Development of inflatable structures for space applications has progressed rapidly in the past few years. Noticeable advances have been achieved in several key technology areas, such as system concepts, analysis tools, material selection and characterization, and inflation deployment control. However, many challenges remain to be overcome before the inflatable structures can be actually incorporated into space flight systems. One of these challenges is the development of suitable in-space rigidization methods, and many researchers in the space inflatables community are currently working toward this goal. The concept and development of a new type of space inflatable/self-rigidizable structures, called the spring-tape-reinforced aluminum laminate booms is described. Analysis and test results related to buckling capability, effects of stowage, modal characteristics, and dynamic responses of spring-tape-reinforced aluminum laminate booms are presented and discussed.