Making your own tallis katan

Although I have modified tallit katan garments a few times, I have never endeavored to make one from scratch. Still, I can offer some tips on how to go about it. Here is an exchange with a customer who wanted to make tzitzit for his 18-month son. Our smallest tzitzit are meant for a child of two or two and a half. I am posting the exchange because I believe it may be helpful for others who plan to make their own tallis katan for whatever reason.

Hi Ben,
Hope you are well. I was wondering if you sold tzitzit with a beged I could give my 18-month-old. He greatly admires his older brother’s and this is not something I want to discourage.
Thanks, C
harles

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Glad to hear from you, Charles. The smallest I know of is this. It comes in size 2 and size 3. The size 2 is really designed for two-and-a-half-year-olds, but he might be able to manage. You could always tuck extra length into his pants and if it drops off the sides a safety pin would probably do the trick.

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Thank you.  I’d feel weird giving that to anyone who isn’t three years-old.  I suppose we can turn a t-shirt into a beged on our own.

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That’s an idea. Two important points:
1) Measure from the bottom hem straight up to the middle of the shoulder, and make sure you make the sides more open than closed. You consider the sleeve opening as if it’s closed, i.e. as if there is no sleeve. This point is discussed in the Mishnah Berurah.
2) Make sure the tzitzit holes are as close as possible to 5 cm from each side. If it’s more than 6 cm or less than 4 cm you start to move into a halachic grey zone. It’s very difficult to make nice round reinforced holes, but it’s not essential. If you make elongated button holes, keep them as short as possible.