Texas Deck
On some large land rigs with 38 foot substructures, most offshore jack-ups and even semi-submersibles used in shallow water have a deck below the rotary table and rig floor where workers can access the BOP stack. This deck is called 'Texas Deck' or 'Texas Floor'. This deck is suspended from the cantilever by adjustable cables and is accessed from the main deck by semipermanent stairwell. Texas deck is used primarily for installing the wellhead and nippling the BOP stack up and down. Height of Texas Deck can be adjusted in most designs as they are often hung from overlying substructure with cables.