This European Standard specifies a method of strength grading tropical hardwood visually for structural use. The permissible limits of characteristics for a single visual strength grade of timber are specified, designated "Structural Tropical Hardwood" (STH) grade. The method is only suitable for pieces of timber with a rectangular cross-section that is constant along their lengths. Characteristics related to durability are not covered in this standard. For some end uses, additional requirements may be specified at the time of grading, e. g. sapwood exclusion.
EN 16737:2016 Referenced Document
EN 1310:1997 Round and sawn timber - Method of measurement of features
EN 13556:2003 Round and sawn timber - Nomenclature of timbers used in Europe
EN 14081-1:2016 Timber structures - Strength graded structural timber with rectangular cross section - Part 1: General requirements
EN 1912:2012 Structural Timber - Strength classes - Assignment of visual grades and species (Incorporating corrigendum August 2013)
EN 336:2013 Structural timber - Sizes, permitted deviations*， 2024-04-20 Update
EN 350-2:1994 Durability of Wood and Wood-Based Products - Natural Durability of Solid Wood Part 2: Guide to Natural Durability and Treatability of Selected Wood Species of Importance in Europe
EN 384:2010 Structural timber - Determination of characteristic values of mechanical properties and density
EN 844-12:2000 Round and sawn timber - Terminology - Part 12: Additional terms and general index*， 2024-04-20 Update
EN 844-3:1995 Round and sawn timber - Terminoloy - Part 3: General terms relating to sawn timber
EN 844-9:1997 Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber