Steel and wood poles serve similar functions in early-stage utility construction. However, when developers take the long view, key differences in material performance begin to accumulate. A utility construction company evaluating infrastructure for long-term use will need to consider maintenance, reliability, and overall value. Here are a few reasons why, in most cases, steel provides the advantage:
Longer Lifespan
Steel is more durable than wood and does not warp, rot, or crack over time. Structures made of steel remain strong and stable for many years without losing their shape or quality. Outdoor elements, such as sunlight, rain, and snow, have a minimal impact on the integrity of steel. Wood can break down due to moisture and insects like termites. Steel does not support fungal or insect growth, reducing the chance of decay. When a utility construction company uses wood for building, it needs to perform inspections and chemical treatments.
Uniform Dimensions
Manufacturers produce steel poles with uniform measurements for the length, diameter, and wall thickness. Wood poles naturally vary in size, shape, and density because they are derived from trees. Each wooden pole can have differences like bends, knots, and uneven surfaces. A developer may need to make adjustments or replace wooden poles that do not meet the needed specifications. Uneven wood poles can require extra trimming or custom fittings to function properly. Over time, these variations can affect the structural integrity of the project, leading to damage.
The uniformity of steel poles leads to better quality control during installations. This consistency allows every steel pole to fit perfectly in its intended space and connect smoothly with other materials. Every steel pole that manufacturers produce meets the same quality standards. This reduces the risk of weak spots in steel poles, similar to those that occur in wood due to natural flaws.
Material Strength
Steel poles are built to consistent standards using ASTM-certified materials with defined strength and thickness requirements. Unlike wood, which varies in density and quality, steel poles maintain their structural integrity and do not weaken over time. Consistent strength enables steel poles to withstand mechanical stresses, including high wind and load forces, without permanent deformation. Steel poles can support horizontal tip loads ranging from several thousand pounds.
Manufacturers produce steel poles in standardized classes that exceed the capacity ranges of traditional wood poles. To meet these strength demands while staying lighter than wood, they use high-quality steel plates and controlled welding during fabrication. This enables steel poles to carry heavier electrical equipment or additional infrastructure elements. From a long-term perspective, the material strength of steel poles reduces the need for maintenance and replacement.
Fire Resistance
Steel poles can withstand high temperatures without major structural damage, unlike wood. Under similar conditions, wood poles can suffer severe damage or complete structural failure. Steel does not combust, translating to reliability and safety in areas prone to wildfires. A construction utility company can protect steel poles with fire-resistant coatings to further improve their durability. For developers, the fire resistance of steel poles reduces downtime associated with pole failures.
Design Flexibility
Manufacturers fabricate steel poles to meet precise height and strength needs. Technicians can pre-drill the poles for framing or attachment purposes. Developers can use taller poles to support heavier equipment and longer spans. Engineers can produce the poles with anchor mounts or embedded bases to further expand their applicability across different site conditions.
Learn More About a Utility Construction Company
A utility construction company offers standard tapered steel poles that cover a range of capacities and lengths. They can procure or produce your substation components and deliver them to your site for construction. Contact a utility construction company to learn more about their services.
