Class 6 Wood Poles

What Is a Class 6 Wood Pole?

Class 6 wood poles are comparatively smaller poles that may be used for lighting, communications, service connections, and utility projects with lower structural loads. Among Classes 1 through 6, Class 6 generally has the smallest minimum dimensions for a comparable length and species.

The reduced size can make Class 6 poles easier to transport, unload, handle, and install than heavier pole classes. Those practical advantages only apply when the complete project design confirms that Class 6 provides sufficient capacity for the proposed attachments and environmental conditions.

LED Lighting Supply offers wood utility poles and wood light poles in multiple classes and heights. Confirm the available species, treatment, dimensions, lead time, minimum order quantity, and project documentation before ordering.

When Is a Class 6 Wood Pole an Appropriate Choice?

Class 6 may be appropriate when the project has lighter structural loads and does not require the larger dimensions of Classes 1 through 5. It may provide a practical option for shorter poles, limited attachments, service connections, and smaller lighting installations where the approved loading remains within the pole’s capacity.

Potential applications include:

• Electrical service connections and other lower-load utility installations
• Telecommunications, broadband, and cable service infrastructure
• Single-fixture security, perimeter, or access-area lighting
• Small parking areas, private roads, or commercial property lighting
• Local connection points and service equipment
• Projects whose approved plans or utility standards specifically identify Class 6

These examples do not confirm that every Class 6 pole is suitable for those uses. Pole length, attachment height, fixture or conductor load, span length, line angle, wind, ice, soil conditions, and embedment design must also be evaluated.

Where Class 6 Poles May Not Be Appropriate

Class 6 poles have less structural capacity than Classes 1 through 5 for comparable lengths and species. They may not be appropriate for taller poles, long conductor spans, substantial line angles, large transformers, heavy communications equipment, multiple-fixture assemblies, large crossarms, or demanding wind and ice conditions.

Class 6 should not automatically be selected because it is smaller or potentially less expensive. A lower initial pole cost can be outweighed by redesign, replacement, or installation delays if the selected pole does not satisfy the approved loading requirements.

Projects involving high mounting heights, sports lighting, large roadway fixtures, power transmission, or substantial utility equipment commonly create more demanding loads and should be evaluated for a heavier pole class or another engineered pole design.

Class 6 Compared with Class 5 Wood Poles

Class 5 and Class 6 poles may be available in similar lengths, but they are not interchangeable. For a comparable length and species, Class 5 generally has larger minimum dimensions and greater capacity.

Class 6 may be appropriate when the proposed loads are below the approved limits for that class and the additional capacity of Class 5 is unnecessary. Class 5 may be needed when the project involves greater attachment loads, taller configurations, longer spans, larger fixture arrangements, or more demanding environmental conditions.

The final selection should be based on the structural design rather than price, pole weight, or class number alone.

Understanding ANSI O5.1 Class 6 Requirements

ANSI O5.1 establishes minimum quality and dimensional requirements for wood poles used as single-pole utility structures. Pole classification accounts for species, overall length, minimum circumference, taper, and associated strength characteristics.

A Class 6 pole generally has a minimum top circumference of approximately 18 inches. Its required circumference six feet from the butt is larger and varies according to pole length and wood species. One fixed six-foot circumference does not apply to every Class 6 pole.

Use LED Lighting Supply’s wood pole dimension estimation calculator for preliminary dimensional planning. Confirm final measurements against the selected product data and project requirements.

Typical Class 6 Pole Characteristics

• Minimum top circumference: Approximately 18 inches, subject to species and applicable specifications
• Circumference six feet from the butt: Varies by pole length and wood species
• Relative capacity: Below Classes 1 through 5 for comparable lengths and species
• Installation style: Typically installed using direct embedment
• Available lengths and species: Vary by manufacturer, region, and current production availability

Selecting Class 6 Wood Poles for Lighting

Class 6 poles may support smaller outdoor lighting systems when the structural evaluation confirms that the pole can accommodate the fixture, mounting hardware, attachment height, and environmental loads. Typical candidates may include single area lights, compact floodlights, security fixtures, or other limited fixture arrangements.

A photometric plan can help determine:

• Required pole quantity and placement
• Fixture mounting height
• Fixture wattage and lumen output
• Optics and light distribution
• Target foot-candle levels and uniformity
• Spill-light and property-line limits

The structural review must separately account for:

• Number of fixtures mounted on each pole
• Fixture, arm, and bracket weight
• Total projected area or EPA
• Fixture orientation and attachment height
• Basic wind speed and exposure category
• Applicable ice, terrain, and elevation conditions

A low fixture wattage does not necessarily mean the fixture creates a low structural load. The fixture’s size, projected area, mounting height, orientation, and bracket configuration may be more important than its electrical wattage.

Keeping Class 6 Lighting Configurations Within Scope

Class 6 is most likely to fit lighting projects with a limited number of compact fixtures and moderate mounting heights. Adding fixtures, longer arms, large crossarms, banners, cameras, antennas, or other equipment can materially change the pole load.

Future attachments should be considered before ordering. A pole selected only for the initial light fixture may not have sufficient capacity for equipment added later.

When the desired light levels require tall mounting heights, multiple fixtures, aggressive aiming, or wide pole spacing, the project may require Class 5 or a heavier pole class. The photometric layout and structural design should be coordinated before the poles and fixtures are purchased.

Selecting Class 6 Poles for Utility and Communications Work

Class 6 poles may be considered for lower-load service, communications, and local distribution applications. The complete line design must account for conductors, service drops, communications cables, equipment, attachment heights, spans, and clearances.

A pole on a straight section of a lightly loaded line may have different requirements from a pole at a corner, termination point, road crossing, or equipment location. Line angles, unbalanced loads, wind, ice, and guying can increase the required capacity.

The utility or project engineer should confirm the pole class, length, setting depth, attachment configuration, clearances, and guying before purchase. Do not use Class 6 for power transmission or substantial distribution equipment unless specifically supported by the approved design.

Wood Species and Available Configurations

Wood species affect pole dimensions, taper, strength characteristics, weight, treatment performance, and regional availability. Southern Yellow Pine and other recognized pole species may be available for Class 6 configurations, depending on length, manufacturer, and project location.

Do not assume that Southern Yellow Pine, Ponderosa Pine, Western Red Cedar, or other species have identical dimensions or design values for the same class and length. Confirm the species offered for the selected pole and whether the utility, engineer, municipality, or owner restricts acceptable species.

Available lengths may include shorter configurations, but stock and production status can change. Verify current lengths and lead times instead of relying on a general range.

CCA Treatment and Wood Preservation

Class 6 wood poles may be pressure treated with chromated copper arsenate, commonly called CCA. CCA helps protect wood against fungal decay, termites, and other organisms that can degrade the material.

Preservative treatment does not determine the ANSI pole class, guarantee a fixed lifespan, or make a pole suitable for every environment. Long-term performance can be affected by treatment type, retention, exposure, drainage, handling, field modifications, installation quality, and inspection practices.

Confirm that the preservative and retention level are appropriate for the intended ground-contact use and applicable American Wood Protection Association requirements. Additional information is available in our comparison of CCA, DCOI, and pentachlorophenol pole treatments.

Direct Embedment and Available Height Above Grade

Class 6 wood poles are typically installed by placing part of the pole below grade and compacting approved backfill around it. Anchor bolts are not normally used for a conventional direct-embedded wood pole.

Because part of the pole is below ground, its nominal length is not the same as the usable height above grade. Before selecting a pole length, account for:

• Required setting depth
• Fixture or equipment attachment height
• Clearance from the top of the pole
• Final grade at the pole location
• Changes in site elevation

This is particularly important with shorter Class 6 poles. A pole that appears long enough based on its nominal length may not provide the required fixture or attachment height after embedment.

Setting depth, hole diameter, backfill, and stabilization requirements depend on the approved design and site conditions. Soil bearing capacity, groundwater, frost depth, slopes, erosion, and environmental loads may affect the installation.

Delivery, Unloading, and Installation

Class 6 poles may be smaller than heavier classes, but their length and weight can still require commercial freight and mechanical unloading. Do not assume that standard manual handling equipment will be sufficient.

Confirm delivery access, turning space, overhead clearances, unloading responsibility, and the equipment required to move and set the poles safely. The installer should also identify underground and overhead utilities before excavation begins.

Store poles in a stable location and support them off the ground where practical. Avoid dragging poles or damaging the preservative-treated outer surface. Field drilling, cutting, trimming, or notching should follow the manufacturer’s instructions, including treatment of exposed wood where required.

What to Confirm Before Ordering Class 6 Poles

• Required pole class and overall length
• Required fixture or equipment height above grade
• Wood species and product-specific dimensions
• Preservative type, retention, and exposure requirements
• Fixture, bracket, conductor, cable, and equipment loads
• Whether future cameras, antennas, banners, or other equipment may be added
• Wind, ice, exposure, and site-specific environmental conditions
• Setting depth, backfill, and stabilization requirements
• Utility, municipality, engineer, or owner approval requirements
• Minimum order quantity, production status, and lead time
• Delivery access, unloading responsibility, and storage plan

Some Class 6 poles may be produced to order, while selected configurations may be available more quickly. Confirm current availability rather than assuming that a particular length, species, or treatment is stocked.

LED Lighting Supply’s Product Specialists can help identify available Class 6 configurations, obtain product documentation, and prepare a pole quote. Structural suitability, clearances, attachment design, embedment, and code compliance should be verified by the qualified professional responsible for the project.

Class 6 Pole Standards and Documentation

Required documentation varies by manufacturer and project. Product data may identify the ANSI O5.1 class, species, overall length, dimensions, preservative treatment, retention level, branding, and plant quality-control information.

A Class 6 designation does not by itself establish approval for a utility, municipal, public works, or government project. Confirm the required submittals and obtain approval from the responsible authority before purchase when applicable.

Class 6 Wood Pole Warranty

Warranty coverage varies by manufacturer, species, treatment, application, handling, field modification, and installation. Confirm the warranty term, covered conditions, documentation requirements, and exclusions before ordering.

Keep purchase documents, pole identification, treatment records, delivery information, and installation records. Improper unloading, storage damage, untreated field cuts, unapproved modifications, or installation outside the approved design may affect coverage.

Explore Poles by Height

• 10 to 15 Foot Light Poles
• 20 to 25 Foot Light Poles
• 30 to 35 Foot Light Poles
• 40 to 45 Foot Light Poles
• 50 to 55 Foot Light Poles
• 60 to 65 Foot Light Poles
• 70 Foot Light Poles

Compare Other Wood Pole Classes

Classes 1 through 5 generally provide greater capacity than Class 6 for comparable lengths and species. Compare the available classes when the proposed attachments, environmental loads, or project requirements may call for a larger pole.

• Class 1 Wood Poles
• Class 2 Wood Poles
• Class 3 Wood Poles
• Class 4 Wood Poles
• Class 5 Wood Poles

Class 6 Wood Poles FAQs

Can A Class 6 Wood Pole Support Outdoor Lighting?

Class 6 poles may support smaller outdoor lighting systems with limited, compact fixture arrangements when the structural evaluation confirms adequate capacity. Lighting layout and structural review should account separately for fixture placement, mounting height, fixture and bracket weight, projected area, orientation, wind, ice, and site conditions.

How Many Fixtures Can A Class 6 Wood Pole Support?

There is no fixed fixture quantity for every Class 6 pole because capacity depends on the complete attachment configuration and project conditions. The number of fixtures, arm length, bracket weight, projected area, mounting height, wind exposure, ice, and future attachments must be evaluated together.

Does Fixture Wattage Determine The Structural Load On A Class 6 Pole?

No, low fixture wattage does not necessarily mean low structural load on the pole. Fixture size, projected area, mounting height, orientation, and bracket configuration may be more important than electrical wattage.

Does Nominal Pole Length Equal Available Height Above Grade?

No, part of a direct-embedded wood pole is installed below grade, so nominal pole length is not the usable height above grade. Selection should account for setting depth, attachment height, top clearance, final grade, and site elevation changes.

Should Future Attachments Be Considered When Selecting A Class 6 Pole?

Yes, future cameras, antennas, banners, crossarms, or other equipment should be considered before ordering. A pole selected only for the initial fixture may not have sufficient capacity after additional equipment is installed.