Type Z / National Standard Scaffolding Type Z scaffolding is specifically engineered for high-load applications, featuring standards with a 60.3 mm diameter and 3.2 mm wall thickness. An internal connection design increases load capacity by 30% compared with Type B systems. With a 500 mm rosette module and modular ledgers, it is well suited for bridge piers, heavy-duty industrial plants, and similar projects, supporting up to 25 kN per bay. Hot-dip galvanizing provides a zinc coating ≥80 μm, del