What the back of a sewing pattern tells you

The back of a sewing pattern envelope holds the information you need before you buy fabric or cut a single piece. It shows you the finished garment, the size range, how much fabric you need, what notions to buy, and which techniques the pattern uses. Reading it properly takes two minutes and saves you from buying the wrong yardage, the wrong size, or discovering halfway through that you need a zipper you do not have.

The back is divided into sections. Each one answers a specific question: What will this look like when it is finished? What size am I? How much fabric do I need? What else do I have to buy? What skills does this pattern demand? Learning where to find each answer means you can check a pattern in a shop before you commit to it.

Key Takeaways

  • The finished garment photo or sketch at the top shows you what the sewn piece will look like, including all view options if the pattern includes more than one.
  • The size chart lists finished measurements for each size — not your body measurements — so you can choose the right size for the fit you want.
  • Yardage requirements change by size and fabric width, so find your size and your fabric width (usually 45 or 60 inches) before you shop.
  • The notions list tells you every fastener, elastic, and trim you need to buy separately, and you should check it before you leave the shop.
  • The skill indicators and technique list show you whether the pattern uses zippers, buttonholes, or other methods you may need to practice first.

The finished garment image and view options

At the top of the back, you will see a photograph or technical drawing of the finished garment. This is your first check: does it look like what you want to make? If the pattern shows a dress with a collar and you want a collarless dress, this pattern may not be the right choice, even if the size and style seem close.

Many patterns include multiple views — different necklines, sleeve lengths, or closures on the same pattern. The back will label each one (View A, View B, View C) and show how they differ. Read this section carefully. If you want View A but the pattern you are holding is labeled for View B, you have the wrong envelope.

Some patterns also note special features here: "Suitable for knits only" or "Not suitable for stripes" or "Requires 45-inch minimum width." These notes matter. If you have already chosen your fabric, check whether the pattern will work with it before you buy the pattern.

Size and finished measurements

The size chart on the back lists finished garment measurements, not your body measurements. This is the most misread section of a pattern. A size 12 in one pattern is not the same as a size 12 in another. The finished bust measurement is what matters.

Find your size in the left column, then read across to the finished bust, waist, or hip measurement. Compare that number to a garment you own and like the fit of. If you want a loose fit, choose a size with 2 to 4 inches of ease (the difference between your body measurement and the finished measurement). If you want a closer fit, choose a size with less ease. The chart will also show length measurements — check the sleeve length and bodice length against your own proportions, because pattern lengths are standard and may not match your arm length or torso.

Write down the finished measurements for your chosen size. You will need them when you check the yardage chart.

Yardage and fabric width requirements

The yardage chart is organized by size down the left side and fabric width across the top. Fabric width is usually 45 inches or 60 inches. Find your size in the left column, then move right to the column for your fabric width. That number is how much yardage you need to buy.

If your fabric is a special type — a nap fabric like corduroy or velvet, a one-way print, or a striped fabric — the yardage requirement may be higher. The chart will note this with a separate line. Nap fabrics require extra yardage because all pattern pieces must face the same direction. If the chart says "with nap" requires 2.5 yards and "without nap" requires 2 yards, and you are using corduroy, buy 2.5 yards.

Add a quarter yard to your total if you want a safety margin for mistakes or shrinkage. Write down the yardage before you go to the fabric shop so you do not have to remember it or guess.

Notions and fasteners you need to buy

Below the yardage chart, you will see a list of notions — everything the pattern requires that is not fabric. This includes zippers, buttons, elastic, bias tape, thread, and trim. The list specifies size and color when it matters. A pattern might call for "one 7-inch zipper" or "five 5/8-inch buttons" or "1-inch-wide elastic."

Read this list before you leave the shop where you bought the pattern. If you need a 16-inch zipper and the shop only stocks 14-inch, you know now rather than when you are ready to install it. If the pattern calls for a specific type of button and you want to substitute, you can check whether your choice will work. Some patterns note "thread to match" — this means you should buy thread in the color of your finished fabric, not the color of the pattern envelope.

Check the notions list again when you are ready to sew. Patterns sometimes call for items you may already have at home — thread, needles, scissors — but the list will remind you if you need something you do not stock.

Skill level and technique indicators

Many pattern envelopes include a skill level label: beginner, intermediate, or advanced. This is a rough guide. A beginner pattern usually has few pieces, straightforward seams, and no closures like zippers or buttonholes. An intermediate pattern may include a zipper or a collar. An advanced pattern might require tailoring techniques, fitting adjustments, or complex construction.

Below or near the skill level, the back will list the techniques the pattern uses. You might see "Includes zipper installation," "Buttonholes required," or "Collar attachment." If you have never sewn a buttonhole and the pattern requires three of them, you know you will need to practice first or find a pattern without buttonholes. If you are comfortable with zippers but not with tailoring, you can choose a pattern that matches your skills.

Some patterns also note special requirements: "Requires pattern grading" or "Includes full-size pattern pieces" or "Tissue pattern included." These notes tell you what to expect when you open the envelope.

Fabric recommendations and special notes

The back of the pattern usually includes a section on recommended fabrics. This might say "Suitable for cotton, linen, and cotton blends" or "Not suitable for knits" or "Avoid large prints." These notes exist because the pattern was tested on certain fabrics and the designer knows how it behaves.

If you choose a fabric that is not on the recommended list, you are taking a risk. A pattern designed for woven cotton may not fit well in a stretchy knit. A pattern with a small-scale design may look wrong in a large-scale print. You can still use the pattern, but you should understand that the fit or appearance may not match the envelope photo.

Special notes might also cover care instructions, pattern layout, or construction order. Some patterns note "Finished seams recommended" or "French seams required" — these tell you the designer expects a specific finish. Others note "Preshrink fabric" if the pattern is designed for fabric that shrinks.

How to use the back of the pattern when you are shopping

When you are in the shop holding a pattern, use the back as a checklist. First, look at the finished garment image and confirm it is the view you want. Second, find your size and check the finished measurements against a garment you own. Third, locate your fabric width in the yardage chart and write down the yardage. Fourth, read the notions list and check whether the shop has the items you need in the right size and color. Fifth, scan the skill level and technique list to confirm the pattern matches your abilities.

If you are buying fabric at the same time, bring the pattern back with you to the fabric counter. Show the yardage requirement to the person cutting fabric so they cut the right amount. If the pattern notes a nap or one-way layout, mention it — the cutter may be able to help you position the pattern on the bolt to avoid waste.

Frequently Asked Questions

What is the difference between finished measurements and body measurements?

Finished measurements are the size of the garment after it is sewn. Body measurements are your measurements. A finished bust of 38 inches with your 36-inch bust gives you 2 inches of ease — a close fit. A finished bust of 42 inches gives you 6 inches of ease — a loose fit. The pattern size number does not tell you ease; the finished measurement does.

Why does yardage change by fabric width?

Pattern pieces are arranged on the fabric to use as little yardage as possible. A 60-inch-wide fabric allows the pattern pieces to be arranged differently than a 45-inch-wide fabric, so you may need less yardage with the wider fabric. Always use the yardage for the width you are actually buying.

Can I ignore the notions list if I think I have everything at home?

You should still read it. The pattern may call for a specific size zipper or a particular type of elastic that you do not have. If you skip the list and discover halfway through that you need a 16-inch zipper and only have a 14-inch, you will have to stop and shop again.

What does "with nap" mean in the yardage chart?

Nap fabrics like corduroy, velvet, and some prints have a direction — they look different depending which way you run your hand across them. All pattern pieces must face the same direction, which uses more fabric. If your fabric has a nap, use the "with nap" yardage, not the standard yardage.

Should I buy the exact notions the pattern calls for, or can I substitute?

You can substitute most notions — buttons, elastic, and trim — as long as the size and type are similar. A 5/8-inch button is a 5/8-inch button whether it is plastic or wood. A 1-inch-wide elastic is a 1-inch-wide elastic. Zippers are more particular; if the pattern calls for a 16-inch zipper, a 14-inch zipper will not work. Check the length and type before you substitute.