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This course accepted in:

 

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Abbreviations:

AOP-Areas of Practice

LAR-Laws & Rules

P.E.-Professional Engineers

 

Explore all PDH CEU CPC CPD and Webinars for Engineers

Lumber Stress Grades and Design Properties

Course No. S-1005

Credit: 1 PDH

Course Fee: $28.95 Purchase course

Subject Matter Expert: John Galinski, P.E.

Overview

Lumber sawn from a log, regardless of species and size, is quite variable in mechanical properties. Pieces of lumber sawn from the same log may differ in strength by several hundred percent. For ease of use, lumber with the same mechanical properties are placed in categories, commonly known as stress grades. This course is intended to provide the student with an understanding of how lumber is graded and how the mechanical properties can be adjusted for design use.

In this course, the student will review Chapter 6, Lumber Stress Grades and Design Properties from General Technical Report FPL-GTR-113, “Wood Handbook – Wood as an Engineering Material” published by the Forest Products Laboratory, USDA Forest Service (issued March 1999).

The student must take a multiple-choice quiz consisting of ten (10) questions at the end of this course to earn PDH credits.

 

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • Responsibilities and Standards for Stress Grading
  • Visually Graded Structural Lumber
  • Machine-Graded Structural Lumber
  • Adjustment of Properties for Design Use

 

Course

Click on the following link to the PDF document to review the course material before taking the quiz for credit.

Lumber Stress Grades and Design Properties

 

Having trouble downloading the PDF file?

If clicking the link does not bring you to the PDF file, then right-click the link. Click "Save Target As" and save on your desktop. To view the file, double-click the icon on your desktop and return to this page to take the quiz. You may want to bookmark this page for your convenience. If you have questions, Live Support Chat can help.

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To receive PDH credit for this course, you must pass a multiple-choice quiz. Click the button below to Purchase Course and Take Quiz. To take the quiz, your computer must be set to accept cookies. See how to check your cookie settings.

 

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