How to read a sewing pattern

Start with the envelope or cover sheet for sizes, fabric and notions, then read the instructions through once, then find the symbols on the pieces: grainline, fold, notches, dots and cutting lines.

Beginner20 minutes

ResearchedSewSift editorialChecked 1 Nov 2026

Pinny's tip
Read the whole instruction sheet once before you cut. It saves most beginner mistakes.

What you'll need

The pattern: envelope, instructions and tissue or PDF pieces.
Highlighter: to mark your size line.
Notebook: to note changes.

Step by step

Check the size chart against your body measurements, not your shop size.
Read the fabric suggestions and the amount needed for your size and fabric width.
Find the cutting layout for your size and fabric width.
Learn the symbols: grainline arrow, place-on-fold bracket, notches (triangles), dots and lengthen/shorten lines.
Read the instructions start to finish before you cut.

Watch

How to understand sewing patterns (for beginners!) (10:04)
By vintage thirsty · Open on YouTube

The video this technique page has always pointed to, a 10-minute one from vintage thirsty. Embedded from YouTube with credit; we don't host it. It only loads when you press play.

Common mistakes

Buying by shop size. Pattern sizes run differently; use measurements.
Ignoring the grainline. The garment hangs crooked.
Not transferring markings. Dots and notches are how pieces line up later.

Watch it done

How to understand sewing patterns (for beginners!) by vintage thirsty on YouTube. Opens on YouTube; the video belongs to its creator.
How To Read a Sewing Pattern For Beginners || Beginner Sewing Skills (How To Sew Clothes) by Madison Lynn on YouTube. Opens on YouTube; the video belongs to its creator.
15 Tips for Reading Sewing Instructions! by Catherine Sews on YouTube. Opens on YouTube; the video belongs to its creator.

Sources

All checked 1 November 2026. We read these; we did not test the products ourselves.