6 Foot Fiberglass Crossarm | 5 in x 5 in x 6 ft | Hardware Included | Fits 5 to 9 in Diameter Poles

Product Overview

This 6 Foot Fiberglass Crossarm is designed for structural support in post top lighting and architectural site lighting systems. It is built from high-strength fiberglass reinforced polymer (FRP) and measures 6 feet in length with a 5 inch by 5 inch cross-section. The crossarm is engineered to mount securely to fiberglass or wood poles with diameters ranging from 5 to 9 inches, providing a stable platform for lighting fixtures or other site elements. Typical use includes mounting on poles in outdoor environments where non-conductivity, corrosion resistance, and long-term durability are required.

All necessary galvanized hardware and end caps are included for installation. The crossarm is available in bronze, black, white, or gray finishes to match site requirements. This product is commonly specified for new installations or upgrades in environments where steel or wood crossarms are not suitable due to electrical, corrosion, or maintenance concerns.

Core Performance and Output

The structural performance of this fiberglass crossarm is defined by its high compression and tension strength, exceeding that of equivalent steel in many applications. The crossarm is rated to support fixtures and loads typical for post top and architectural site lighting, with a maximum pole diameter compatibility of 9 inches and a maximum circumference of 28.25 inches. The included 12 inch x 3/4 inch threaded rods and heavy-duty brackets provide secure attachment and load transfer to the pole.

The crossarm is non-conductive, fire resistant, and coated with a 25-year UV protective finish. It is designed to flex under wind or impact loads and return to its original shape, reducing the risk of catastrophic failure. Excessive fixture weight or mounting on poles outside the specified diameter range may compromise performance.

Adjustability and Control Options

This crossarm is a fixed structural component with no integrated adjustability or electrical control features. Fixture orientation and aiming depend on the mounting hardware and bracket design of the attached luminaires. The crossarm?s flat, uniform profile allows for consistent fixture spacing and alignment along its length.

Any adjustability in the final installation is determined by the fixture mounting system, not the crossarm itself. The included hardware supports standard through-bolt attachment methods for secure, repeatable installations.

Longevity and Reliability

The fiberglass construction is resistant to rot, rust, and corrosion, making it suitable for long-term use in outdoor and harsh environments. The crossarm does not degrade with age and is protected by a UV-resistant coating to prevent surface breakdown from sunlight exposure. Fire resistance is inherent to the material, as it does not sustain a flame or provide fuel for combustion.

Unlike wood or steel, the crossarm will not require periodic painting or treatment to maintain performance. The product is covered by a 7-year warranty, reflecting its expected service life in typical site lighting applications.

Build Quality and Physical Characteristics

This crossarm is manufactured from high-strength FRP, providing a lightweight yet robust solution at 25 lbs per unit. The 5 inch by 5 inch cross-section delivers high rigidity and load capacity for its size. End caps are included to seal the crossarm and prevent moisture ingress.

All connection hardware is galvanized for corrosion resistance. The crossarm is available in multiple color options to match site aesthetics. The design allows for natural flexing under load, reducing the risk of breakage in high wind or impact scenarios.

Where This Product Fits Best

This fiberglass crossarm is intended for use in outdoor lighting systems where non-conductivity, corrosion resistance, and long-term durability are required. It is suitable for both new construction and retrofit projects involving fiberglass or wood poles. Typical environments include sports fields, coastal sites, corrosive industrial areas, and municipal lighting installations.

• baseball field lighting
• softball field lighting
• soccer field lighting
• football field lighting
• sports field lighting
• driving range lighting
• coastal lighting
• corrosive environment lighting

The crossarm?s non-conductive and fire-resistant properties make it suitable for areas with electrical safety requirements or exposure to salt, chemicals, or moisture. The UV-protected finish supports long-term outdoor use without significant maintenance.

Installation and Long-Term Use

Installation involves attaching the crossarm to a compatible fiberglass or wood pole using the included brackets, threaded rods, and bolts. The lightweight construction simplifies handling and reduces labor requirements compared to steel alternatives. The crossarm is designed for secure, through-bolt mounting and can be installed by a two-person crew using standard tools.

Once installed, the crossarm requires minimal maintenance. Periodic inspection of hardware and end caps is recommended to ensure continued structural integrity. The UV-resistant coating and corrosion-proof materials support reliable performance in exposed environments over many years.

How This Fixture Is Commonly Used

Fiberglass crossarms are typically mounted at heights consistent with sports field and site lighting poles, ranging from 20 to 40 feet above grade. Fixture spacing along the crossarm depends on the number and type of luminaires specified for the application. The 6 foot length allows for mounting multiple fixtures or accessories with adequate separation for uniform light distribution.

In practice, higher pole heights may require additional bracing or larger crossarms to support increased wind loads. Using a single crossarm can simplify fixture alignment but may limit the number of fixtures per pole compared to multi-arm configurations.

Safety, Certifications, and Warranty

This product is non-conductive, fire resistant, and UV protected. All connection hardware is galvanized for corrosion resistance. The crossarm is designed to meet structural and safety requirements for outdoor lighting support systems. A 7-year warranty is provided on materials and workmanship.

End caps are included to prevent moisture ingress and maintain long-term reliability. The product is suitable for use in environments with elevated safety or corrosion control requirements.

Frequently Asked Questions

Q: What is the maximum pole diameter this crossarm can be mounted to?

A: The crossarm is compatible with poles from 5 to 9 inches in diameter.

Q: Is the crossarm suitable for coastal or corrosive environments?

A: Yes, the fiberglass construction and galvanized hardware are resistant to corrosion and suitable for coastal or chemically aggressive sites.

Q: What is included with the crossarm for installation?

A: The product includes one crossarm bracket, two 12 inch x 3/4 inch threaded rods, two 6 3/8 inch x 3/4 inch bolts, and two end caps.

Q: Can this crossarm be used to support multiple fixtures?

A: Yes, the 6 foot length allows for mounting multiple fixtures, provided total weight and wind load do not exceed the crossarm and pole capacity.

Q: How should fixture spacing be planned on the crossarm?

A: Fixture spacing depends on the number of luminaires, their size, and the required light distribution. Even spacing is typical, but always verify load and wind ratings for the specific installation.

Application Questions and Clarification

Q: Is this crossarm compatible with both fiberglass and wood poles?

A: Yes, it is designed for use with both fiberglass and wood poles within the specified diameter range.

Q: Does the crossarm require any special maintenance after installation?

A: Routine inspection of hardware and end caps is recommended, but no special maintenance is required due to the non-corrosive, UV-protected construction.

Q: What environments are best suited for fiberglass crossarms compared to steel or wood?

A: Fiberglass crossarms are preferred in environments with high corrosion risk, electrical safety requirements, or where long-term maintenance needs to be minimized.