4L Trench Shield

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4L Trench Shield - 4L Series Trench Box

The 4L trench box is ideal for contractors who typically excavate to depths of 12 to 15 feet. This trench shield is modeled for the smaller rubber-tired excavators / loader machines. Utilizing special light weight materials, this trench box is ideal for repair / maintenance work.

The 4L Series Trench Shield is not designed for continuous pipe laying duty. Care should be exercised when quoting this unit.

  • Full length hardwood inserts in top horizontal tubes and front vertical tubes
  • Only fully gusseted steel knife edge
  • High tensile steel throughout
  • Trapped thru wall collar assemblies
  • 4-Point lifting system
  • Honey-comb inner structure
  • 8' Sch. 80 spreader pipe
  • Optional 5" Sch. 80 spreader pipe
  • Optional adjustable collars
  • All certified by a Professional Engineer to meet OSHA Standards
  • Customizable
  • Stackable
4L Trench System Chart


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