Vs Class 50: Astm C920 Class 25

Marcus called the structural engineer, Dr. Patricia Okonkwo. “Pat, why Class 50 on the whole building? The north face sees half the movement.”

But for the tower that had to survive Seattle’s wind and sun? Only Class 50 would do. astm c920 class 25 vs class 50

“ASTM C920, Class 50. That’s what the engineer wrote.” Marcus called the structural engineer, Dr