2026 Tideline 365 Offshore

The Tideline 365 Offshore is a 36-foot fiberglass catamaran built for serious offshore performance. Twin Mercury V10 Verado engines, each producing 425 horsepower, deliver a cruising speed of 30 knots and a range of 630 miles. The catamaran hull design prioritizes stability and efficiency, while joystick control enables precise maneuvering. An electric windlass handles anchoring operations.

This boat is constructed in North Carolina using a vacuum infusion process that combines composite materials with high-quality hardware and resin throughout. The fully composite build eliminates wood and its associated maintenance concerns, and the design focuses on seakeeping and handling in rough conditions. Real-world performance data shows the boat running between 26 and 58 mph depending on throttle position, with fuel economy ranging from 1.58 to 0.75 miles per gallon at various RPM settings.

The 365 Offshore is engineered as a platform for extended ventures and demanding conditions. Its construction philosophy emphasizes durability and reliability in actual offshore use rather than dock comfort, making it suited for anglers and boaters who prioritize capability over luxury.