This paper considers the importance of quickly erectable construction systems, as well as their main purpose and applicability in various situations. Based on the analysis of scientific publications and the results of patent search, the authors suggest the structural features and technological solutions for installation of a new small-size quickly erectable collapsible construction system. The system is designed for temporary accommodation of a group of people involved in construction, geological exploration and other works in hard-to-reach areas, for tourists etc. Such a collapsible construction system can be adapted to serve as a temporary shelter for people surviving natural calamities. The foundation of the suggested system is an enclosed three-dimensional structure (crate) where the necessary structural elements are kept pending the assembly of the construction system, including telescopic legs and other tubular framing structures, rolls of tent covering, set of coupling elements, and supports. The specific features of this new system, as compared to similar space planning solutions, are low labor costs involved in its assembly and dismantling, small weight ensuring transportability of a collapsed and packed system, and reusability. Other benefits of the new small-size construction system include its low overall cost, environmental safety and energy efficiency.