SOUTHERN PINE INSPECTION BUREAU
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The SPIB mark represents quality assurance and reflects our commitment to lead the industry in exacting standards, thorough training, and innovative application of advanced technologies to ensure the integrity of softwood lumber products.
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The Solution for Lumber Grader Training
If you want to learn to grade dimension lumber, or if you just want to become more knowledgeable of the grading rules, the defects and characteristics of lumber, the terminology and theory of dimension lumber grading then this course is for you.
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Lumber Grade-Marking History: 1923
1923 was many things, but it was also among the most important in the entire industry of the Southern Pine Association - as this was the year that grade-marking machines were finally perfected. This, in turn, gave way to the successful development of a comprehensive, holistic plan to establish the practice of grade-marking lumber across the country.
Lumber Grade-Marking History: 1922
1922 was a year that opened with tragedy. The Knickerbocker Storm hit Washington, D.C. on January 28th - still, the biggest ever recorded - and caused the Knickerbocker Theatre to collapse, unfortunately claiming the lives of 98 people.
Lumber Grade-Marking History: 1921
1921 was yet another year during which the world would change forever - however, it was less the product of any one major event and more about a series of smaller ones, taking place "behind the scenes" on the world stage.