The stadium was designed by Populous, which was known at the time as the Sport Venue Event Division of Hellmuth, Obata & Kassabaum (HOK).
Indianapolis-based Huber, Hunt & Nichols was the construction manager.
The stadium is a concrete and glass structure, using precast concrete and cast in-place for the upper concourse.
Natural stone accents were used at the base of the stadium.
The construction of the concrete superstructure took more than 6,000 truckloads of concrete, or the equivalent of 60,000 cubic yards (46,000 m³), with a weight of approximately 235 million pounds (107,000,000 kg).

The playing surface is a Kentucky Bluegrass irrigated field, with a sand-soil root zone and an underground heating system that involves nine boilers and 40 miles (64 km) of underground piping.
The heating system prevents the field from freezing and extends the growing season of the turf.
Although it was designed for football, the playing surface was built large enough to accommodate international soccer matches.

The eastern seating section is the home of the Dawg Pound, a section of bleacher seats.
It was designed as a successor to the original Dawg Pound at Cleveland Stadium, the bleacher section also located in the east end zone.
When FirstEnergy Stadium opened in 1999, the Dawg Pound was a 10,644, double-deck area.
During stadium renovations in 2014, the upper level of the Dawg Pound was reduced to make way for a new, larger scoreboard, auxiliary scoreboard, and additional fan areas, and the bleacher seating in the upper level was replaced with chairbacks.
The stadium was designed by Populous, which was known at the time as the Sport Venue Event Division of Hellmuth, Obata & Kassabaum (HOK). Indianapolis-based Huber, Hunt & Nichols was the construction manager. The stadium is a concrete and glass structure, using precast concrete and cast in-place for the upper concourse. Natural stone accents were used at the base of the stadium. The construction of the concrete superstructure took more than 6,000 truckloads of concrete, or the equivalent of 60,000 cubic yards (46,000 m³), with a weight of approximately 235 million pounds (107,000,000 kg).
The playing surface is a Kentucky Bluegrass irrigated field, with a sand-soil root zone and an underground heating system that involves nine boilers and 40 miles (64 km) of underground piping. The heating system prevents the field from freezing and extends the growing season of the turf. Although it was designed for football, the playing surface was built large enough to accommodate international soccer matches.
The eastern seating section is the home of the Dawg Pound, a section of bleacher seats. It was designed as a successor to the original Dawg Pound at Cleveland Stadium, the bleacher section also located in the east end zone. When FirstEnergy Stadium opened in 1999, the Dawg Pound was a 10,644, double-deck area. During stadium renovations in 2014, the upper level of the Dawg Pound was reduced to make way for a new, larger scoreboard, auxiliary scoreboard, and additional fan areas, and the bleacher seating in the upper level was replaced with chairbacks.
FirstEnergy Stadium