The book refers to a number of studies ... The Cisco study showed a tremendous variability in inspection ratesfor a lot of reasons. But engineers achieved the best results wheninspecting at about 300 ...
The Pacific Lumber Inspection Bureau has published a new 2024 edition of its grading rules book, WCLB Standard Grading Rules for West Coast & Imported Softwood Lumber, No. 18, 2024.
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