Wood Structure and its Physical Properties

Gilbert Gedeon, P.E.

About Gilbert Gedeon, P.E.

Mr. Gilbert Gedeon is an online PDH course provider of continuing education courses for professional engineers.


Mr. Gedeon is a Registered Professional Engineer in the States of New York and New Jersey. He holds a Bachelor of Science in Civil Engineering and Master of Science in Environmental Engineering from New Jersey Institute of Technology. Mr. Gedeon is a member of the American Society of Civil Engineers. He is also a member of the National Society of Professional Engineers. He also serves on the board of New York State Society of Professional Engineers, Rockland County Chapter. Mr. Gedeon has developed numerous continuing education courses for professional engineers pursuing PDH credit for their license renewal.


Mr. Gedeon has over 23 years of diversified project engineering and management experience within the civil and environmental industry. He has provided a wide range of civil and environmental engineering services in support of capital improvement projects ranging from $100 thousand to $30 million. His professional practice involved remedial inspection and design of building toxics/hazardous material, design and supervision of subsurface investigations, monitoring well design and installation, groundwater plume delineation and analysis, upgrade/closure of underground storage tank systems, supervision of waste water treatment plant operation, development and review of spill prevention control and counter-measure (SPCC) plans, compliance audit management, supervision of excavations, shoring system installations, and geotechnical borings.


Mr. Gedeon has special expertise in the development of project specifications, design drawings, technical reports and cost estimates. He has managed contract documents from production to execution including proposals, bid evaluations, contract negotiations and award, review and approval of contractor submittals. Mr. Gedeon has extensive experience in operations management, account and project administration, client development and regulatory relations, corporate policy implementation, profit/loss analysis, personnel hiring and development, resource allocation and quality assurance.


COURSE NO: S03-002
PRICE: $72


Course Highlights

This continuing education online PDH course is NY approved. This course is also accepted in the States of AK, AL, AR, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WI, WV and WY.

The fibrous nature of wood strongly influences how it is used. Wood is primarily composed of hollow, elongate, spindle-shaped cells that are arranged parallel to each other along the trunk of a tree. When lumber and other products are cut from the tree, the characteristics of these fibrous cells and their arrangement affect such properties as strength and shrinkage as well as the grain pattern of the wood. The versatility of wood is demonstrated by a wide variety of products. This variety is a result of a spectrum of desirable physical characteristics or properties among the many species of wood.


This course provides guidance for the efficient use of wood as a construction material. It provides engineers, architects, and others with a source of information on the structure of wood as well as its physical properties; and how these properties are affected by variations in the wood itself.


This online PDH course is applicable to structural engineers, design and construction, and other technical professionals who are interested in gaining a better understanding of the structure and physical properties of wood.


In this course, you need to review Chapters 2 and 3 of the United States Department of Agriculture (USDA) Publication FPL-GTR-113, "Wood as Engineering Material" provided below. Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 3 PDH credits. The quiz will be based on Chapters 2 and 3 of this USDA publication.


Learning Objectives

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

  • Distinguishing between different layers (bark, cambium, heartwood, sapwood and pith
  • Understanding wood cells and growth rings
  • Understanding the chemical composition and identifying the various wood species
  • Familiarization with the various appearances of wood
  • Learning about the moisture content and shrinkage properties
  • Learning about the weight, density and specific gravity of wood
  • Understanding the working qualities and decay resistance of wood
  • Understanding the thermal, electrical and radioactive properties of wood

Course Document

To view, print and study the course document, please click on the following attachment(s):

Wood Structure and its Physical Properties (1.09 MB)

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Course Quiz

To earn your PDH credits, you will need to buy the course and take the quiz by clicking on the following link:

Buy the Course and Take the Quiz

If you have any question, please contact us at info@cedengineering.com.