[6] Its central bay has maximum dimensions of 74 by 74 feet (23 m × 23 m), and it is topped by a derrick capable of moving 200-ton objects in a 70-foot (21 m) radius.

An elevator provides access to 15 levels in the structure, and a cable tunnel connects the building to control facilities in the space center's East Test Area.

Major problems capable of causing failure of the vehicle were discovered and corrected here.

[3] The new building was so tall that in 1966 when the Saturn V first stage was entering, an observer noted, "Fog and clouds hovered around the top of the 360 foot (110 m) tall test stand most of the day while the 300,000 pounds (140,000 kg) stage was being lifted from its transporter into place inside the stand, said to be the tallest building in Alabama.

[5] It was declared a National Historic Landmark in 1985 for its role in the Saturn V program.