PDH Engineer     PE PDH
PDH Online

Wood - Physical Properties

Credit: 3 PDH Hours
Course Fee: $27.00
25 pages

How it Work!

  1. Register first and log into your account. Study and take the quiz for FREE until passed.
  2. After passing the quiz, follow the page, pay for the course and print your certificate.

Course Summary:

Wood exchanges moisture with air; the amount and direction of the exchange (gain or loss) depend 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. This chapter discusses the physical properties of most interest in the design of wood products.

Learning Objective:

  • Appearance
  • Plainsawn and Quartersawn
  • Moisture Content
  • Sorption Hysteresis
  • Shrinkage
  • Transverse and Volumetric
  • Longitudinal
  • Moisture-Shrinkage Relationship
  • Weight, Density, and Specific Gravity
  • Working Qualities
  • Decay Resistance
  • Thermal Properties
  • Thermal Expansion Coefficient
  • Electrical Properties
  • Coefficient of Friction
  • Nuclear Radiation

Review the quiz before studying the course.

Course Content

Course Author: US Forest Services

Certificate of completion of the course

This course comes with a multiple-choice quiz. You can view the quiz and take the quiz if you are logged in your account. You can take the quiz for this online PDH course as many times until passed. The passing grade is 70% and above. After you pass the quiz simply follow the page, to pay for the course and print your certificate instantly. A copy of the certificate and receipt for this course will always be in your account.

This online PDH course can also be used as a continuing education course for the following.


PE Civil Engineers

PE Structural Engineers

CE Contractors

Home and Building Inspectors

Landscape Architects

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