The number printed in your boat's model name is not always the number a cover manufacturer wants. A useful fit check starts with actual centerline length, maximum beam, boat style, and the things sticking up above the deck.
Two measurements to take first
- Centerline length: measure straight along the boat from the foremost point you need covered to the rearmost point. Do not run the tape up over the windshield unless a particular cover maker instructs you to.
- Beam width: measure straight across the widest part of the vessel. Do not substitute the trailer width.
- Obstructions and configuration: note rails, consoles, elevated seats, windshields, towers, motors, boarding ladders, and other additions that might affect the fit.
Why the right length can still be the wrong cover
A pontoon, a center-console boat, and a runabout can share similar length and beam dimensions while having very different shapes above the waterline. Covers are often organized by boat style as well as dimensions. For a semi-custom cover, verify the vendor's fit category and exact sizing chart before buying.
If your boat has a tower, unusual rails, custom seating, or a motor arrangement that differs from the listed fit, contact the cover manufacturer before ordering. Guessing from nominal boat length can be expensive.
Storage cover or trailering cover?
These are not necessarily interchangeable. A cover suitable for storage in a yard may not be approved for highway towing. Only trailer with a cover if the maker explicitly identifies that exact cover as trailerable and you use the required attachment and support methods.
Actual centerline length ✓ Maximum beam ✓ Boat type ✓ Raised equipment ✓ Storage or trailering use ✓ Exact model's fit chart ✓
Where to verify the details
The measurement approach here follows West Marine's published buying information. The manufacturer's chart for the exact product always takes priority over a general article.