SED Timber Poles for Retaining Walls, Landscaping and Construction

SED timber poles are a popular choice for retaining wall construction, structural landscaping, fencing, and building projects throughout Auckland and New Zealand. SED stands for Small End Diameter, referring to the measured diameter at the smallest end of the pole. These machine-peeled round timber poles offer excellent strength, durability, and natural appearance, making them suitable for both residential and commercial applications.

SED Pole Sizes and Options

A wide range of SED poles is available to suit different project requirements. Common diameters include 150mm, 175mm, 200mm and larger structural sizes extending beyond 300mm diameter. Lengths range from approximately 1.8 metres through to 11 metres depending on the application. High-density options are also available for projects requiring enhanced strength and performance.

Larger diameter poles are commonly selected for substantial retaining walls, heavy-duty landscaping, and structural support applications, while smaller poles are often used for garden retaining, fencing, edging, and light construction projects.

H5 Treated Timber Poles for Ground Contact

SED poles are treated to H5 standard, making them suitable for direct ground contact where long-term durability is essential. H5 treatment provides protection against fungal decay, moisture exposure, and insect attack, helping extend the lifespan of retaining structures and outdoor timber projects in New Zealand conditions.

This treatment level makes SED poles ideal for applications where the timber will be buried or exposed to constant soil and moisture contact, including retaining walls, retaining posts, boundary structures, and landscaping features.

Applications for SED Timber Poles

SED poles are widely used across residential, commercial, rural, and civil projects. Common applications include retaining wall uprights, landscaping structures, timber fencing, agricultural developments, playground construction, and general structural support. Their round profile and natural timber appearance also make them a popular choice for landscape design and outdoor feature projects.

For retaining wall construction, selecting the appropriate pole diameter and length will depend on wall height, soil conditions, loading requirements, and engineering specifications.

Quality SED Poles Available in Auckland

WBS Henderson supplies a comprehensive range of SED timber poles suitable for retaining, landscaping, fencing, and construction projects. With multiple diameter options, H5 treatment, and lengths to suit everything from small residential jobs through to large commercial developments, customers can source reliable retaining wall materials locally from Auckland with trade and public sales available.