These boxes were engineered and designed by In-Corr-tech Ltd. Fabricated to specification and Mpi tested. Meets Osha regulations for type C soil at a maximum depth of 20ft.
Trench box – 20ft L x 7ft H x 4 – 6ft W.
Manhole box (Waler) – 8ft L x 7ft H x 8ft W.
Service box (Waler) – 12ft x 7ft x 4 – 6ft W
All with stackable sections to double height.
Trench box, Manhole box, Waler box