Triple stacker – A flexible parking solution for retrofitting. SingleUp3015 – Garage with Triple stacker made easy. SingleUp3015 is the simple and affordable way to turn one parking space into three – simply by stacking them on top of each other. The premium parking solution is installed without a pit. This means it can be adapted to the available space at any time. This means that additional parking spaces can be created in existing buildings. As is usual with dependent parking, the lower and middle parking spaces must be free to lower the platform for the third car. The system is therefore ideal for using the upper platform for long-term parking, such as classic cars, and the lower parking space for short-term parking.