8 Foot Fiberglass Crossarm | 5 in x 5 in x 8 ft | Hardware Included | Fits 5 to 9 in Diameter Poles

Product Overview

This 8 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 plastic (FRP) and includes all necessary mounting hardware and end caps. The crossarm is compatible with round poles ranging from 5 to 9 inches in diameter, making it suitable for a range of site lighting layouts and pole types. Typical use includes mounting on fiberglass or wood poles in outdoor environments where non-conductivity and corrosion resistance are required.

The crossarm is finished in a UV-resistant coating and is available in bronze, black, white, gray, or custom colors. It is engineered for long-term durability in demanding exterior conditions, including coastal and corrosive environments. The included hardware is galvanized for additional protection against weathering and mechanical stress.

Core Performance and Output

This fiberglass crossarm supports structural loads typical of post top and architectural site lighting installations. The 8-foot length and 5-inch by 5-inch cross-section provide a stable mounting platform for luminaires and accessories. The crossarm is rated for use with poles up to 9 inches in diameter and a maximum circumference of 28.25 inches.

Fiberglass construction delivers high strength-to-weight ratio, with superior compression and tension performance compared to equivalent steel. The crossarm is non-conductive and does not corrode, rot, or sustain flame. It is designed to flex under wind load and return to its original shape, reducing the risk of catastrophic failure. Excessive fixture weight or wind load beyond the crossarm?s engineered limits may require additional structural review.

Adjustability and Control Options

The crossarm includes two 12-inch by 3/4-inch threaded rods and two 6 3/8-inch by 3/4-inch bolts for secure attachment to the pole and bracket. End caps are provided to seal the crossarm ends and prevent moisture ingress. The bracket system allows for straightforward alignment and adjustment during installation.

Color selection is available to match site requirements or architectural preferences. No integrated electrical or lighting control features are present; the crossarm serves as a structural mounting component only.

Longevity and Reliability

Fiberglass construction ensures long-term resistance to UV exposure, moisture, and environmental contaminants. The crossarm is coated with a 25-year UV protective paint to prevent degradation from sunlight. It does not rust, rot, or break down with age, and is fire resistant due to the absence of combustible material.

Mechanical properties are maintained over time, even in high wind or corrosive environments. The crossarm is engineered to bend rather than break, providing resilience during severe weather events. All hardware is galvanized for extended service life.

Build Quality and Physical Characteristics

The crossarm measures 8 feet in length, 5 inches in width, and 5 inches in height, with a total weight of 33 lbs. It is manufactured from high-strength FRP and finished in a choice of bronze, black, white, gray, or custom colors. End caps and mounting brackets are included for a complete installation package.

The non-conductive nature of fiberglass eliminates electrical hazard risk. The crossarm is designed for compatibility with both fiberglass and wood poles, supporting a range of site lighting and architectural applications. All components are engineered for outdoor use and exposure.

Where This Product Fits Best

This fiberglass crossarm is intended for use in outdoor lighting and site infrastructure projects where non-conductivity, corrosion resistance, and long-term durability are required. It is commonly installed in environments exposed to weather, UV, and corrosive elements.

• post top lighting
• architectural site lighting
• pedestrian area lighting
• decorative outdoor lighting
• park lighting
• campus lighting
• municipal decorative lighting

The crossarm is suitable for coastal, campus, municipal, and park environments. It is engineered for use with fiberglass or wood poles and is appropriate for both new construction and retrofit projects requiring non-metallic, corrosion-resistant mounting solutions.

Installation and Long-Term Use

Installation is performed using the included bracket, threaded rods, and bolts. The crossarm is lightweight for its size, simplifying handling and reducing labor requirements. It is designed to mount securely to round poles with diameters from 5 to 9 inches.

End caps prevent water ingress and debris accumulation. The non-conductive, corrosion-resistant material minimizes maintenance requirements over the service life of the installation. Periodic inspection of hardware and surface condition is recommended in high-exposure environments.

How This Fixture Is Commonly Used

Crossarms of this type are typically mounted at heights consistent with post top and site lighting standards, often ranging from 12 to 25 feet above grade depending on pole height and application. Spacing and layout are determined by site lighting requirements and pole placement.

Multiple luminaires or accessories can be mounted along the crossarm, with load distribution managed according to manufacturer guidelines. Higher mounting heights may require additional structural review for wind load and fixture weight, especially in open or coastal locations.

Safety, Certifications, and Warranty

The crossarm is non-conductive and fire resistant. All hardware is galvanized for corrosion protection. The product is covered by a 7-year warranty. No additional electrical or safety certifications are specified for this structural component.

All materials and finishes are engineered for outdoor use and exposure to UV, moisture, and environmental contaminants. The crossarm is suitable for use in areas where electrical isolation and fire resistance are required by code or site conditions.

Frequently Asked Questions

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

A: The crossarm is designed for poles with diameters from 5 to 9 inches.

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

A: Yes, the fiberglass construction and galvanized hardware provide resistance to corrosion and environmental exposure.

Q: What is included with the crossarm for installation?

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

Q: Can this crossarm be used with both fiberglass and wood poles?

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

Q: What is the recommended mounting height for this crossarm?

A: Typical mounting heights range from 12 to 25 feet, depending on site lighting requirements and pole height.

Q: How should fixture spacing be determined when using this crossarm?

A: Fixture spacing depends on the number and type of luminaires, crossarm length, and site lighting layout. Structural load limits should be observed.

Application Questions and Clarification

Q: Is this crossarm appropriate for municipal decorative lighting projects?

A: Yes, it is commonly used in municipal, campus, and park decorative lighting applications.

Q: Can this crossarm be used for mounting multiple luminaires in a pedestrian area?

A: Yes, multiple luminaires can be mounted as long as the total load does not exceed the crossarm?s structural capacity.

Q: Is this product suitable for use in park lighting installations?

A: Yes, it is frequently specified for park and pedestrian area lighting where non-conductive and corrosion-resistant materials are required.

Q: Does the crossarm require any special maintenance in outdoor environments?

A: Routine inspection of hardware and surface condition is recommended, especially in high-exposure or coastal environments.