Florida Building Code Practice Exam 2025 - Free Building Code Practice Questions and Study Guide

Question: 1 / 400

Wood columns exposed to ground in unexcavated areas must be made of what type of wood if closer than a specific distance to exposed ground?

Approved naturally durable wood

Approved naturally durable wood is the correct answer because it has inherent properties that make it resistant to decay and insect damage, which is crucial for wood columns that are exposed to ground conditions, especially in unexcavated areas. The Florida Building Code specifies the use of naturally durable wood to enhance the longevity and structural integrity of wood elements that are at risk of moisture contact and deterioration.

In contrast, composite wood and plywood do not possess the same natural resistance to the elements as durable wood; they can degrade more rapidly when in contact with soil or moisture. Untreated wood lacks the necessary treatments or properties to withstand environmental conditions when exposed to the ground, making it unsuitable for this application. Hence, for structural safety and compliance with building standards, approved naturally durable wood is required.

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Composite wood

Plywood

Untreated wood

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