Sirius Yachts manufactures it's own range of round bilge blue water steel cruising yachts. Designed by David Thomas, these yachts have a powerful yet sleek style combining an easily driven hull with excellent performance and handling under sail or motor. The yachts combine ocean going range and safety considerations, with features that make them comfortable for coastwise cruising and on-board relaxation. But most of all, the Sirius range provides the security of a steel construction, making them strong enough to bounce off the odd reef as well as stand their ground in the crush of the marina.

The secret of the Sirius form of construction lies partly in the high quality steel used but mostly in the method of hull fabrication. High grade steel is used for vertical hull plating which is wrapped around the longitudinal stringers that run from stem to stern. These hulls have a higher yield and tensile strength than other steel vessels, due to the superior construction materials, and the longitudinal method of framing providing immense strength within a very fair hull.