DIY: How to fit a Stokke Newborn Set onto an ‘old’ model Tripp Trapp chair (pre 2003)

21 August 2022

The Tripp Trapp chair by Stokke has been a popular pick for parents for decades. The Newborn Set can be used from day one so the baby can joint the rest of the family at the dinner table. Unfortunately, these sets can only be placed on chairs manufactured after 2003. You can see if it will fit by checking the serial number under the chair: if it starts with a three it will fit. But what to do if you have an older chair?

We tried to find a solution by borrowing a newborn set and putting it on a Tripp Trapp chair which was deemed ‘ too old’ (see ‘before’ picture). As you can see it will not fit because the dimensions of the Tripp Trapp chair have changed over the years. However, this is easily fixed by making to indentations in the wood (see ‘after’ picture).

Why buy another chair if the old one will last another lifetime?

This blog was originally published in Dutch. You can find the original here.

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    1. According to any set of instructions for any product ever made you should not alter it for safety reasons. Therefor, you cannot make any safety claims as the product is now different. I just wrote down what we did to our old Stokke chair and how we used it for our youngest daughter.

  1. Hello,

    How has this modification treated you guys for the past month? Any issues with safety at all? I was thinking of doing the same to our Stokke chair instead of purchasing a new one.

    It looks like a very small modification to the chair that it shouldn’t affect the safety at all. But I might be wrong.

    Thank you

    1. Hi there,
      We’ve used the modification until our daughter was too big for the newborn set. She is now a toddler and we still use the chair without any issues.

  2. Hi,
    Good tip!
    Have you tried with baby set? I have the old version and I read that new Baby sets with trays dont fit the old versions… is it true?
    Thanks in advance!

    1. I haven’t! The baby set is attached in a different way so I’m afraid you can’t just copy paste this hack with that set.

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