Rectangular Diamond Trellis Basket: Free Crochet Pattern

If you have been searching for a crochet project that blends elegance with everyday practicality, this rectangular diamond trellis basket is exactly what you need. It features an eye-catching diamond mesh design worked in a structured rectangular shape, making it sturdy enough to hold yarn, books, toiletries, or anything else you want to keep organized around your home. Best of all, this is a completely free crochet pattern that works up beautifully for beginners who have mastered basic stitches and is satisfying enough to keep intermediate crocheters genuinely engaged from start to finish.

In this post, you will find everything you need: materials, gauge information, stitch explanations, sizing details, step-by-step instructions, and finishing tips. Grab your hook and your favorite cotton or jute yarn, and let’s make something beautiful together.

Why You Will Love This Pattern

There is something deeply satisfying about a basket you made yourself. Store-bought baskets are fine, but when visitors admire the open lacework on your trellis basket and you get to say, “Oh, that? I crocheted it,” — that feeling is unmatched.

The diamond trellis stitch creates an elegant open mesh pattern that allows the basket to show off whatever yarn you choose. A natural jute gives it a rustic, farmhouse feel. A chunky cotton rope makes it look modern and minimal. A variegated yarn turns the diamond lattice into a kaleidoscope of color. The stitch is incredibly versatile, and once you learn the simple chain-space repeat, the whole pattern flows almost on autopilot.

Functionally, the rectangular shape is what makes this basket especially practical. Unlike round baskets that can waste space on a shelf, a rectangle fits neatly into corners, lines up with the edge of a bookshelf, and tucks under a bathroom vanity without wasted real estate. The flat bottom gives it stability so it won’t tip over, and a solid base means smaller items won’t fall through the decorative sides.

Whether you make this as a gift, a home décor accent, or a utility storage piece in your craft room, this basket will earn its place in your space immediately.

Materials You Will Need

Before you cast on, gather your materials so the process goes smoothly from beginning to end.

Yarn: Approximately 200–300 yards of bulky weight yarn (weight 5 or 6). Cotton rope yarn, jute twine, or a stiff cotton blend works best because these fibers hold their structure. Soft acrylic will work, but the basket may be floppier and benefit from a cardboard or fabric insert at the base.

Hook: 6.5mm (K/10.5) crochet hook. If you prefer a stiffer fabric, try going down half a size to a 6mm. If your hands tend to crochet tightly, go up to a 7mm.

Notions: Scissors, yarn needle for weaving in ends, stitch markers (optional but helpful when counting repeats), a ruler or measuring tape.

Optional: Fabric stiffener spray if you want an extra-firm finish, or a small piece of cardboard or cork board cut to fit inside the base.

Gauge

Gauge matters more for baskets than many crocheters expect, because even a small difference multiplies across many rows and can change your finished dimensions significantly.

Gauge: 12 stitches and 8 rows = 4 inches (10 cm) in half double crochet using bulky weight yarn and a 6.5mm hook.

For the trellis mesh portion, approximately 2 diamond repeats = 3 inches in width.

If your gauge is off, adjust your hook size accordingly. A firm, structured fabric is the goal, so err on the side of a tighter gauge rather than a looser one.

Finished Dimensions

The finished basket measures approximately 12 inches long by 7 inches wide by 6 inches tall. These dimensions make it ideal for a vanity tray, a remote control holder on a coffee table, a bread basket for the kitchen, or a yarn and notions holder beside your favorite chair.

If you want to make a larger version, simply add additional chain multiples to the foundation in increments of 4 to maintain the diamond repeat.

Stitch Abbreviations

Throughout this pattern, the following abbreviations are used:

ch — chain
sl st — slip stitch
sc — single crochet
hdc — half double crochet
dc — double crochet
sp — space
sk — skip
rep — repeat
st(s) — stitch(es)
RS — right side
WS — wrong side
blo — back loop only

Special Stitches

Diamond Trellis Repeat: The diamond pattern is created by working chain spaces over skipped stitches, then connecting them with single crochets worked into the spaces from the previous row. The diamonds form naturally as the chain arcs alternate in a staggered pattern. Once you have worked two rows of the repeat, the visual rhythm becomes intuitive and easy to maintain.

Join-as-you-go sides: The sides of this basket are worked in the round after the base is complete. You will pick up stitches around the perimeter of the base and work upward.

Pattern Instructions

Part One: The Base

The base is worked flat in rows of half double crochet. A firm, solid base gives the basket its structural foundation and prevents items inside from falling through the mesh sides.

Foundation Chain: Chain 38. This gives you a foundation for a base approximately 12 inches long.

Row 1: Starting in the third chain from the hook, hdc across. You will have 36 hdc. Chain 2, turn.

Rows 2 through 12: Hdc across each row, working into both loops of each stitch. Chain 2, turn at the end of each row. After row 12, do not turn. Do not fasten off.

Your base should now measure approximately 12 inches by 7 inches. If it is shorter, work additional rows in sets of 2 until you reach 7 inches. If it is longer, simply stop a row or two early.

Part Two: Picking Up Stitches Around the Base

Now you will work a foundation row of single crochets around the entire perimeter of the base. This creates a clean, even edge from which the trellis sides will grow.

Round 1 (Foundation Edge): Working with the right side facing you, sc evenly around all four sides of the base. Along the long sides, work 1 sc into each stitch (36 sc per long side). Along the short sides, work approximately 22 sc evenly spaced by working into the row ends. Work 2 sc in each corner stitch to keep the corners from pulling inward. Join with a slip stitch to the first sc. Do not turn.

You should have approximately 120 stitches around the perimeter. The exact number is not critical as long as it is a multiple of 4 (for the diamond repeat) plus any corner adjustments.

Round 2: Chain 1, sc in each stitch around. Join with a slip stitch. This second round smooths out any inconsistencies from the pick-up row.

Part Three: The Diamond Trellis Sides

This is where the basket becomes truly beautiful. The trellis pattern creates open diamond shapes that give the sides an elegant, airy texture while still providing enough structure to hold the basket’s shape.

Round 3 (Set-up Round): Chain 4 (this counts as dc + ch 1). Skip 1 stitch, dc in next stitch. Ch 1, skip 1, dc in next stitch. Repeat from around. Join with a slip stitch to the 3rd chain of the beginning ch-4.

Round 4 (First Trellis Round): Slip stitch into the first chain-1 space. Chain 1, sc in same space. Ch 3, sc in next ch-1 sp. Repeat from around. When you reach the end, ch 1, hdc into the first sc to form the final “chain-3” space and keep your stitch count accurate. This creates the angled arcs that begin to form the diamond shapes.

Round 5: Chain 1, sc in the space formed by the hdc join. Ch 3, sc in next ch-3 sp. Repeat from around. End by working ch 1, hdc into the first sc to close the round.

Round 6: Repeat Round 5.

Round 7 (Closing Diamond Round): Chain 3 (counts as dc). Dc in next ch-3 sp, ch 1, dc in same sp, ch 1. Repeat from around. Join to top of beginning ch-3. This round closes the diamond shapes by pulling the open arcs back together at their widest point.

Round 8: Chain 1, sc in each dc and each ch-1 sp around. Join with a slip stitch. Count your stitches here to make sure you are back to your original stitch count before beginning the next trellis section.

Rounds 9 through 14: Repeat Rounds 3 through 8 once more. This gives you two full tiers of diamond trellis, which creates the 6-inch wall height.

If you want a taller basket, simply repeat Rounds 3 through 8 a third time before moving on to the border.

Part Four: The Rim

The rim finishes the top edge of the basket with a neat, sturdy border that helps the basket hold its shape and gives the top a polished look.

Rim Round 1: Chain 2 (counts as hdc). Hdc in each stitch around. Join with a slip stitch to top of ch-2.

Rim Round 2: Chain 1, sc in each stitch around. Join with a slip stitch.

Rim Round 3: Work a reverse single crochet (also called crab stitch) around the entire top edge for a corded finish that looks tidy and feels substantial in the hand. To work reverse sc, do not turn your work. Working from left to right (opposite of normal direction), insert hook into the next stitch to your right, pull up a loop, and draw through both loops on hook. Continue all the way around. Join and fasten off.

Part Five: Handles (Optional)

Handles make this basket extra functional, allowing you to carry it easily from room to room. These are simple chain loops attached at either end of the basket.

To make each handle: Join yarn at the center of one short end of the rim, approximately 3 stitches in from each side. Chain 20 (or more for a longer handle). Count 6 stitches along the rim and attach the chain with a slip stitch. Work back along the chain with sl st or sc to reinforce the loop. Fasten off and weave in ends. Repeat on the opposite short end.

Finishing Your Basket

Weave in all ends carefully using your yarn needle. Take your time here because tails left loose in an open mesh pattern have a way of working themselves visible with use.

Block your basket if needed. For cotton or jute, a light spray of water and shaping by hand works beautifully. Stuff the inside with plastic bags or crumpled newspaper while it dries to help it hold its rectangular shape. Allow it to dry completely before using.

If you want an extra-crisp finish, a light misting with liquid starch or fabric stiffener will give the basket remarkable structural integrity. This is especially helpful if you used a softer yarn.

To add a solid base insert, cut a piece of cardboard, thin cork board, or foam board to fit the bottom interior. Wrap it in fabric if you like, or leave it plain. Drop it into the finished basket and it will keep the bottom firm and flat.

Yarn Substitution Ideas

Part of the joy of this pattern is how dramatically different it can look depending on your yarn choice.

Macramé rope (3mm or 5mm cotton): Creates an extremely firm, structured basket with beautiful texture in the diamond spaces. Natural cotton gives it an instant boho-farmhouse look.

Jute twine: Rustic and earthy. Works up into a basket that looks right at home on a kitchen counter holding potatoes or onions. Note that jute can be rough on the hands, so take breaks if needed.

Chunky wool or wool blend: Produces a softer, cozier basket that works beautifully in a bedroom or nursery. The basket will be less rigid but still very usable with an insert.

Recycled cotton: Eco-friendly and widely available in beautiful colors. Gives the finished basket a soft, matte finish with good structure.

T-shirt yarn (jersey yarn): Trendy and colorful, this gives you a basket that is flexible but durable. Great for a child’s room because it is soft and washable.

Troubleshooting Common Issues

The sides are flaring outward: This usually means your tension loosened as you moved from the solid base into the open mesh. Try going down half a hook size for the trellis rounds, or work your chain spaces with intentionally tighter tension.

The corners are rounding: Make sure you placed enough stitches in the corner pick-up round. Adding an extra sc in each corner and working with firmer tension through the trellis should keep the rectangular shape intact.

The diamond shapes look uneven: Count your chain-3 spaces at the end of each trellis round before continuing. An extra or missing sc can throw off the whole repeat. Using stitch markers at the beginning of each round helps you track your progress.

The base is buckling: This can happen if the base has too many rows relative to the number of stitches per row, creating a rectangle that wants to curl. Blocking usually resolves this entirely. If it persists, adding a cardboard insert solves it completely.

Ways to Customize This Pattern

Once you have made this basket once and feel comfortable with the structure, the customization possibilities are nearly endless.

Change the proportions by adjusting the starting chain and the number of base rows to create a square basket, a long narrow tray, or a deeper hamper-style basket.

Add color by working the base in one color and the trellis sides in another, or by changing colors at each diamond tier for a striped effect that plays beautifully with the open mesh.

Work the trellis in a larger chain (ch 4 or ch 5 instead of ch 3) for bigger, more open diamonds that create a more dramatic lacy look.

Line the basket with fabric by sewing a simple rectangular liner from cotton or linen and dropping it inside. This transforms it into a functional storage piece for small items that might otherwise fall through the mesh.

Making Multiple Baskets as a Set

A set of three baskets in graduated sizes looks stunning on a bathroom vanity or in an office. Use the same yarn for a cohesive look, or choose a coordinating color family to create something that feels both intentional and collected.

To size up or down, simply adjust your starting chain in multiples of 4. A chain of 26 creates a small version approximately 8 inches long. A chain of 50 creates a large version approaching 16 inches. The height can stay the same or be adjusted by adding or removing one complete trellis tier.

Final Thoughts

The rectangular diamond trellis basket is one of those patterns that earns its keep in your project queue. It is beautiful enough to be a gift, practical enough to use every day, and satisfying enough that you will likely want to make one in every yarn you have been saving for the right project. The diamond trellis stitch looks far more complicated than it is, which means this basket will always earn compliments that outpace the effort it required.

Take your time on the pick-up round, trust the pattern through those first few trellis rows while the diamonds are still forming, and give your finished basket a good blocking before you decide whether it needs any adjustments. Most of the time, you will be delighted with how it turns out right off the hook.

If you make this basket, share a photo in the comments or tag it on social media — seeing your versions in all the different yarns and colors is one of the best parts of sharing free patterns. Happy crocheting!