2001 ASD Supplements - unprotected PDF - American Wood Council

ASD WOOD FRAME STRUCTURAL CONSTRUCTION PANELS SUPPLEMENTMANUALPrefaceThis Supplement contains adjustment factors, sectionproperties, design capacities, load-span tables, and otherproperties required to design wood structural panels in theASD format. Design capacities are based on data from testingconducted by APA – The Engineered Wood Associationand other organizations. Application recommendationsgiven herein have been developed by APA through fieldexperience and laboratory testing over more than 60 years.Wood structural sheathing and floor panels are classifiedby span rating. Panel span ratings identify the maximumrecommended support spacings for these specific end uses.Design capacities are provided on the basis of the span ratings.For sanded plywood panels, design capacities areprovided on the basis of nominal thickness of panels identifiedas having species Group 1 faces.The design capacities tabulated in this Supplementare used in conjunction with the design methodologiesprovided in ANSI/AF&PA NDS-2001, National DesignSpecification ® (NDS ® ) for Wood Construction.The tabulated design capacities are to be used withinthe reference end-use conditions defined therein. Whenthe end-use conditions fall outside the range of the referenceconditions in the tables, the design capacities shallbe adjusted by the product of the applicable factors definedin this Supplement, or contact one of the inspectionand testing agencies listed in Section 6.4 of this Supplement.APA – The Engineered Wood Association