How to crochet a t-shirt yarn bag with a round base
Crocheting a t-shirt yarn bag with a round base is one of the most popular and rewarding options, especially for baskets, sack-style bags, and soft designs with a natural drape. The key is understanding where and how to make the increases so that the base remains flat and the bag rises straight without ripples.
In this article I explain step by step how to crochet a t-shirt yarn bag with a round base , from the beginning to the sides, with practical tips to help you achieve a beautiful and balanced shape.
When to choose a round base for a t-shirt yarn bag
The round base is ideal when you're looking for a handbag:
- With a soft, organic shape
- Sack, bucket or basket type
- Without sharp corners
- With a natural drape and handcrafted look
It works especially well in summer bags, large bags, and projects where the t-shirt yarn has some weight and prominence.
If you want to compare this system with other constructions, I recommend reading the complete guide on how to knit a t-shirt yarn bag .
Recommended materials
- Medium or thick t-shirt yarn
- Crochet hook appropriate for the t-shirt yarn (usually 8–10 mm)
- Lap counter
- Scissors
On round bases, it is especially important that the yarn has a regular thickness, so that the increases are balanced.
How to start a round base with t-shirt yarn
The round base is worked in a spiral , without closing turns, always marking the beginning.
Lap 1
Make a magic ring or chain 4–5 stitches and join them into a circle. Work 6 single crochet stitches into the ring.
Lap 2
Increase at all points: 2 low points at each point . You will have 12 points.
Lap 3
Alternate: 1 single crochet + 1 increase. Total: 18 stitches.
Next laps
It continues to increase steadily:
- V4: 2 points + increase
- V5: 3 points + increase
- V6: 4 points + increase
The number of turns will depend on the final diameter you want for your bag.
How to know if the increases are correct
A well-woven round base should:
- To lie flat when laid flat
- Do not waver (too many increases)
- Do not curve into a bowl shape (increases are missing)
If you notice the base isn't flat, don't worry: undo one round and adjust the increase rate. T-shirt yarn is forgiving, but it does require careful attention to the fabric.
How to climb the walls of your bag
Once the desired diameter is reached, the key moment arrives: stop increasing .
Knit one full round, working in the back loop only (BLO), without increases. This creates the angle between the base and the sides.
From there, continue crocheting single crochet stitches in a spiral until you reach the desired height.
Height and shape of the bag
With a round base you can achieve different styles depending on the height:
- Few turns: basket-style bag
- Medium height: bucket bag
- More height: bucket or planter-type bag
If you want to add more structure, you can combine the t-shirt yarn with stiffer cord in the last few rounds.
Handles and finishes
Handles can be added:
- Woven directly
- Sewn later
- With handles made of wood, metal or leather
For bags with a round base, shoulder straps or short handles work especially well.
Common mistakes when knitting a round base
- Do not use lap marker
- Increase "by eye" without regularity
- Starting to climb walls too soon
- Do not adjust tension when changing from base to wall mount
Conclusion
Crocheting a t-shirt yarn bag with a round base is a simple yet versatile technique. By mastering the increases and the transition to the sides, you can create everything from decorative baskets to everyday bags.
If you want to continue learning, don't miss the complete guide on how to knit t-shirt yarn bags , where you will find all the construction methods explained step by step.
