T-Shirt sized estimating cards

Agile Estimating and Planning

I‘ve been a big fan of abstract estimating cards for a long time, and I’ve especially enjoyed using T-shirt sizes. T-shirt sizes are great because the enable communication with Product Owners; they immediately understand that a Large body of work is going be to bigger than a Medium body of work yet smaller than an XLarge body of work. And, most people are also culturally aware of T-shirt sizes so it feels very natural to use them.

After some discussion with my brother (who did all the art work), I’ve finally produced a packet of estimating cards that I’m really happy with. There are only 6 cards per suite including: Extra Small (XS), Small (S), Medium (M), Large (L), Extra Large (XL) and finally a question mark (?). Because there are just six cards per suite, that allows a total of nine suites per pack of fifty-four cards.

Here’s what a complete suite looks likes …

I have a large box filled with estimating poker packs, and for a limited time I thought I’d offer them for free. So, if you’d like a pack of T-shirt sized estimating cards please send me an email at kane@scrumology.com with an office address that you’d like me to send them to. As soon as I have time to put them in the mail, I’ll let you know. I had a large box filled with estimating poker packs … but now they’re all gone. I’ll re-open the offer once I get some more cards made up.

7 Responses to T-Shirt sized estimating cards

  1. Agilarium November 2, 2011 at 3:20 pm #

    Hello Kane,

    Thank you for this post! I have translated it into french :
    https://agilarium.wikispaces.com/Cartes+d%27estimation+en+utilisant+des+tailles+de+T-shirt

    Regards,
    Fabrice

    Reply
  2. Jon Coleman November 28, 2011 at 3:53 pm #

    Hey Kane! Thanks for this. I took advantage of your generous offer, and have received these sweet cards in the mail. I’ll be using them this afternoon :)

    Kind Regards
    Jon Coleman

    Reply
  3. Scrumalot (@scrumalot) November 30, 2011 at 10:56 am #

    Put in my official request for @scrumology’s T-Shirt Size Estimation Cards. I hope I haven’t missed the deadline! http://t.co/59s5Yeb5

    Reply
  4. Julen November 30, 2011 at 3:02 pm #

    I can’t wait to use the in my next meeting!

    Reply
  5. Erwin Verweij December 23, 2011 at 5:31 am #

    Hi Kane,

    I’m always looking for new ways to try Agile thinking. T-shirts might help with understanding Scrum metrics. I would love to try this and send a mail to you. Not sure of i’m still within the deadline.

    Reply
  6. Lewa May 8, 2012 at 6:04 am #

    Hi Kane,

    Can you please tell me where you got your cards printed? I was hoping to print some custom cards myself.

    Thanks.

    Reply

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