The building is six stories high and made from brick-faced reinforced concrete, with a facade of Indiana limestone on the first two floors.

The portico has four columns made of Tokeen marble from Prince of Wales Island, which is also used for interior trim.

It is one of only eleven state capitols (along with those of Florida, Hawaii, Louisiana, New Mexico, New York, North Dakota, Ohio, Oregon, Tennessee and Virginia) that do not feature a dome.

[6] Outside the building is a replica of the Liberty Bell, of the type given to all states and territories by the federal government in 1950 to help raise support for savings bond drives.

The walls feature the work of early Juneau photographers Lloyd Winter and Percy Pond, and busts of the first two U.S. senators from Alaska, Bob Bartlett and Ernest Gruening.

The executive office doors are made of black birch, with hand carvings depicting Alaskan industry.