The dome is 143 feet (44 m) tall, has a diameter of 536 feet (163 m), and covers an area of 5.1 acres (21,000 m2). It is a geodesic dome constructed with 781 Douglas Fir beams and 108.5 miles (174.6 km) of fir decking. The dome is designed to support snow up to 60 pounds per square foot (2.9 kPa) and withstand 80-mile-per-hour (130 km/h) winds. It has a permanent seating capacity of 8,000, though the building can hold as many as 16,000 people (like 16,734 people for baseball games).