We propose an AR store authoring system that enables the users to customize a physical space to promote spatial experience in mobile AR shopping. The current state of AR shopping research attempts to enhance the shopping experience by presenting virtual items onto the user's space. However, under the notion that the stores and products are inseparable in creating a holistic shopping experience, we set to make a shopping experience that encompasses both elements. Instead of simply augmenting a whole store, this study introduces a space adaptive AR store that divides a virtual store into multiple sections and places them onto physical space according to the labeled surfaces. This prototype mobile application intends to deliver a complete spatial shopping experience by allowing the users to customize the stores in their space and ultimately attach the store experience to the AR shopping system. This study aims to introduce new scalability of the AR technology application in remote shopping.