Travel iron tote
 

I recently purchased a travel iron tote pattern and after making it realize that I should have purchased the travel iron junior tote pattern. The quilt shop I purchased the pattern from assured me that it would fit my Rowenta travel iron but it is too small. I found the dimensions for cutting the junior size tote and it says to cut all the pieces 17" x 22". It does not tell me the dimensions for the bottom part where the iron sits. Can anyone help me with this?