Corner Post

Corner Post

48"
$274.80
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Corner Post

Corner Post

$274.80
Size
Compatible with:
Buildable Panel Box

Corner Posts for Buildable Panel Box Trench System

Corner Posts connect buildable panel trench box panels to create 2-, 3-, or 4-sided shoring configurations for utility trenching, municipal water/sewer work, and residential excavation. Constructed from high-strength aluminum, these posts provide structural rigidity while remaining light enough for hand-set installation in confined spaces.

Why Choose Buildable Box Corner Posts

  • Modular Flexibility: Reconfigure on-site as trench layout changes
  • Lightweight Handling: Two-person installation without machinery
  • Durable Construction: Aluminum resists corrosion in wet trench conditions
  • Municipal-Ready: Sized for typical water/sewer depth requirements

When to Use Corner Posts

Use Corner Posts when your trench requires directional changes, intersections, or full enclosure beyond a straight parallel shield. 

They’re especially valuable for:

  • Municipal projects with multiple pipe tie-ins
  • Utility repairs at street intersections
  • Residential jobs where trench layout follows property lines
  • Any excavation requiring workers to access multiple sides of the trench

Why Corner Posts Matter

Corner Posts form the structural backbone of modular aluminum trench shields. They lock panels together at precise angles, creating L-shapes, U-shapes, or full four-sided protection depending on trench configuration and soil conditions. Unlike welded systems, this modular approach lets contractors adapt shoring layouts on-site as conditions change.

The lightweight aluminum construction means two workers can assemble configurations that would require machinery with steel alternatives—critical for urban job sites, backyard utility work, or anywhere crane access is limited.

Technical Specifications

  • Material: High-strength aluminum alloy
  • Compatibility: Buildable Box System panels and spreaders
  • Configurations Supported: 2-sided, 3-sided (L-shape or U-shape), 4-sided
  • Installation Method: Hand-set, no heavy equipment required
  • Typical Applications: Trenches 4-12 feet deep in Type A, B, or C soil (when properly configured)
Compatible Systems

Buildable Panel Box

Safety & Compliance

Corner Posts must be used with properly rated panels and spreaders to meet OSHA trench safety requirements. Soil type, trench depth, and panel load capacity determine safe configurations. Consult OSHA 1926 Subpart P or contact our team for application-specific guidance.

Primary Applications

  • Municipal water main and sewer line repair
  • Utility trench work in tight-access areas
  • Residential plumbing and gas line installation
  • Hand-set trench box configurations without heavy equipment

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