California Fencing Contractor (C-13) License Practice Exam 2026 - Free Fencing Contractor License Practice Questions and Study Guide

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Which wood species are commonly used for exterior fencing due to durability?

Oak and maple are common for exterior fencing.

Cedar and redwood are common for rot resistance; treated pine is used for cost-effectiveness.

Exterior fences face moisture and weather, so the wood chosen needs strong resistance to rot. Cedar and redwood are popular for durability because they have natural rot- and insect-resistant compounds, helping them last longer outdoors even without chemical treatment. Treated pine is a cost-effective alternative; the wood is infused with preservatives to resist decay and pests, giving decent exterior longevity at lower cost. Other species like oak and maple aren’t as well suited for long outdoor life, and pine or spruce without treatment won’t hold up as well. Walnut and bamboo aren’t standard choices for durable exterior fencing.

Pine and spruce are the only options.

Walnut and bamboo are preferred.