The Assembly Line

The Assembly Line Oversized Shirt

Regular price £21.00 GBP
Sale price £21.00 GBP Regular price £21.00
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Buy the Oversized Shirt sewing pattern from The Assembly Line. The Oversized Shirt is based on a classic style but with an oversized fit. It features relaxed shoulders, a traditional shirt collar or standing straight collar, rear box pleat, and side seam pockets.

This sewing pattern is available to buy in the following format:

– PAPER (next working day dispatch on orders and FREE UK delivery over £50)

Suggested fabrics: Light to medium weight fabrics, such as cotton, silk, lawn, linen, crepe de chine or wool crepe.

Fabric requirements: 

110-120 cm wide fabric: XS 2.4 m / S 2.5 m / M 2.6 m / L 2.6 m / XL 3.0 m / 2XL 3.0 m / 3XL 3.0 m.

140-150 cm wide fabric: XS 1.8 m / S 1.9 m / M 2.0 m / L 2.1 m / XL 2.2 m / 2XL 2.3 m / 3XL 2.3 m.

Sizing: XS – L or XL – 3XL (approx. UK 8 – 18 or UK 18/20 – 28/30, based on our standardised size chart). Please also check the designer’s size chart and finished garment measurements.

Notions: Fusible interfacing; eleven shirt buttons, approx. 1 cm diameter.

If you’re looking for more maker inspiration, check out the latest sewing pattern reviews from the sewing community. We also have a sewing blog to keep you up to date with all the news from the world of sewing.


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Customer Reviews

Based on 4 reviews
Oversized Shirt Dress

This is a well constructed pattern and a I love the fact is has side seam pockets. The instructions are well written and easy to follow. I would of liked the pattern to include French or Flat Felled seams so I knocked a star off for that but everything else about the construction is great. I used a lightweight linen and extended it by 20cm so that I can wear it as a dress in the summer. It's definitely a pattern I will re-visit and plan to make a regular length one next time. I may end up shortening this to a shirt but that's nothing to do with the pattern I'm just not sure it suits me in this fabric perhaps I need some sunshine - February in the UK isn't the best time for wearing summer clothing!

The Assembly Line Oversized Shirt

I discovered The Assembly Line Oversized Shirt through a few of my favourite sewists on Instagram. I love wearing shirts, and shirt dresses that don't feel cutesy. This design is the perfect blend of relaxed and professional. My ideal garment!

I lengthened the pattern 15cm to turn it into a dress. More on my blog here

The Oversized Shirt - WITH POCKETS!!

This is a great basic shirt that will get a lot of wear for a long time. It is a project that requires you to take your time and to not rush through it, a perfect mindful sewing project.  I found that I got lost in it.  I was so busy concentrating on construction details that I was able to shut out all the distractions and stresses that are happening in the world at the moment.  It is time consuming but also hugely satisfying and you get a wonderful and timeless garment when you finish.

I go in to much more detail about the making of this shirt on our blog;


Who doesn't want a shirt with pockets!

This is my second TAL Oversized shirt, the first one I made in a size L in line with my measurements but I felt it was just a bit too oversized.  Never mind, my daughter stole it so it's gone to a good home!  This time I made an M and I'm very happy with the fit, still giving an oversized look but not tent-like.

I made this with inexpensive stretch cotton I bought from Minerva which was a joy to sew, the instructions are good, although I chose to add my yoke using the burrito method rather than the method given.  I feel the burrito method is easier and neater, there are lots of videos on YouTube showing this if you're interested.  Other than that I made no changes at all, you don't topstitch the button band, it stays in place with stitching at the top & bottom and also with the buttons or buttonholes.  It gives a simple clean look, but there's no reason you couldn't add topstitching here and at the yoke to give a more utility vibe.  If you fancy seeing it in motion, I'm wearing it in this video here