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DSF/INSTA 142

Visual strength grading of Nordic T- and LT-timber

pending
Organization: DS
Status: pending
Page Count: 31
scope:

This INSTA Standard identifies the characteristics and defines grading specifications for visual strength grading of sawn timber to be used for load-bearing structural purposes. A piece of timber with a notable extent of hungerwood may not be graded according to this standard. This standard covers the species defined in Annex A1 and grown in the geographical areas defined in the same annex. Defined by the dimensions and intended use of the timber, three different sets of requirements are given. They are for: timber with thickness t ? 45 mm or width b > 75 mm timber with thickness 25 mm ? t ? 45 mm and width 50 mm ? b ? 75 mm timber with thickness ? 50 mm for the manufacture of glued laminated timber. NOTE: For requirements concerning treated timber see EN 14081-1 and EN 15228.

Document History

June 18, 2009
Nordic visual strength grading rules for timber
This INSTA Standard identifies the characteristics and defines grading specifications for visual strength grading of sawn timber to be used for load-bearing structural purposes. This INSTA standard...
DSF/INSTA 142
Visual strength grading of Nordic T- and LT-timber
This INSTA Standard identifies the characteristics and defines grading specifications for visual strength grading of sawn timber to be used for load-bearing structural purposes. A piece of timber...
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