Two colours and a grid of granny squares is all it takes to get a tank top that looks deliberate and finished, not just thrown together. The teal-on-aqua combination here makes the dc clusters pop against each other, and the boxy cut means the squares sit flat without any shaping gymnastics. For another granny square top with a different silhouette, the granny square crop top keeps the same construction but with a shorter, more cropped fit.
Crochet Boxy Tank Top
Make your squares first, lay them out until you’re happy with the arrangement, then join as you go — the top comes together in an afternoon once the squares are done. The ribbed hem band anchors the bottom edge and keeps everything from flaring. If you want to stay in the tank top family with a completely different stitch approach, the boho halter top is a good contrast make.
Materials & Tools
- Medium weight acrylic yarn in two colors
- 3.5 mm crochet hook
- Darning needle
- Stitch markers
- Scissors
- Measuring tape
Quick Stitch Guide
Difficulty
Intermediate
Time Required
A multi-session project that becomes wonderfully repetitive as the granny squares begin to grow and come together.
Why I Love This One
Turning simple granny squares into a modern, wearable tank top is incredibly satisfying, and the second color beautifully highlights each motif while giving the finished garment a fresh, polished look.
Pattern
Crochet the Granny Squares
Foundation Round
- Create a magic ring by chaining 4 and slip stitching into the first chain.
- Chain 2 to act as the first double crochet.
- Work 2 double crochets into the ring.
- Chain 2 and work 3 double crochets, repeating this sequence three times.
- Chain 2 and slip stitch to the top of the beginning chain to close the round.
Round 2
- Chain 2 and turn.
- In each corner chain space, work 3 double crochets, chain 2, and 3 double crochets.
- Chain 1 between each corner shell.
- Slip stitch to close the round.
- If you’re still learning how to read crochet patterns, no stress! Follow the video tutorial below and use the written pattern below as you get more comfortable!
Round 3
- Chain 2 and turn.
- Work 3 double crochets in each side space.
- Work 3 double crochets, chain 2, and 3 double crochets in each corner space.
- Chain 1 between groups.
- Fasten off after completing the round.
- Make 16 large squares with three rows each for the body.
- Make 10 small squares with one row each for the straps.
Join the Main Body
- Add a fourth round to each large square using the second color.
- Work shells in the corner spaces and 3 double crochets in each side gap.
- Join the squares together during the fourth round by slip stitching into matching spaces.
- Join the squares side by side to form a row that fits comfortably around your bust.
- Join the last square to the first square to form a circle.
- Attach a second row of squares beneath the first row by joining along the top edges and sides.
Bottom Edging
- Attach yarn to the bottom edge of the top.
- Work 3 double crochets into every gap around the entire bottom.
- Work alternating front post double crochet and back post double crochet rows.
- Repeat for 3 to 4 rows to create a ribbed hem.
Top Edging and Straps
- Work one round of single crochet evenly around the entire top opening.
- Join five small squares together for each strap.
- Add a single crochet border around each strap.
- Sew the straps onto the front and back of the top evenly, positioning them a few gaps away from the underarm area.
Finishing
- Weave in all loose ends securely.
- Tie nearby yarn tails together on the inside before trimming for a clean finish.
Helpful Tips
- Block each granny square before joining to help the seams line up neatly.
- Keep your joining tension even so the finished top lays flat without puckering.
- Arrange all the squares before joining to check the color placement.
- Secure and weave in yarn tails as you finish sections to avoid a large amount of finishing work later.
Yarn Substitution
This design works well with other medium weight yarns that provide good stitch definition. Cotton or cotton-blend yarns will create a cooler fabric for summer wear, while acrylic offers durability and easy care.
Customization Ideas
- Use multiple colors for a vibrant patchwork look.
- Create a longer version by adding another row of granny squares.
- Make the straps wider by joining additional small squares.
- Finish with a decorative picot edging around the neckline.
- Add fringe to the hem for a playful boho style.
Frequently Asked Questions
1. Can I use only one color instead of two?
Yes. A single-color version creates a classic, clean appearance while still highlighting the granny square texture.
2. Is this tank top easy to customize?
Yes. You can easily adjust the overall look by changing colors, adding extra squares, or modifying the strap style.
3. Do I need to block the granny squares?
Blocking is recommended because it helps every square become the same shape and makes joining much easier.
4. Can I wear this as a layering piece?
Absolutely. It looks great over a camisole, tank top, swimsuit, or lightweight dress during warmer months.
