Making A Crochet Granny Square Sweater!

I Made a Crochet Granny Square Sweater & So Can You!

I’m going to write a little intro about my new crochet granny square sweater, but honestly, I’m too excited about it to make much sense! However, I will do my best to break everything down and provide as much information as possible, so that you can make your own colourful crochet sweater too.

Firstly, I must remember to give credit for the source of crafty inspiration. This crochet jumper, put together, block by block with happy little granny squares, has been inspired by the Ariana Cardigan by Amy Christoffers. It’s a very popular pattern that combines knit & crochet stitches. Funnily enough, I was so intrigued by hybrid patterns for knitting and crochet that I’ve written a blog post about my favourite knitchet/croknit patterns.

Other makers have made jumper versions of the cardi, and they all looked so lovely (on the Rav project page), I was super enthused to make one of my own, in my own colours and actually, with my own granny square pattern.

So, over the next few paragraphs, check out all the details you need to make your own jumper. I’ve pulled together all the info about yarn, charts and tutorials. There’s also a video of the making of this colourful crochet granny square sweater over on YouTube.

This is a Crochet Sweater Recipe

If you want to make the Ariana cardigan, luckily for you, a pattern already exists and it’s free on Ravelry. What you’ll read here is more of a recipe for a jumper inspired by the original. Probably the only thing they have in common is that the granny squares are on the diagonal and the ribbing is knitted.

Whilst I downloaded the original Ariana cardigan and gave it a quick once over, I didn’t read or follow it for this sweater. Therefore, I don’t feel like it’s wrong to share what I did in recipe format.

The other reason for it being a recipe rather than a pattern for a crochet granny square sweater is that garments using granny squares are a nightmare to grade across different sizes. Blocks of squares aren’t fun to format into wearables, and like me, perhaps you can get a pretty good idea of how to make a granny jumper without a pattern.

Below, I share the charts I drew up for two sizes, both of which can be tweaked to make bespoke, unique crochet garments. I have also shared a few tips on ways to make adjustments to your crochet granny square sweater.

TLDR – The Sweater Basics

Don’t forget to watch the crochet granny sweater YouTube video.

Step 1: Scroll down to charts and decide on large (64cm / 24inches wide) or small (48 cm / 19inches wide). Or make your own based on your measurements and the size of granny square you plan to use.

Step 2: For the large, dig out 700 grams /2000m /2120yds of DK stash in as many colours as you like, I recommend a minimum or 7 or so. The more colours you use, the more higgeldy piggeldy.

Step 3: With a 4mm hook (US G/6), crochet 54 squares and 15 triangles, working the final round with Join As You Go (JAYG) to join the sweater. Be careful at the sides and sleeves – use stitch markers to hold in place.

Step 4: With 4mm needles or hook, knit or crochet the ribbing.

Step 5: Sew in thousands of ends. I saved this until last in case I had to rip back any squares – eg to shorten verrry long sleeves. Actually, you can sew in the first 4 rounds of every single square and triangle before this stage….

The Essential Crochet Resources

• The Ariana Cardigan on Ravelry. It’s the source of inspiration.
• The “Making of” video for a granny square sweater.
• Granny square written pattern.
• Granny Square video tutorial (including JAYG demo).
• Granny Triangle written pattern.
• Granny Triangle video tutorial.
• Other fabulous crochet tips and tricks that you can apply.
• Plan the colour layout of granny squares, a video tutorial.
• Picking up stitches from granny squares.
• Knitted V-neck tutorial. So much easier than I thought it’d be.
• Magic Loop Tutorial. I loved this!
• Starting magic loop in the round.
• Crochet ribbing alternatives (should you not want to knit).
• Blocking Crochet blog post. Or feel free to watch the video version about how to block crochet here.
• Several cups of tea.

What You Need to Make a Crochet Granny Square Sweater

I used double knit (DK) yarn for this patchwork crochet sweater, a 4mm hook and 4mm knitting needles. Tension is not a major issue, as this is a design that’s ideal for making it up as you go along.

Just because I used DK doesn’t mean that you have to. Technically, you can make this sweater in any yarn weight. It’s worth working up a few swatch squares in your preferred yarns to see if they work. You can also get a rough idea of how much yarn you’ll need by making a swatch or two. Don’t forget to add in enough for ribbing, too.

If you veer off from DK, you will likely need to think about the number of rounds per granny square. I’ll chat about my measurements in a sec, and that should inform you on sizing. If you’re thinking of working granny squares that are drastically different in size or yarn weight, you’ll end up with a crochet granny square sweater with different measurements. However, if you’re happy to draft your own charts, I fully support your experimentation by cheering from the side.

The Best Yarn for a Crochet Sweater

I think DK is perfect for a crochet sweater. If you go to heavier yarn weights, garments can start looking a bit clunky and heavy. Everyone is different, and we all have our own personal preferences, so at the end of the day, you can use your favourite weight of yarn. However, as garments go, DK is an awesome yarn weight. I love a lighter 4ply too, but for a crochet granny square sweater, 4ply yarn is more work as the squares would need to have more rounds to get them to the same size, and I kinda enjoyed this as the quick project that it was. Double-knit yarn is a good balance.

If you’re curious about different yarn weights and using something different, check out my blog post on Yarn Substitution.

The majority of my yarn stash here is wool I’d had for a number of years, which deserved to be part of a special crochet project. About five years ago, I treated myself to colourful skeins of merino from Folkestone Harbour Yarns. Then, to complement this collection, I matched it with rich brown shades from Loom Wool. It’s all gorgeous! I love that the browns are all slightly different; it adds a unique quality to my crochet sweater.

How Much Yarn Will You Need?

Make a granny square from a pattern that you’ll be using in your jumper (the one below, or other fave). If you’re being super diligent, wash and block it too. I’m not going to make you do this, but learning how to block crochet is useful for your garment-making endeavours. It determines final measurements (as well as other things), so it will help calculate sweater stats.

Weigh your square, and it will give you a fairly good idea of how much yarn you’ll need for the whole project. Multiply the weight of that one square by the final number of squares (don’t forget the triangles too). This is the total amount of yarn you’ll need.

Not gonna pretend I actually did this though. I just grabbed the lovely yarn stash I wanted to use up (and I am always going to have enough stash!). I think I used 10 colours plus the border colour. I made sure to have 4x 100 gram skeins of my joining colour, but there is plenty left.

The total weight of my finished jumper is just under 700 grams. I cannot recall the specific number, but I did weigh it especially for the YouTube video on making my crochet granny square jumper, so feel free to watch. I begrudgingly calculated yardage and meterage, too! Oof, from memory? Around 2000 metres/ 2120 yards.

The square that you make will also be useful to measure, so you can calculate the size of your sweater too (more on this below).

Cute Granny Square Pattern

There is only a slight change to the traditional granny square with this pattern, but it’s one I think makes a decent impact. The first round is eight dainty little petals rather than the standard four clusters. The following rounds are then just super simple granny clusters.

Find the granny square pattern here. The video tutorial that’s linked in that pattern is also useful to demonstrate the Join As You Go (JAYG) technique.

FYI, I have yet to determine how five rounds of this pattern compare to five rounds of a traditional granny square pattern. Just in case you assumed it was the same measurement. It might not be. *Shrugs*. Whatever the weather, these squares measure 16cm from corner point to corner point. As we’re working on the diagonal, this is the measurement you need.

The Granny Triangle Pattern

Because this crochet granny square sweater is worked with the squares on the diagonal, triangles are also required to straighten the bottom edges of the main body and sleeves. Find the free granny triangle pattern here.

For both the granny square and granny triangles, I worked four rounds of each, knowing I was going to work a 5th round as I crocheted JAYG. Oh, and it’s best to sew in your ends after Round 4 so you’re not left with a hideous job of sewing in yarn tails at the end. Like I was….

Granny Sweater Measurements

Having decided on a granny square pattern with five rounds in DK yarn, there were two choices: go for fitted or oversized.

I was slightly concerned that the smaller option would be too tight across my chest. Knowing the measurements of the squares, I think the smaller size would just about fit my body (99cm circ), but with very little “positive ease” – i.e. extra room. I dithered and doubted enough to opt for the oversized version. Charts for the oversized version I made and the smaller, fitted size that I’d like to make are both below.

The following measurements are taken after I washed and blocked my jumper.

Sweater Measurement Details

My oversized jumper is 4 diagonal squares wide. Remember that 16 = one square’s point to point measurement in cm. 4 x 16 is 64cm (approx 25 inches). Therefore, this is the width of my crochet granny square sweater.

The sweater length, including the waistband, should come in at 53/54cm after blocking. What with the weight of the yarn and the wear it’s had, the final length of my sweater is more like 57cm. I’m happy with that!

The final sleeve length (with cuff) is 44cm (approx 17.5 inches). These are shorter than I would ordinarily make. The drop shoulder construction, paired with the oversized width, means the sleeves start further down my arm. Originally, I hadn’t factored this into my plans as well as I’d thought. So the sleeves I initially made were clownishly long. Bum. Long story short, I ripped out a few squares at the sleeves. I had a terrible time doing this, but I made the effort to change them because I wanted to be satisfied (and happy) with the result. Sometimes it’s worth pushing through the difficult times!

The upper arm depth is 16cm; the measurement of one square on the diagonal. There’s a bit of stretch here, too. That’s OK.

It’s useful to note that should you wish to adjust the sleeve length or main body length by only a fraction, you can add or subtract ribbing rows. I think I went for 9 rounds of ribbing, but redid cuffs and only did 8 rounds the second time around.

Granny Sweater Chart – Square Layout

If I have done my counting correctly, for the size I made, I needed 54 granny squares and 15 triangles. On the chart above, I have shaded out sections along the top of the sleeves and sides for the “front”. These squares are already accounted for on the back section (they’re just folded round – watch the video at timestamp 34:00 to see what I mean).

The chart above was useful to work out the sweater schematic, but what I found even more useful was to lay it out how I actually intended to join the granny squares.

Take a look at the next image. When joining, I left the squares A to H to the end. These needed to be joined in two different places to bring everything together, going from a flat piece of crochet fabric into a 3-dimensional structure. For example, square B is joined (JAYG method) to the sleeve at both the green and blue sections.

Using plenty of stitch markers at this point is enormously helpful as well. I think I would have struggled without temporarily pre-joining squares before crocheting them together. Using stitch markers to pin everything together first allows you to see that you’re on the right track, showing that you haven’t accidentally joined a side of B to the main body instead of the sleeve. You can see how easy it might be to accidentally incorporate the side of E (pink line) into the B join, as it sits right next door!

I also chat about this in the granny sweater video from 31:04, Sometimes it is easier to see a visual of it.

The Smaller Granny Square Sweater Size

Yes, I do want to make a second crochet granny square sweater, and I would like a fitted version. The initial chart for this is drawn up below. I have reduced it by one block in the body and lengthened the sleeves. I have a reasonably good feeling that this will work. If I have to reduce the sleeve length back down, I will. I won’t mind too much! If you have short arms, stick to the shorter sleeve.

However, look at the neck and you’ll see it’s different. It’s deeper at the front, and I left a triangular space at the back of the neck. Ultimately, if I put that triangle back in, the neck space would be the same as the large size, but with more of the action at the front. This means a deeper V-neck and no shaping at the back neck. There’s room for playing around with this, I think.

The neck is surprisingly gapey before adding the ribbing; it would be suitable for several sizes. Play around with the number of ribbing rounds to make adjustments.

Potentially, a triangle could be added at the front to square off the neck into a kind of round neck. I mention this in the video, but watching it back, it just looks like I’m wearing the sweater back to front!

And where it says 49cm, ugh, it’s supposed to be 48. Oops.

Knitted Ribbing on a Crochet Sweater!!

I know!!? It’s crazy, I’m such a huge crochet fan, but I knew I was going to grab this opportunity to improve my knitting skills. From just the ribbing sections, I have learned loads! Not only did I remind myself how to pick up stitches, I also worked Magic Loop for the first time, and tried SSK for the V neck shaping.

For the 2×2 knitted ribbing, I use continental style knitting as it’s easier to switch between knit and purl stitches. It’s got to the point where I have forgotten how to purl in throwing style. Links for the tutorials I used are above, in the resources section.

Don’t get me wrong, I have a long way to go in my knitting journey. If you look closely, you’ll no doubt see that I’ve done a terrible job; regardless, I am thrilled!

Alternatively, there are absolutely loads of crochet ribbing stitches you can use too. You know I love crochet ribbing!!

Adjustments & Issues re “Winging It”

The sleeves! They were way too long for me in the beginning, and I had to make adjustments. If you’re unsure, think about the body width of the jumper. If you are aiming for oversized, take this into account as it will have an effect on sleeve length. Think about the total wrist-to-wrist measurement (up one arm, across the back, down the other arm). That’s the measurement you want to aim for. Not always easy to do.

If your upper arm circumference is larger than 30-32cm, you may wish to consider adding another row of squares at the sleeve to make them wider. This comes with added complications as the construction at the underarm will change. It’s not something I’ve looked at before. In my head, I’m thinking of an additional square to create shaping under the armpit?? Sorry, I don’t have a clear guide for that.

If this is too much of a headache or, indeed, creates deeper sleeves than you would like, this is the moment where you’ll want to question the measurement of a single square. The alternative is to add another round to all squares and triangles. This will deepen the arm depth but also increase the width and length of your final crochet granny square sweater. What would you go for?

Final Thoughts on Making a Crochet Granny Square Sweater

Oh, I have so many photos I could share, but we’d be here forever. It’s all the unpretty step-by-step progress shots that I’m not sure would be that useful. Things like before and after sleeve changes, such as the ones below. They’re reminders of learning and progress, which is good, I guess?

Oh go on then, let’s have a gallery of my new granny jumper!

What do you think? Has it raised more questions, or do you think this recipe will help you make your own crochet granny square sweater?

If you do have questions, please let me know in the comments section and I’l try to edit the post as and when I can.

I always start off thinking crocheting a garment in the “winging it” style will be fun and simple. Making the thing often is! In real terms, however, the writing up of the “recipe?” Goodness me, there are quite a few elements required, and there’ll always be something I’ve missed.

Cheers! x