Steel Utility Grillage for Foundations

Steel Utility Grillages for Power Transmission Applications

PierTech™ Steel Utility Grillages are pre-engineered, modular foundation systems that provide a direct interface between deep foundation piles and above-grade utility structures. Engineered for versatility, these grillages simplify structural foundation construction by distributing vertical and horizontal loads across multiple piles—without excavation or concrete. Grillage is a faster and more cost-effective solution for structures carrying up to several hundred kips.

Fabricated from high-strength structural steel and fully customizable, PierTech™ grillages can connect to helical piles, micropiles, driven piles, or drilled shafts, offering a fast, low-impact solution ideal for transmission towers, substations, cellular infrastructure, and pipeline support.

Key Features

Multi-Pile Compatibility: Connects with helical piles, micropiles, driven piles, or drilled shafts depending on site-specific requirements.
Custom-Engineered for Structural Interfaces: Designed to match exact bolt patterns of utility poles, tower legs, skids, or equipment platforms. Available in configurations for 3 to 16 piles per assembly.
Above-Grade, No-Excavation Installation: Installs without concrete or excavation, minimizing environmental disturbance and archeological permitting issues.
Galvanized for Longevity: Hot-dip galvanized to ASTM A123 for durability in corrosive environments.
Rapid Deployment in All Conditions: Factory-assembled for fast placement with small crews and light equipment—installs in any weather, as long as it's safe for personnel.
Load-Test Ready: Enables immediate load testing after installation when used with helical piles.
Elevation Flexibility: Supports varying pile elevations within the same assembly.
Modular & Adaptable: Customizable for different soil conditions, layouts, and structural loads.

Benefits at a Glance

Fast Installation: No concrete, no curing delays.

Lower Installed Cost: Eliminates the need for large equipment mobilization and concrete delivery.

Eco-Friendly: Installs with minimal environmental disturbance.

Structural Reliability: Known steel properties allow for optimized safety factors.

Logistically Efficient: Small equipment footprint reduces access and freight challenges.

Engineer-Approved: PE-stamped drawings and load analysis available.

Steel Utility Grillages for Power Transmission Applications

Key Features

Benefits at a Glance

Applications

Loads and Capacity

INFORMATION

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