Concrete forming is evolving as projects demand tighter schedules, more complex geometry, and higher durability, especially in infrastructure and data center construction. This course introduces modern stay in place forming systems as a practical and reliable alternative to traditional plywood formwork. These systems offer a lightweight, galvanized steel mesh that simplifies rebar and conduit penetration and remains in place after concrete is poured. Contractors often use this method for duct banks, equipment pads, retaining walls, generator or HVAC enclosures, blindside walls, tunnels, below grade bulkheads, and shotcrete-backed structures. Participants will see how this system can cut jobsite labor significantly, eliminate form stripping and disposal, and improve jobsite safety and speed. We also review how the system performs under load, how the mesh surface aids concrete consolidation and bond strength, and explore applications in data centers, civil infrastructure, and specialty shotcrete projects. By the end of this course attendees will know when and how to specify stay in place formwork to meet structural, scheduling, and sustainability goals.