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10 Foot Fiberglass Crossarm | 5 in x 5 in x 10 ft | Hardware Included | Fits 5 to 9 in Diameter Poles
This 10-foot fiberglass crossarm is a strong choice for outdoor lighting and utility applications where non-conductive, corrosion-resistant, and fire-resistant support is essential. Its high-strength FRP construction, 25-year UV protective coating, and galvanized hardware ensure long-term durability in demanding environments, while its ability to flex under wind load and return to shape reduces the risk of permanent damage. The lightweight design and included mounting hardware simplify installation on fiberglass or wood poles up to 9 inches in diameter. This crossarm is ideal for commercial and industrial sites exposed to weather or elevated fire risk.
Dwayne Kula | President, CTO and Founder
Product Description
Key Features
- Material: Fiberglass
- Pole Color: Bronze | Black | White | Gray | Custom
- Length: 10 feet
- Width: 5 inches
- Height: 5 inches
- Max Pole Diameter: 9 inches
- Max Pole Circumference: 28.25 inches
- Material: Fiberglass
- Threaded Rod: 12 in x 3/4 in
- Weight: 45 lbs
- Brackets: Included
- Warranty: 7 years
10 Foot fiberglass crossarms include galvanized connection hardware and end caps. They are available in bronze, black, white, or gray. Built with high-strength FRP, these crossarms are designed to attach to fiberglass or wood poles with a diameter of up to 9 inches.
Durable Construction
- Lightweight, easier to unload and install, saving on labor costs
- Does not rot, rust, or corrode.
- Non-conductive
- Does not break down with age, coated in 25-year UV protective paint
- Stronger than equivalent steel in compression and tension, providing excellent durability and longevity in high wind conditions
- Designed to bend, not break, meaning that poles can naturally bend due to weather conditions and will return to their original form
- Fire resistance: poles do not sustain a flame, as there is no fuel source for fire
Product Includes
- [1] Crossarm Bracket
- [2] 12 in x 3/4 in threaded rods for attaching the bracket to the pole
- [2] 6 3/8 in x 3/4 in bolts for attaching crossarm to bracket
- [2] End Caps
Delivery is made with a flatbed truck and the customer is responsible for offloading. Offloading requires a fork lift or appropriate similar vehicle to offload - customer supplied. Customers are responsible for any costs associated with delivery rescheduling because of improper scheduling or not having the proper offloading equipment or area to store poles available at the time of delivery. Please contact a sales representative prior to purchasing to ensure all the project details are clear.
Pricing: Does not include cost of shipping. Shipping is available to the lower 48 USA states. We can supply a budgetary shipping quote or a firm shipping quote that is good for 14 days.
Web ID: 2710
Product Overview
This 10 Foot Fiberglass Crossarm is designed for use with post top lighting and architectural site lighting systems. It provides a non-conductive, corrosion-resistant mounting solution for attaching luminaires or accessories to fiberglass or wood poles with diameters from 5 to 9 inches. The crossarm is supplied with galvanized hardware and end caps for secure installation and long-term durability.
Typical installations include site lighting layouts where non-metallic, fire-resistant, and UV-protected structural components are required. The 10-foot length and 5-inch by 5-inch profile support a range of pole-mounted lighting applications in commercial, municipal, and architectural environments.
Core Performance and Output
This fiberglass crossarm is engineered for high structural strength in both compression and tension. The 5-inch by 5-inch cross-section and 10-foot span provide stable support for post top fixtures and accessories, with a maximum pole diameter compatibility of 9 inches. The crossarm?s material composition delivers non-conductive performance and resists corrosion, rot, and rust in outdoor environments.
The crossarm is rated to withstand high wind loads and is designed to flex under stress, returning to its original shape without permanent deformation. Excessive fixture weight or mounting beyond the specified pole diameter may compromise structural integrity or installation safety.
Adjustability and Control Options
The crossarm includes two 12-inch threaded rods and two 6 3/8-inch bolts for bracket attachment, allowing for secure and adjustable mounting to compatible poles. The bracket system accommodates a range of pole diameters and enables precise alignment during installation.
No integrated electrical or lighting control features are present. Adjustability is limited to mechanical positioning and bracket orientation during installation.
Longevity and Reliability
The fiberglass construction is coated with a 25-year UV protective paint, providing long-term resistance to sunlight exposure and environmental degradation. The crossarm does not rot, rust, or corrode, and is not susceptible to breakdown from age or weathering.
Fire resistance is inherent to the material, as fiberglass does not sustain a flame. The crossarm is designed to maintain structural performance over extended service life, even in high wind or corrosive environments.
Build Quality and Physical Characteristics
This crossarm is fabricated from high-strength fiberglass reinforced polymer (FRP), offering a balance of lightweight handling and robust structural capacity. The 10-foot length and 5-inch square profile provide ample support for typical post top lighting applications. The total weight is 45 lbs, making it manageable for two-person installation without heavy equipment.
End caps and galvanized hardware are included to prevent moisture ingress and ensure secure attachment. Available color options include bronze, black, white, gray, or custom finishes to match site requirements.
Where This Product Fits Best
This fiberglass crossarm is suited for environments where non-conductive, corrosion-resistant, and fire-resistant mounting solutions are required for post top and architectural site lighting. It is commonly used in outdoor commercial, municipal, and architectural settings where exposure to weather, UV, or corrosive elements is expected.
- post top lighting
- architectural site lighting
- pedestrian area lighting
- park lighting
- municipal lighting
- campus lighting
- courtyard lighting
- pathway lighting
The crossarm?s non-conductive and corrosion-resistant properties make it suitable for coastal, humid, or high-traffic public areas. It is not intended for use with poles exceeding 9 inches in diameter or for applications requiring metallic structural components.
Installation and Long-Term Use
Installation is performed using the included bracket and hardware, attaching the crossarm to fiberglass or wood poles within the specified diameter range. The lightweight design simplifies handling and reduces labor requirements. End caps protect the crossarm interior from moisture and debris.
Routine inspection of hardware tightness and end cap integrity is recommended for long-term reliability. The crossarm?s UV-resistant coating and fire-resistant material minimize maintenance needs in most outdoor environments.
How This Fixture Is Commonly Used
Crossarms of this type are typically installed at heights matching the pole?s mounting requirements for post top or site lighting, often ranging from 10 to 30 feet above grade. Spacing and layout depend on the lighting design and site geometry, with the 10-foot length supporting single or multiple fixture mounting as needed.
Fixture count and spacing may be adjusted based on the crossarm?s load capacity and the desired lighting distribution. Using higher output fixtures may reduce the number of poles and crossarms required, but can increase wind loading and structural demands.
Safety, Certifications, and Warranty
The crossarm is non-conductive and fire resistant by material design. All connection hardware is galvanized for corrosion resistance. The product includes a 7-year warranty covering material and manufacturing defects.
UV protection is provided by a 25-year rated coating. No additional electrical or safety certifications are specified for this structural component.
Frequently Asked Questions
Q: What is the maximum pole diameter this crossarm can be mounted to?
A: The crossarm is compatible with poles up to 9 inches in diameter.
Q: Is the crossarm suitable for coastal or corrosive environments?
A: Yes, the fiberglass construction is corrosion resistant and suitable for coastal or corrosive locations.
Q: What hardware is included with the crossarm?
A: The crossarm includes a bracket, two 12-inch threaded rods, two 6 3/8-inch bolts, and two end caps.
Q: Can this crossarm be used with metal poles?
A: It is designed for use with fiberglass or wood poles. Compatibility with metal poles depends on pole diameter and bracket fit.
Q: What is the recommended mounting height for this crossarm?
A: Mounting height is determined by the pole and lighting design, typically between 10 and 30 feet above grade.
Q: How should fixture spacing be planned when using this crossarm?
A: Fixture spacing depends on the crossarm?s length, fixture weight, and lighting requirements. Higher output fixtures may allow for wider spacing but increase wind load.
Application Questions and Clarification
Q: Is this crossarm appropriate for supporting multiple post top fixtures?
A: Yes, as long as the combined weight and wind load do not exceed the crossarm?s structural capacity and hardware limits.
Q: Can this crossarm be used in municipal park lighting projects?
A: Yes, it is commonly used in municipal, park, and campus lighting applications requiring non-conductive and corrosion-resistant mounting.
Q: Does the crossarm require any special maintenance?
A: Routine inspection of hardware and end caps is recommended. No special maintenance is required beyond standard checks.
Q: Is the crossarm fire resistant?
A: Yes, the fiberglass material is fire resistant and does not sustain a flame.
