Hiya, Lisa. Thanks for strolling over to planDisney with your question.
When my three kids were three years old and under, it would have been a dream to take a wagon to the
Disneyland Resort. Alas, stroller wagons are not permitted per the Disneyland
Stroller FAQ and
Disneyland Resort Rules. Occasionally, there are wagons in use by Guests at Disneyland and these have been tagged and approved by Cast Members for disability access or medical use. If you feel like your stroller use might fall into this category, I encourage you to contact
Disability Services by phone prior to your visit to discuss your situation and how you might get an exception for your stroller. They can give you more information, including information on Disability Access Services at the Disneyland Resort.
If your stroller wagon isn't for a medical need, it will need to adhere to the Disneyland Resort rules that say that strollers greater than 31" (79 cm) in width and 52" (132 cm) in length and "wagons, including stroller wagons" are not permitted. Lisa, I know this might not be the news you hoped to hear. However, I would hate for you to be turned away at Security for not having a stroller that meets the guidelines outlined on the website. I have, personally, seen this many times and it is a crummy way to start the day at The Happiest Place on Earth.
I hope this information helps, Lisa. Please visit us again, if you have any other questions!
Have a magical day,
Melissa