What is tunnel form construction?

Tunnel form construction is a method using specially designed steel or aluminium tunnel-shaped formwork to cast walls and slabs simultaneously in a single pour, producing highly repetitive structural units with exceptional speed and precision.

How Tunnel Form Works

• Tunnel-shaped half-sections are pushed into position to form walls and slabs
• Concrete is poured to fill the tunnel formwork in a single operation
• Formwork is stripped daily and repositioned for the next pour

Structural and Speed Benefits

• Produces monolithic structures of high strength and uniformity
• Enables daily floor completion cycles under ideal conditions
• Minimizes construction joints for stronger, waterproof structures

Ideal Project Types

• Highly repetitive residential towers with consistent floor layouts
• Affordable and social housing projects requiring fast delivery
• Hotel and student accommodation buildings with uniform room layouts

Tunnel form construction delivers some of the fastest build cycles available for repetitive residential structures, making it a preferred choice for large-scale housing programs where speed and structural quality are equally critical.