Numerous shipyards exist throughout the Inner Sphere, providing facilities for constructing and repairing DropShips, JumpShips, WarShips, and other naval vessels. Generally, shipyards are located within large groups of stations that include ship-part factories, habitats for workers, and cargo stations for parts and raw materials. Most station groups also contain some type of defense station, though some still rely on the unwritten prohibition against destroying lostech to protect them from attack. After the Jihad though, many no longer trust such "honor" in their enemies.
         Shipyards can be divided into two main categories -   unpressurized yards and pressurized yards. The designs of individual yards within these two broad categories can vary greatly. Unpressurized yards are by far the most common type of shipyard. These facilities consist of little more than skeletal frames. Because they do not need to maintain pressurized atmospheres, the size of unpressurized stations is virtually unlimited, but very few survivors of the Jihad are larger than 300,000 tons and it is virtually unheard of in the Human Sphere to have capacities of more than 600,000 tons.
         This is an example of the largest yard class in use in the Human Sphere. ComStar's Titan Yards, Ioto Galactic's Alarian MegaPlex, and the Raven Alliance's Quatre Belle Alpha are the only known complexes with greater capacities than these massive stations.