What does the grain line on pattern pieces indicate?

What does the grain line on pattern pieces indicate?

• A. The seam line location
• B. The color of the fabric
• C. The direction of the fabric's grain (warp) and how to align the piece with the fabric
• D. The pattern size

Answer: (C)

The grain line shows the direction of the fabric’s grain (warp) and tells you how to place the pattern piece on the fabric so it runs along that straight grain. Placing pieces on grain keeps the garment’s drape, fit, and stability correct because the fibers in the warp and weft behave differently when cut on grain. When you align the pattern with the grain line, the piece will hang evenly and resist twisting or stretching out of shape. This marking isn’t about where seams go, the fabric color, or the pattern size—those involve other considerations. The grain line is the guide for orientation to the fabric’s natural straight grain, typically parallel to the selvage.

The grain line shows the direction of the fabric’s grain (warp) and tells you how to place the pattern piece on the fabric so it runs along that straight grain. Placing pieces on grain keeps the garment’s drape, fit, and stability correct because the fibers in the warp and weft behave differently when cut on grain. When you align the pattern with the grain line, the piece will hang evenly and resist twisting or stretching out of shape.

This marking isn’t about where seams go, the fabric color, or the pattern size—those involve other considerations. The grain line is the guide for orientation to the fabric’s natural straight grain, typically parallel to the selvage.