Wanted SD Size Oversized Sweater Knitting Pattern

I would knit a raglan sweater! It is easy to adapt and size up and down to fit your doll in the way you'd like. It's also easy to try on the doll while you're working on it so you can adjust things as you go, or see if you need to go wider or longer. This is a human pattern, but once you get the logic of it, it's fairly simple to adapt for a doll

 

Look for a knitting pattern for a boy doll of the same scale and knit that - it will fit looser on a girl doll ion that scale

If you're worried it will still be too close fitting, once you've knitted the rib for the cuff/collar/hem take the needle size up a size or two for the the body and sleeve part.

Teddy

 

If you know how to do it with sewing, you're already halfway The way I scale raglans to fit my dolls works like this (using the method of knitting the sweater like in the pattern I linked above):

1. You will need a neck measurement and chest measurement - if you already have a garment that fits like you want, you can take the measurements from there so the sweater fits the same way. You can also measure a sewing pattern, or draft one using your dolls' measurements and adding enough width/slack for an oversized look. Measuring an oversized SD10 size sweater I got around 12cm for the neck and 30 cm for the chest.

2. Knit a swatch with the yarn and needles you plan to use - I usually knit doll sweaters on double pointed needles, but circulars also work for this. I knit a patch that is roughly 12 stitches and 10 rows.

3. Take a ruler and measure how wide 10 stitches are on your swatch and note it down. (The stitches on the edges tend to become a bit bigger, so I cast 12 stitches for my swatches to get a more accurate measurement from the 10 in the middle).

4. Maths time :
10 stitches = Y cm (swatch measurement)
X stitches = neck measurement cm

X= (neck x 10 stitches):Y

So let's say if the 10 stitches on the swatch were 4cm, and your neck measurement will be 12cm, you need to cast (12x10):4 stitches aka 30 stitches.

5. Do the same math with the chest measurement.

Let's say if the chest circumference of the end garment would be 30cm, so you'll need to knit until you have (30x10):4=75 stitches altogether on the front and back panels (excluding the sleeve parts).

6. Cast your neck stitches and divide them into 2 chest panels and 2 sleeves. Chest panels should be wider than the sleeves, so when casting 30 stitches, I would divide them into 10+5+10+5 (either on DPNs or divided using knit markers)

7. Knit following the raglan pattern: knit a row, increase before and after every marker on the next row, knit a row, increase, repeat until the stitches on the wider panels equal what you needed for the chest circumference (so 75:2... let's say 38 stitches for both panels). If you feel like it's still not wide/oversized enough, just keep repeating until you're happy with the with/length of the upper torso part.

8. Cast the sleeve stitches off onto separate pieces of yarn and continue on the torso part circularly until you're at your desired length and cast it all off.

9. Pick up the sleeve stitches + pick up 2 extra stitches from the armpit, knit circularly until you're done with the sleeves, cast off.

10. Weave in the ends, block the sweater!​

If you'd prefer knitting a sweater from separate pieces and sewing them all together later, you can similarly use the measurements from your doll/a pattern/a garment, make a swatch with the yarn you plan on using, and calculate what your needed stitches are like above. I sometimes just check my knitting against an already existing sweater and make the decreases and increases following that (not a very scientific method, but it sort of works haha), but you can also pick a human sweater pattern and reference the steps.

I hope this wasn't too confusing and explains it a little bit... If you have measurements, I can also help you draft a more proper knitting pattern if that is more easy to follow.