The building cost $2.5 million ($  as of ), of which the federal government paid 45 percent through the Public Works Administration. Upon completion, the new capitol was wide, long, and tall (50 by 122 by 51 m) and contained of usable space. The exterior was finished with Vermont marble. The lobby, rotunda, and halls were lined with a polished rose travertine stone quarried in Montana. The rotunda's staircases and floor used Phenix Napoleon Grey Marble quarried in Phenix, Missouri, and had borders of Radio Black marble that, like the exterior stone, is from Vermont. There are 158 names of notable Oregonians inscribed on the walls of the legislative chambers; of these, only six are women. The original cost estimate for the building was $3.5 million ($  as of ), but the state legislature only appropriated $2.5 million; committee rooms were subsequently removed from the plans. These rooms were added in 1977 as part of a $12.5 million ($  as of ) expansion project to add new wings containing legislative offices, hearing rooms, support services, a first floor galleria, and underground parking. This addition doubled the space of the capitol building. In 2002, the wings were remodeled at a cost of $1.3 million ($  as of ) to upgrade items such as antiquated wiring and to install new carpeting and lighting.