The early 20th century was an era of rapid industrial expansion, calling for robust structures capable of supporting large, open spaces and heavy equipment. Concrete, though durable, was prone to cracking under stress—a significant limitation for high-stakes building projects. Julius Kahn, an inventive engineer and the brother to our company’s founder, Albert Kahn, saw this challenge as an opportunity. Enter the Kahn Bar, an innovation that would redefine the potential of concrete and change the trajectory of modern construction.