Duralite®

Composite Underground Enclosures

Tier 15 and 22 rated. Lighter lifts, safer installs, and faster field modifications, without compromising strength, safety, or specification requirements.

INSTALLATION EFFICIENCY

Lightweight Enclosures Built for Faster Field Installation

Duralite® enclosures deliver the performance infrastructure crews need with the handling ease they have been asking for. Designed for strength, field usability, and jobsite efficiency, Duralite helps crews reduce heavy equipment needs, simplify installation, and keep projects moving.

The latest Duralite enhancements were shaped by customer feedback and real-world installation experience, including built-in racking slots, conduit knockouts, flat work surfaces, and improved stackability.

Download the Duralite Time Study White Paper to see how reduced weight, faster installs, and smaller crews can translate into measurable project savings.

FIELD PERFORMANCE

Why Choose Duralite Composite Handholes?

Duralite® composite handholes combine load-rated strength, lighter handling, and field-ready design features to help crews work more efficiently. Built-in conduit knockouts, mouse holes, rack slots, and flat work surfaces simplify modifications in the field and help reduce installation delays.

With Tier 15 and Tier 22 rated options, flame-resistant materials, and durable composite construction, Duralite supports telecom, fiber, electric, transportation, and municipal utility applications where safety, speed, and performance matter.

COMPARISON

Duralite vs. Traditional Concrete Handholes

Traditional concrete and polymer concrete handholes can add weight, equipment needs, and field complexity to underground utility projects. Duralite® composite handholes are designed to reduce those challenges with a lighter, field-ready enclosure that helps crews install faster and work more efficiently.

Compared to heavier enclosure materials, Duralite makes handling, placement, and field modifications easier without giving up the strength and durability required for demanding infrastructure applications.

For telecom, fiber, electric, transportation, and municipal utility projects, Duralite provides a practical alternative where speed, safety, and long-term performance all matter.

Ready to plan your next underground utility project?

Talk with our team about Duralite® performance, installation considerations, and product options for your application.

Why Duralite Performs in the Field

From lighter handling to field-ready modifications, Duralite® helps crews reduce installation complexity while supporting strength, safety, and long-term performance.

Field-Tested Strength

Duralite® holds up where others crack. Tier 15 and Tier 22 load ratings are proven in the field, not just on paper. Stackable designs make it easy to go deeper without extra parts or wait time.

Fast, Equipment-Free Installs

Most units install safely with a two-person crew—OSHA-compliant and no heavy machines required. Conduit knockouts, mouse-holes, and built-in rack slots help keep the job moving fast.

Modifies In Minutes

With just a cordless drill and hole saw, crews can cut, notch, and mount on site—no dust clouds and no special tools. Larger flat work areas make drilling cleaner and faster.

Fire-Resistant by Design

Meets ASTM D635 standards for flame resistance. Safety is built into every unit with no add-ons and no exceptions.

Ready To Save Install Time

Standardized slots and off-the-shelf accessories—like cable racks, pulling eyes, and EMS markers—keep field crews moving without custom orders or workarounds.

Designed Cleaner & Greener

Duralite® helps cut fuel use and emissions by eliminating the need for heavy trucks and equipment. With a safer, phosphorus-based flame retardant, it is gentler on people, ecosystems, and the planet.

Duralite Specifications, Installation Guides & Downloads

Access product brochures, comparison sheets, installation guides, and technical resources to support planning, specification, and field installation.

Duralite Insights, Comparisons & Case Studies

Frequently Asked Questions About Duralite Composite Handholes

General Duralite Questions
1. What are Duralite handholes?

Duralite handholes are lightweight, below-grade composite enclosures engineered to provide secure access to underground electrical, telecommunications, fiber optic, and utility infrastructure.

They protect splices, terminations, valves, sensors, and equipment while supporting a wide range of load ratings and site conditions.

Duralite handholes are manufactured using a proprietary composite formulation of engineered resins and graded mineral aggregates, delivering high compressive strength, low moisture absorption, and excellent environmental resistance.

Duralite Handhole Sizes and Product Options

Explore common Duralite underground enclosure sizes and configurations for telecom, fiber, electric, transportation, municipal, and utility infrastructure applications.

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