Sea Ray Sundancer 455 – The Ultimate 45‑Foot Cruiser for Comfort & Performance Versatile Dimensions & Layout The Sea Ray Sundancer 455 features a beam of approximately 13′2″ (4.27 m) and a draft around 3′4″ (1.02 m) depending on gear selection and loading. With these dimensions, the hull delivers a well‑balanced profile: roomy enough below deck for comfortable living, yet nimble enough for tighter marina berths or quick turn‑around passages. Below deck the accommodation is generous and well thought out.