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A stamp giving strength class, moisture and certification.
Also known as: Strength class marking, C16 C24 stamp
Structural timber carries a stamp giving its strength class, the grading body and often a moisture content code. Timber without a grade stamp cannot be used structurally under building regulations, so the stamp is a legal document rather than a label.
States a piece of timber's strength class, grading body and moisture condition, stamped on the face.
Contexts: Packaging, Technical drawing
Is required for structural use under building regulations, so ungraded timber cannot lawfully be used in a load-bearing role however sound it appears.
Contexts: Packaging, Technical drawing
A stamped rectangle on a timber face containing a letter and numerals, a grader's name and small marks.