Beginner sewing · Informational

Sewing Pattern Symbols Explained

Understand common sewing pattern symbols such as grainlines, notches, darts and cutting lines before you cut.

Sewing pattern symbols and notches

The pattern tells you what to do

Symbols communicate construction information without long paragraphs. Read the key and the product-specific guide before cutting so you interpret the marks in the context of the design.

Marks to recognize

A grainline shows the pattern’s intended relationship to the fabric. Notches mark matching points. Cutting lines show the outer edge, while darts and fold lines indicate shaping or construction.

Make a quick checklist

Before cutting, confirm the grainline, size, notches, seam allowance and any special construction marks. A photograph of the laid-out pattern can help you spot an error.

Ready to choose a pattern?

Compare the verified sizes, formats and included files on the product pages below.