Martha's Craft Zone is a supply store.
It is a red metal building with glass windows on the front of the store. There is a sign that says "Martha's Craft Zone" above the double doors.
The interior has pink walls with green shelves that holds many types of products.
Role in the series
It's the place where SpongeBob and Patrick go to put up fliers that apologize to Gary, and ask Gary to come home. Patrick notices there is a sale on scented pine cones and goes inside to get some. He sees the Grandma and Gary are there and asks where the pine cones are. She says that she has bought the last pine cones, and Patrick leaves, unaware that he found Gary, and not telling SpongeBob.