Easy Zipper Box Bag Tutorial | Crochet
If you’ve been crocheting for a while and you’re ready to take your projects to the next level, making a zippered box bag is one of the most satisfying things you can do with a hook and some yarn. It looks impressive, it’s genuinely useful, and once you understand the construction, you’ll want to make a dozen of them. This tutorial will walk you through everything you need to know to create a beautiful, structured crochet zipper box bag from start to finish — even if you’ve never attached a zipper to a crochet project before.
Let’s get into it.
What Is a Crochet Zipper Box Bag?
A zipper box bag is a small-to-medium structured bag with a flat bottom, straight sides, and a zipper closure along the top. The “box” refers to the shape — when finished, the bag holds its form and looks almost like a little rectangular box. These bags are incredibly popular for storing makeup, crochet hooks, small accessories, art supplies, or anything else that gets lost at the bottom of a larger bag.
What makes the crochet version so special is the texture. The stitches give the bag beautiful visual interest, and when you work with a tighter gauge using a smaller hook than the yarn calls for, you get a firm, structured fabric that holds its shape beautifully without any interfacing or stabilizer. Add a fabric lining and a zipper, and you have something that looks like it came from a boutique shop.
Materials You’ll Need
Before you cast on (or, well, make your slip knot), gather everything you need so you’re not hunting around mid-project. Here’s what you’ll need to complete this bag:
Yarn: Approximately 150–200 yards of worsted weight yarn (size 4). Cotton yarn works exceptionally well for this project because it’s sturdy, holds its shape, and doesn’t stretch out over time. Some great options are Lion Brand 24/7 Cotton, Paintbox Simply DK (held double), or any cotton-blend worsted you love. You can also use a chunky yarn held with a smaller hook to create extra stiffness.
Hook: A 4.0mm or 4.5mm crochet hook. Going down a size from what your yarn recommends will give you a tighter, denser fabric — exactly what you want for a structured bag.
Zipper: A 9-inch or 10-inch zipper in a color that complements your yarn. Metal zippers give a more luxurious feel, but nylon coil zippers work just as well and come in every color imaginable. You can find these at fabric stores or online.
Lining fabric: A quarter yard of cotton quilting fabric or any sturdy cotton fabric. This is optional but highly recommended — it finishes the inside of the bag beautifully and adds extra structure.
Notions: A yarn needle (also called a tapestry needle), scissors, straight pins, a hand-sewing needle, and thread that matches your zipper tape or fabric. A ruler or measuring tape will also be helpful.
Stitch markers: These will help you keep track of your rounds, especially as you work the flat bottom of the bag.
Finished Dimensions
This tutorial will produce a bag that is approximately 9 inches wide, 5 inches tall, and 2.5 inches deep. These dimensions are perfect for a makeup bag or pencil pouch. If you want a larger or smaller bag, the instructions for adjusting the foundation chain are included in the pattern notes below.
Abbreviations and Stitches Used
This pattern is written in US crochet terms.
ch — chain
sl st — slip stitch
sc — single crochet
hdc — half double crochet
BLO — back loop only
st — stitch
sp — space
rnd — round
rep — repeat
The main stitch used throughout this bag is the single crochet and the half double crochet. If you can do those, you can make this bag. The boxed bottom is created by working into a foundation chain oval, and the sides are worked in continuous rounds. The texture on the sides comes from working through the back loop only on certain rows, which creates a subtle ribbed effect and helps the bag keep its shape.
Pattern Notes
The bag is worked in one continuous piece — you start with the flat oval bottom and then work upward in rounds to build the sides. This seamless construction means no awkward seaming and a very clean finished look.
If you want to adjust the size, simply increase or decrease your starting chain. Every 2 additional chains adds roughly half an inch to the length of the bag. Keep the width at the same number of side stitches unless you specifically want a wider or narrower bag.
Gauge for this project is approximately 16 single crochet stitches and 18 rows = 4 inches using a 4.0mm hook and worsted weight cotton. Gauge isn’t critical here, but it will affect your finished size, so keep that in mind.
Step-by-Step Tutorial
Step 1: Create the Oval Base
The oval base is the foundation of your box bag. It’s worked back and forth into a foundation chain, picking up stitches along both sides to create an oval shape.
Start by chaining 25. If your chain tends to be tight, go up half a hook size just for the chain, then switch back for the rest of the project.
Round 1: Starting in the second chain from the hook, work 2 sc in that first stitch. Then sc across until you reach the last chain — that’s 23 sc across. Work 3 sc into the last chain. Now rotate your work and pick up stitches along the other side of the foundation chain. Sc in each chain all the way back to the beginning — 23 sc. Work 1 more sc into the first stitch (the same one where you started). Join with a sl st if you prefer joined rounds, or place a stitch marker and continue in continuous rounds.
You should have approximately 52 stitches in this first round.
Round 2: Work 2 sc in each of the first 2 sts (the increase stitches at the end of the oval). Sc across the long side — 23 sts. Work 2 sc in each of the next 3 sts at the other end. Sc across the remaining long side — 23 sts. Work 2 sc in the last stitch. You’ll have approximately 60 stitches.
Round 3: Continue increasing at the ends of the oval. Work [sc, 2 sc] twice at one end, sc across the long side, work [sc, 2 sc] three times at the other end, sc across the long side, and then work [sc, 2 sc] once more. You’ll have approximately 68 stitches.
The oval should now measure roughly 9 inches by 3 inches. If it needs to be a little wider, add one more increase round following the same pattern of increasing at the ends.
Step 2: Build the Sides
Once your oval base is the right size, you’ll begin working the sides of the bag straight upward. This is where the magic happens — the sides will naturally fold up at a right angle when you work this way.
Round 1 of sides: Working into the BLO (back loop only) of every stitch around, work 1 sc in each stitch. This creates a crisp fold at the base of the bag and is the trick that gives the bag its boxy shape. Do not increase or decrease — work 1 sc in every stitch.
Rounds 2–20 of sides: Work 1 hdc in each stitch around, working through both loops. Continue in continuous rounds (or joined rounds if you prefer) until the bag measures approximately 5 inches tall from the base fold. This will take roughly 18–20 rounds depending on your gauge and your hook size.
If you want a taller bag, simply keep going. If you want a shorter bag, stop a few rounds early. The sides should be firm and not floppy — if they’re folding over, try going down a hook size or switching to a denser stitch.
Final round of sides: Work 1 sc in each stitch around for a clean, even top edge. This provides a slightly tighter edge that will make attaching the zipper easier.
Fasten off and weave in your ends.
Step 3: Block the Bag
Before you attach your zipper, take a moment to block the bag. For cotton yarn, this is as simple as getting it wet, reshaping it with your hands, and letting it dry. Stuff the bag with plastic bags or a hand towel to help it hold its boxy shape while it dries.
Blocking makes a huge difference in the finished look. It evens out the stitches, reinforces the shape, and makes it much easier to attach the zipper neatly.
Step 4: Sew in the Lining
The lining is what takes this bag from a craft project to something you’d actually find in a shop. It’s easier than it sounds, and even if you’re not a confident sewist, this is a very forgiving step.
Cut two pieces of your lining fabric to the size of the bag’s opening plus a seam allowance. If your bag opening is 9 inches by 5 inches, cut two pieces that are 9.5 inches by 5.5 inches.
Sew them together along the bottom and both sides with a half-inch seam allowance, leaving the top open. Press the seams open with an iron. Fold the top edge down by half an inch and press it, too.
Slip the lining inside the bag with the wrong side of the lining facing the inside of the bag. Pin it in place around the top edge so the folded edge of the lining sits just below the top rim of the crocheted bag. Use a hand-sewing needle and thread to whipstitch the lining to the inside of the bag, stitching through the crochet fabric and catching the folded edge of the lining.
If you skip the lining, you’ll still get a functional bag, but small items tend to poke through the crochet stitches over time. The lining solves that problem completely.
Step 5: Attach the Zipper
This is the step that intimidates most crocheters, but I promise it’s not as scary as it looks. Take it slowly, and use plenty of pins.
Open the zipper. Lay it face-down along the top edge of the bag, with the zipper tape aligned with the top edge of the crochet. The teeth should be pointing inward (toward the inside of the bag when you fold it in). Pin the zipper tape in place.
Using a hand-sewing needle and a strong thread (or doubled regular thread), sew the zipper to the bag using a whipstitch or backstitch. Stitch through the zipper tape and through the crochet stitches along the top edge, keeping your stitches as even and close together as possible.
Repeat on the other side, making sure the zipper is centered and the two sides of the bag line up evenly.
Once the zipper is sewn in, fold the short ends of the zipper tape under and stitch them down neatly. This prevents the zipper pull from coming off the end.
If you’ve lined the bag, your lining will cover the inside of the zipper tape, giving the bag a very polished look. You can tack the lining up over the zipper tape with a few stitches to keep it tidy.
Step 6: Finishing Touches
Zip the bag shut and have a good look at it. If the zipper pulls to one side or the bag looks slightly uneven, a little extra hand stitching will sort it right out. Press the bag gently one more time if needed.
You can add a zipper pull charm if you like — a small piece of yarn tied through the hole on the zipper pull, a keyring charm, or a tassel all look wonderful. This is a great chance to use up scraps of yarn and add some personality to the finished bag.
Tips for Success
There are a few things that will make your first zipper box bag go much more smoothly. Using cotton yarn rather than acrylic makes a significant difference in the stiffness and structure of the finished bag. Acrylic has more stretch and tends to make the bag look a little loose over time, while cotton keeps its shape wash after wash.
Working with a smaller hook than recommended is not a mistake — it’s the technique. The resulting fabric will feel almost stiff when you first hold it, but that’s exactly what you want for a bag that holds its shape.
When sewing the zipper, don’t rush. Even stitches that are slightly visible from the outside can look charming and handmade-chic, so don’t stress about perfection. What you do want to make sure of is that the zipper tape is securely attached — a zipper that comes loose after a few uses is frustrating.
If this is your first time attaching a zipper to a crochet project, practice on a small swatch first. Sewing into crochet fabric feels different from sewing into woven fabric, and a practice run will help you find your rhythm before you work on the actual bag.
Variations and Customization Ideas
One of the best things about this pattern is how easily it adapts to different looks and purposes.
For a color-blocked version, work the base and the first several rounds of the sides in one color, then switch to a contrasting color for the upper portion of the bag. The color change creates a clean, modern look.
For a textured version, substitute the hdc rounds on the sides with a stitch like the moss stitch (alternating sc and ch-1) or the linen stitch. Both create beautiful texture while still maintaining a firm fabric.
For a larger bag, start with a longer foundation chain — try 35 or 40 chains — and work more rounds on the sides to increase the height proportionally.
For a small coin purse version, start with a chain of 15 and use a 3.5mm hook with DK weight yarn. The finished bag will be about 5 inches wide and 3 inches tall — perfect for coins, earbuds, or lip balm.
You can also add exterior pockets by crocheting a small flat rectangle and attaching it to the outside of the bag before sewing in the lining. A magnetic snap closure can be used instead of or in addition to a zipper if you prefer.
Caring for Your Crochet Zipper Bag
If you’ve used cotton yarn and a cotton lining, your bag is machine washable on a gentle cycle in cold water. Lay it flat to dry and reshape it while it’s still damp. Avoid putting it in the dryer, as this can warp the zipper and shrink the lining fabric at a different rate than the crochet fabric.
For bags made with acrylic yarn, check the yarn label — most acrylic is machine washable, but some specialty yarns are hand-wash only.
Why You’ll Love Making This Pattern
Crochet bags are having a major moment right now, and for good reason. Handmade bags are unique, sustainable, and deeply personal in a way that mass-produced accessories simply can’t match. A crochet zipper box bag is the kind of project that people will notice and ask about — and when you tell them you made it yourself, they’ll be genuinely amazed.
This pattern also makes a spectacular gift. It’s practical, beautiful, and suits almost everyone. Make one in a friend’s favorite color, line it with a fun print fabric that matches their personality, and you have a handmade gift that will be used every single day.
For the crocheter, this project builds real skills. Learning to work an oval base, construct a three-dimensional shape in the round, and attach a zipper by hand are all techniques that will open up a whole world of bag-making projects. Once you’ve made one of these, you’ll have the confidence to tackle tote bags, backpacks, and beyond.
Whether you’re making this bag for yourself or as a gift, take your time, enjoy the process, and don’t be afraid of the zipper. You’ve got this — and when you hold the finished bag in your hands, every stitch will have been absolutely worth it.
Happy hooking, and I hope this tutorial helps you create something you’re truly proud of. If you make this bag, I’d love to see it — share your finished project and tag it so other crocheters can see your beautiful work and get inspired to make their own.
