Abstract: The present invention relates to a structural connection system for modular constructions such as shelving, workstation surfaces, partition panels and supporting panels in a modular office environment. Specifically, the invention comprises a connection system characterized by a set of three interconnecting members, whose primary function is to fasten, support and/or hold up different surfaces for modular office construction. The purpose of the invention is to provide a simple and efficient system of connecting members for the construction of modular offices having constructive features which are adequate in providing ease in assembly and disassembly as well as a structural efficiency sufficiently adequate in supporting loads.