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If you are looking for a soft, simple, and eye-catching baby blanket, this Crochet Treble Triangles Baby Blanket is a lovely project to add to your handmade collection. The pattern creates a repeating triangle design using a combination of single crochet and treble crochet stitches.
This blanket is especially suitable for a nursery or baby shower gift. The texture is subtle but beautiful, and the geometric design gives the finished blanket a modern handmade look.
The original blanket was made during a busy season of moving into a new home and caring for baby Nora. Even with limited crochet time, the finished project proved to be well worth the effort. The result is a cozy blanket that is soft, practical, and perfect for snuggling.
Why You’ll Love This Pattern
The Treble Triangles pattern is easy to customize and works beautifully in a single color or with multiple shades. The stitches are straightforward once you become familiar with the treble crochet, making this a relaxing project for crocheters who already know the basic stitches.
The blanket also has a wonderful combination of softness and durability. A machine-washable polyester yarn makes it practical for everyday baby use, while the textured stitch pattern gives it plenty of visual interest.
Materials
- Bernat Bundle Up, 100% polyester
- 140 g / 4.9 oz per skein
- Approximately 244 m / 267 yds per skein
- 4 skeins in Posy
- H/5.00 mm crochet hook
- Tapestry needle
- Scissors
Finished Size
Approximately 28 inches × 27 inches.
You can easily make the blanket larger or smaller by adjusting the starting chain and repeating the pattern section.
Gauge
4 inches = 15 stitches and 18 rows in single crochet
Gauge is not essential if you are making the blanket for personal use, but checking it beforehand will help you achieve a finished size similar to the sample.
Crochet Abbreviations
- SC: Single Crochet
- TC: Treble Crochet
- SL ST: Slip Stitch
- CH: Chain
- YO: Yarn Over
- ST: Stitch
Stitch Instructions
Single Crochet (SC)
Insert the hook into the indicated stitch, yarn over, and pull up a loop. Yarn over again and pull through both loops on the hook.
Treble Crochet (TC)
Yarn over twice and insert the hook into the indicated stitch. Yarn over and pull up a loop. Yarn over and pull through two loops on the hook. Yarn over and pull through the next two loops. Yarn over once more and pull through the final two loops.
Slip Stitch (SL ST)
Insert the hook into the indicated stitch, yarn over, pull up a loop, and pull that loop directly through the loop already on the hook.
Crochet Treble Triangles Blanket Pattern
Chain 102.
The stitch repeat is worked over a multiple of 10 stitches, plus 2 stitches.
Row 1
Beginning in the second chain from the hook, work 1 SC in every chain across.
Chain 1 and turn.
Row 2
Work 1 SC in the first stitch.
Work 1 TC in the next stitch, followed by 1 SC in the next stitch.
Repeat from * across the row.
Chain 1 and turn.
Row 3
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 4
Work 1 SC in each of the first 2 stitches.
Work TC, SC, TC, SC, TC, SC, TC across the next 7 stitches. Then work 1 SC in each of the following 3 stitches.
Repeat from * across the row.
Finish with 1 SC in each of the final 2 stitches.
Chain 1 and turn.
Row 5
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 6
Work 1 SC in each of the first 3 stitches.
Work TC, SC, TC, SC, TC across the next 5 stitches. Then work 1 SC in each of the following 5 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 3 stitches.
Chain 1 and turn.
Row 7
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 8
Work 1 SC in each of the first 4 stitches.
Work TC, SC, TC across the next 3 stitches. Then work 1 SC in each of the following 7 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 4 stitches.
Chain 1 and turn.
Row 9
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 10
Work 1 SC in each of the first 5 stitches.
Work 1 TC in the next stitch, then work 1 SC in each of the following 9 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 5 stitches.
Chain 1 and turn.
Row 11
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 12
Work 1 SC in each of the first 6 stitches.
Work 1 TC in the next stitch.
Work 1 SC in the next stitch and 1 TC in the following stitch.
Repeat from * across the row.
Finish with 1 SC in each of the final 6 stitches.
Chain 1 and turn.
Row 13
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 14
Work 1 SC in each of the first 7 stitches.
Work TC, SC, TC, SC, TC, SC, TC across the next 7 stitches. Then work 1 SC in each of the next 3 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 7 stitches.
Chain 1 and turn.
Row 15
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 16
Work 1 SC in each of the first 8 stitches.
Work TC, SC, TC, SC, TC across the next 5 stitches. Then work 1 SC in each of the next 5 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 8 stitches.
Chain 1 and turn.
Row 17
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 18
Work 1 SC in each of the first 9 stitches.
Work TC, SC, TC across the next 3 stitches. Then work 1 SC in each of the following 7 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 9 stitches.
Chain 1 and turn.
Row 19
Work 1 SC in every stitch across.
Chain 1 and turn.
Row 20
Work 1 SC in each of the first 10 stitches.
Work 1 TC in the next stitch. Then work 1 SC in each of the following 9 stitches.
Repeat from * across.
Finish with 1 SC in each of the final 10 stitches.
Chain 1 and turn.
Row 21
Work 1 SC in every stitch across.
Chain 1 and turn.
Repeating the Main Pattern
Repeat Rows 2–21 four additional times.
After completing those repeats, work Rows 2–11 once more to finish the main body of the blanket.
Fasten off and weave in the yarn ends securely.
Adding the Border
The border gives the blanket a neat finished edge while the final textured edging adds an attractive decorative detail.
Begin by pulling up a loop in one corner of the blanket.
Chain 1, then work 1 round of SC around the entire blanket.
When working around the corners, place 3 SC in each corner to help the blanket lie flat.
When you return to the starting corner, join with a slip stitch into the starting stitch.
Continue working in the same direction and chain 5.
Starting in the second chain from the hook, work 1 SC into each of the next 4 chains, working back toward the edge of the blanket.
*Slip stitch into the next stitch along the blanket edge, then slip stitch into the following stitch. Turn the work and crochet into the back loops of each of the 4 SC stitches you just made.
Chain 1 and turn.
Work back down the 4 SC stitches, placing your stitches into the back loops only.*
Repeat from * across the entire edge.
Take care when working the fourth stitch because it can become tight and slightly difficult to see.
Working the Corners
When you reach a corner space, make only one slip stitch before turning and working the SC stitches back toward the top of the border.
Return to the edge and slip stitch once into the corner space.
Repeat this process two more times.
After completing the corner, continue by slip stitching into each of the next two stitches and work across the following side as normal.
If your corner does not appear rounded enough, you can add another slip stitch into the corner and make one additional trip up and down with the SC stitches.
On the other hand, if the corner begins to ripple, try using only two slip stitches in the corner instead of three.
Finishing the Border
Continue working around the blanket until you reach the starting corner again.
Complete the corner using the same technique as the previous corners.
Stop when you reach the top of the border and fasten off.
Use a tapestry needle to sew the border corners together neatly. Secure the yarn, weave in all remaining ends, and trim away any excess.
Your Crochet Treble Triangles Baby Blanket is now complete!
Tips for Making the Blanket
Choose a Soft Baby-Friendly Yarn
For a baby blanket, softness is especially important. Choose a yarn that feels comfortable against delicate skin and is easy to wash and care for.
Keep Your Treble Crochets Consistent
Because the triangle design depends on the placement and height of the treble crochet stitches, try to maintain a consistent tension throughout the project. Loose or unusually tight treble stitches can change the appearance of the triangles.
Count Your Stitches
The pattern uses a specific stitch repeat, so checking your stitch count at the end of each row can prevent mistakes from carrying into later rows.
Adjust the Blanket Size
The starting chain can be adjusted as long as you maintain the required stitch multiple. Since the repeat is based on a multiple of 10 plus 2, keep that structure in mind when changing the width.
You can also increase the length by repeating additional sections of the pattern.
Experiment With Color
Although a single soft shade creates a calm and classic baby blanket, this pattern would also look beautiful with two or more coordinating colors.
Try alternating colors between pattern sections, using a neutral background with colorful triangles, or choosing several pastel shades for a playful nursery blanket.
Final Thoughts
The Crochet Treble Triangles Baby Blanket combines simple crochet stitches with an interesting geometric design, making it a satisfying project for crocheters who want something a little more decorative than a basic single-crochet blanket.
The repeating treble crochet triangles create movement across the fabric without making the pattern overly complicated. Once the stitch sequence becomes familiar, the blanket is enjoyable to work on while relaxing at home.
Whether you are preparing a handmade baby shower gift, creating something special for a new arrival, or simply adding a cozy blanket to your own collection, this pattern is a beautiful project to try.
Grab your favorite soft yarn, pick up your crochet hook, and enjoy creating a handmade blanket filled with warmth and love.
