IAW AMERICAN SOFTWOOD LUMBER STANDARD VOLUNTARY PRODUCT STANDARD PS-20-05; MUST HAVE STAMP FROM ACCREDITED AGENCY APPROVED BY BOARD OF REVIEW OF AMERICAN LUMBER STANDARDS COMMITTEE; HEAT TREATMENT STAMP AND ANTI-STAIN TREATMENT REQUIRED; ANY STAGE OF MOISTURE CONTENT; ROUGH SURFACING; 15.000 INCHES IN THICKNESS BY 15.000 INCHES IN WIDTH BY 16.000 FEET IN LENGTH