Killer guide to making the ultimate DIY t-shirt | the pattern

The killer guide to creating a DIY T-shirt. A tutorial showing you how to make a DIY T-shirt pattern using your own measurements | Randomly Happy

I am so excited about this project. Super simple – you only need to take 3 measurements and a little bit of primary school maths and you’ve got yourself one great pattern piece. Aces, right?

Read on to find out more on how to make your own DIY t-shirt pattern.

Keen to do more? Find the rest of the tutorials in the series here:

The Pattern
Sewing Success
Finishing knits (like a pro)
Adding cuffs 

Killer guide to making the ultimate DIY t-shirt the pattern

You will need:

a roll of paper (wrapping paper, brown paper, newspaper will do)
pen
ruler
measuring tape
scissors

The killer guide to creating a DIY T-shirt. A tutorial showing you how to make a DIY T-shirt pattern using your own measurements | Randomly Happy

 

1. Take your 3 measurements: bust at its fullest point, shoulder to armpit (best to keep this measure on the long side), shoulder to waist (or where you’d like the t-shirt to finish).

2. We’re only going to create a pattern for 1/4 of the t-shirt. The longest edge of the pattern (the side without the sleeves) will be placed on a fold of fabric to create a whole side of a t-shirt. So now it’s time for a bit of primary school maths.

3. Divide your bust measurement by 2, then add 3 cm (1 inch) for seam allowance. Add 3 cm (1 inch) for seam allowance to your shoulder to waist and to your shoulder to armpit measures.

4. Now mark out your pattern using your measurements. Start by marking out your bust measurement and shoulder to waist length. Turn those into a rectangle. One half of the rectangle should be the edge of your paper. This will be your centre fold (more on what that is next week).

5. For the ‘sleeves’ mark out your shoulder to armpit length. This will be the opening for your sleeves. I went for shortish sleeves so measured out a rectangle that measured 11 inches tall by 4 inches wide (27 cm x 10.5 cm). This rectangle will start from your shoulder and end at your shoulder to armpit length.

6. To create curves I just freehanded it, but you could use a ruler to help you keep it uniform. Or a compass. I like Charlotte’s tip on making sure curves on the fold are at a right angle.

7. To make the neckline I free handed it again, but you could measure this out, or even use a favourite t-shirt neck as a template.

  1. Reply
    Laura

    I think this Is a great idea for a series of posts! I'd love to make my own T shirt from scratch 🙂

  2. Reply
    Annie

    As i have a mild obsession with tees this is such a good idea! would this tutorial be specifically for a v.fitted or a slouchy tee?

    1. Reply
      randomly_happy

      Great question Annie! This tutorial is going to make a slightly fitted t-shirt with slouchy sides and arms.

      If you wanted to make it tighter you could reduce the overall width. If you wanted to make it slouchier (is that a word? hope so, I do like it)you could just add a few cm/an inch to the pattern.

      Hope that answers your question!

      x Elena

    2. Reply
      Annie

      sweet – thanks! and slouchier should definitely be a word 🙂

  3. Reply
    Erica

    Oh, I'm so excited about this project!! I'm pinning this to my sewing board on Pinterest!

  4. Reply
    Formidably Fancy

    Great Tutorial! Will definitely be using this 🙂

  5. Reply
    maha devan

    ஒரு ஆண் சட்டை தைக்கும் முறையை படத்துடன் எனக்கு விளக்க முடயுமா?
    தயவு செய்து உதவுங்க

  6. Reply
    maha devan

    ஒரு ஆண் சட்டை தைக்கும் முறையை படத்துடன் எனக்கு விளக்க முடயுமா?
    தயவு செய்து உதவுங்க

  7. Reply
    Anonymous

    Do you have suggestions for finishing the neckline?

  8. Reply
    randomly_happy

    Great question! I've got two tutorials on how to finish necklines – an easier way (http://www.randomlyhappyblog.com/2013/05/how-to-sew-edges-t-shirt.html) and with a neckband (http://www.randomlyhappyblog.com/2014/03/finishing-knits-tutorial.html).

    Do let me know how you get on! x

  9. Reply
    louise35flower

    Great idea, would love to see a picture of the one you made to see the fit for real?

  10. Reply
    Lavender Life UK

    Thank you so much for this!! I feel like making all my shirts. But I don't know much about sewing. This seems very easy. Thank you.

  11. Reply
    The Ultimate DIY T-Shirt Pattern - Seams And Scissors

    […] until you could end up paying close to $10 for something that’s supposed to be a basic! This easy t-shirt pattern from Randomly Happy is the solution to all of those problems: with only three measurements, you can […]

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