 12" x 12" | 4,000-7,000 lb |
| 24-30 ft | 12" x 18" | 6,000-12,000 lb |
| 28-35 ft | 12" x 24" | 10,000-18,000 lb |
| 34-42 ft | 12" x 30" | 15,000-28,000 lb |
| 40-50+ ft | 12" x 36" | 25,000+ lb |
Trim Tab Benefits & Tips
Benefits
Faster time to plane - reduces bow rise
Improved fuel efficiency at cruise
Correct listing from uneven loads
Better ride in rough water
Installation Tips
Mount tabs at transom bottom, one inch up from hull bottom
Position inboard of prop wash zone
Electric systems easier to install than hydraulic