Dense Industrial 65
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Third Party Inspection

Indian Mill is a member in good standing with Timber Products Inspection Bureau (TPI) and in compliance with the American Lumber Standards Committee, Inc. (ALSC)
American Lumber Standards Committee was established by the consent decree of the Department of Commerce

  • Department of Commerce
  • American Lumber Standards Committee (ALSC)
  • Timber Products Inspection (TPI) (largest of 22 grading agiencies sanctioned by ALSC)
  • Indian Mill (one of 400 grade stamp subscribers under TPI)

Timber Products Inspection Bureau is the largest independent wood products quality auditing and testing agency in the United States. While some agencies are specific to a region (Western Wood) or to a species of tree (SPIB), Timber Products encompasses all lumber and all regions throughout the entire country. Timber Products Inspection is the only approved grading agency that has representation in all regions of the United States. Under TPI authority, Indian Mill performs lumber inspections, grade stamping and heat treating as mill TP#650 for DI-65 planks and Select Structural Scaffold Plank.


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