The purpose of this paper is to standardize and simplify the design work on a few specific types of storage brackets for balconies. The company Balco AB had the wish to simplify the design work in the preparation of attachments to their balcony structures. This would be done by a calculation matrix that could be produced which then in turn could be used for each new project by the company. The design work behind the development of these fittings at each new project is costly both in terms of time devoted by each calculation but also the cost of the time. The purpose of this report is that in a systematic manner, a calculation matrix can be created that then the company instead may follow from each new project. In carrying out the project used HILTI calculation program, which was provided by the company HILTI. Balco AB operates in the current situation with this software when designing work related attachments are made. Determining of the calculation matrix was achieved by 896 different calculations were made on a total of 4 different types of consoles in HILTI computing applications. In the program, we have used varied dimensioning-parameters as shear force, eccentricity, steel grade, bracket height, bracket width, and position of the cantilever in terms of concrete edge. We have when the results would be presented to the company worked with a hierarchal division, with each cantilever has its subfolders where the division is made after the given parameters, in order to get the structure that the company wants to work with.