Strong floors and reaction walls are important elements of structural mechanics laboratories. They should be designed before the construction of the laboratory building for efficiency. They have a gallery used for the anchorage of the test models and storage of test equipment. In this paper, a strong floor without a gallery has been designed for an existing laboratory facility. The anchorage system has been designed to fix the model structures to the strong floor. Design issues of strong floor and reaction floor systems are mentioned in the scope of the paper. The construction of the system is simple and economical and provides a comfortable environment for experimental studies.