PRODUCT

INNDERDUCT CONDUIT

High-quality HDPE innerduct conduit in a variety of options and sizes — smooth wall and internally ribbed, shipped across the US.

THE PRODUCT

WHAT IS INNERDUCT CONDUIT?

Innerduct conduit is a specialized type of HDPE conduit designed specifically for organizing and protecting fiber optic cables within larger conduit systems. Unlike standard conduit, innerduct is used to subdivide pathways, creating multiple dedicated channels that improve cable management, reduce friction during installation, and protect sensitive fiber infrastructure.

At Conduit Direct Group, our innerduct conduit is engineered for high-performance telecom and data applications, delivering long-term reliability in even the most demanding environments.

IMPROVED ORGANIZATION

Multiple fiber runs separated within a single outer conduit — less congestion, simpler upgrades and maintenance.

REDUCED FRICTION

Smooth or ribbed interior options minimize friction when pulling fiber — protecting delicate cables and speeding installation.

Enhanced Protection

Strong resistance to abrasion, moisture, chemicals, and environmental stress in underground and exposed applications.

Scalable Infrastructure

Segmented pathways make it easier to expand networks without additional trenching or major infrastructure changes.

SPECIFICATIONS

OPTIONS FOR INNERDUCT CONDUIT

Engineered for superior durability, our conduit withstands harsh conditions like UV radiation, water, and extreme temperatures. Its robust construction resists abrasion and scrapes, ensuring long-term reliability. Explore our custom order options below.

CONDUIT TYPES

Smooth Wall • Internally Ribbed

WALL TYPES

SDR 9 · SDR 11 · SDR 13.5 · SCH 40 · SCH 80

AVAILABLE SIZES

.75″ · 1″ · 1.25″ · 1.5″ · 2.0″ Innerduct

Add ONS

Pre-Installed Pull Tape – 1/2″ 1250 lb

WHY HDPE

OPTIONS FOR INNERDUCT CONDUIT

Manufactured using high-density polyethylene, offering a combination of flexibility, strength, and longevity — ideal for both new construction and retrofit projects.

Exceptional flexibility for tight bends and complex routing
High impact and crush resistance for demanding installations
UV, water, and chemical resistance for long-term durability
Lightweight design for easier handling and faster installation
Long service life, often exceeding decades in field conditions

USE CASES

APPLICATIONS FOR INNERDUCT CONDUIT

Innerduct conduit plays a critical role in modern fiber and communications infrastructure. It doesn’t just house cables—it creates a more organized, scalable, and serviceable system from day one.

TELECOM INFRASTRUCTURE

Structured pathways within larger conduit systems — run multiple fiber lines efficiently, reduce interference, and simplify troubleshooting and upgrades.

INTERNET PROVIDERS

Streamlined fiber installation with less pull friction and damage risk — expand service areas without re-trenching.

Data Centers & Campus Networks

Clean, organized cable routing where uptime is critical — separated fiber runs reduce cross-interference and ease maintenance.

Utility & Municipal

Broadband expansion, smart city technology, and traffic systems — multiple services coexist in one conduit, organized and accessible.

IN THE FIELD

BUILT FOR PERFORMANCE IN THE FIELD

From harsh weather conditions to demanding installation environments, our innerduct conduit is built to perform. HDPE’s natural flexibility ensures it won’t become brittle in cold temperatures, while its durability protects against impact and environmental wear over time.

Whether you’re installing fiber in urban infrastructure or rural broadband expansion projects, Conduit Direct Group delivers innerduct solutions you can rely on.

FAQ

FREQUENTLY ASKED QUESTIONS

Common questions about our HDPE conduit — specifications, applications, ordering, and delivery. Don’t see your answer? Our team is happy to help.

What is innerduct?

Innerduct is a subduct, or smaller conduit, installed inside a primary conduit. It creates segregated, protected pathways for fiber optic cable, and it is a common method of managing cable infrastructure in telecommunications.

What is innerduct conduit used for?

Innerduct conduit organizes and protects fiber optic cables inside a larger conduit system. It creates separate pathways for individual cable runs, reducing congestion and making installations, upgrades, and maintenance more efficient.

What is the difference between innerduct and standard conduit?

Standard conduit is the primary pathway for cables. Innerduct is installed inside that conduit to divide it into multiple channels, which improves cable management, reduces friction during pulls, and protects fiber from damage.

What is ribbed vs. smooth wall innerduct?

Smooth wall innerduct has a consistent interior surface. Ribbed innerduct features grooves along the inside that reduce surface contact during cable pulls, lowering friction and making installation easier, especially on longer runs.

What materials are used for innerduct conduit?

Our conduit is made from high-density polyethylene (HDPE). The material offers flexibility, durability, and resistance to moisture, chemicals, and environmental stress, making it well suited to long-term infrastructure.

What sizes are available for innerduct?

Innerduct is available in a range of sizes to accommodate different cable types and installation needs. Our sizes include ¾”, 1″, 1.25″, 1.5″, and 2″, with wall thickness options of SDR 9, SDR 11, SDR 13.5, SCH 40, and SCH 80.

How do I choose the right innerduct for my project?

The right innerduct depends on your cable type, installation method, and environment. Diameter, wall thickness, and whether you need a smooth or ribbed interior all factor in. Our team will help you match the configuration to your application.

What are the benefits of using innerduct?

Enhanced organization and clear cable identification
Superior protection and reduced risk of damage during pulling
Simplified cable installation and replacement
Separation of services within a shared pathway
Improved airflow in some applications
Future-proofing for added capacity
Cost-effective over the life of the system

Can innerduct be used for future network expansion?

Yes. Innerduct lets you pre-install additional pathways within a conduit system, so new cables can be added later without trenching or replacing existing infrastructure.

Why get a quote for innerduct pricing?

Accurate budgeting: Pricing varies by innerduct type, size, length, and add-ons such as pre-installed pull tape. A quote gives you the exact cost for your project.
Volume discounts: Larger orders may qualify for reduced pricing.
Customization options: Innerduct comes in a range of colors and configurations, and a quote prices out your exact specifications.

Request a quote

Sustainability

Reel Return Program

Return steel reels in good condition for cash. It cleans up your work area, keeps steel in use, and keeps costs down for everyone.

How it works