Hi Darla!
Thanks for stopping by the Disney Parks Moms Panel! I'm happy to answer your question about
locker rental sizes at the Happiest Place on Earth!
As you may know, there are currently four locker sizes available for day-of rentals. There is not a way to reserve one in advance. Small and medium-sized lockers are available inside the Disneyland Resort (right behind the Starbucks on Main Street, U.S.A). The large and jumbo sized lockers are only available outside of the Disneyland Park, near the picnic area.
Here are the locker dimensions and prices for each category:
Small Lockers - 9.5" wide, 11" high, 18" deep – $7
Medium Lockers - 12/5 wide, 17" high, 18" deep – $10
Large Lockers - 15" wide, 16.6" deep, 22.6" deep – $11
Extra Large - 15" wide, 23" high, 22.6" deep – $12
Jumbo Lockers - 18" wide, 25" high, 37" deep -$15
I hope this helps! Keep in mind your locker rental will be available throughout your visit but you must retrieve your belongings before leaving the Parks in order to avoid a visit to Lost and Found!
Happy Traveling,
Tracy