This Is One Method of Installing  Top Trench Mesh.

The Top Trench Mesh Can Be Hanged From Timber

Supports Across The Trench With Wire.

Tie One Side Of The Wire To The Trench Mesh Before Lowering The Mesh Into Position .

This Will Give You Something To Hold Onto While You Slide The Timber Back Into Position.

Once All The Trench Mesh Is In Position The Concrete Can Be Poured After A Building Inspection.