BS 4978:2007+A2:2017

This standard BS 4978:2007+A2:2017 Visual strength grading of softwood. Specification is classified in these ICS categories:

• 79.040 Wood, sawlogs and sawn timber

This British Standard specifies a methodology for the visual strength grading of softwood for structural use.

The permissible limits of characteristics are specified for two visual strength grades of softwood:

• GS ‒ General Structural; and

• SS ‒ Special Structural.

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