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Wood as An Engineering Material: Moisture Relations and Physical Properties

COURSE NO: S02-022
COURSE PROVIDER: Gilbert Gedeon, P.E.
Wood as An Engineering Material: Moisture Relations and Physical Properties
Course Highlights

This online engineering PDH course discusses the macroscopic physical properties of wood with emphasis on their relationship with moisture content.


Wood, like many natural materials, is hygroscopic; it takes on moisture from the surrounding environment. Moisture exchange between wood and air depends on the relative hu­midity and temperature of the air and the current amount of water in the wood. This moisture relationship has an impor­tant influence on wood properties and performance. Many of the challenges of using wood as an engineering material arise from changes in moisture content or an abundance of moisture within the wood.


This 2 PDH online course is applicable to civil, structural or geotechnical engineers, as well as design and construction personnel who are interested in gaining a better understanding in fire safety of wood construction or who are involved in the design and planning of wood structures.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with the different wood-moisture relationships
  • Understanding the four thermal properties of wood
  • Learning about the electrical properties of wood
  • Understanding the friction properties of wood
Course Document

In this professional engineering CEU course, you need to review Chapter 4, "Moisture Relations and Physical Properties of Wood" of the United States Department of Agriculture (USDA) Publication, “Wood Handbook - Wood as An Engineering Material”, FPL-GTR-190.


To view, print and study the course document, please click on the following link(s):
Wood as An Engineering Material: Moisture Relations & Physical Properties (613 KB)
Course Quiz

Once you complete your course review, you need to take a multiple-choice quiz consisting of fifteen (15) questions to earn 2 PDH credits. The quiz will be based on Chapter 4 of this USDA publication.

The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: