B-R13

Grain and fold direction — Reference record

The relationship between material direction and fold direction belongs in the construction record. Keep it visible when the outline is rotated.

Grain and fold direction
Illustrative reference; not a tested product or a certification.
Reference recordWorking notes
OverviewGrain and fold direction
Practical examplePlace a direction arrow beside the flat pattern and repeat it on the assembly sketch.
Limits and interpretationA diagram cannot replace testing and judgement for a specific material.
Document controlReference edition 2026.11
Measurements and examples are descriptive, not acceptance criteria.

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