QR codes are currently booming. You can find them practically everywhere: on information posters, advertising flyers and tickets to cultural events. In addition, a number of restaurants have started placing them on tables for contactless menus and payments during the covid-19 pandemic. Anyone who knows the use of QR codes from practice knows how fast it is to scan and retrieve information from them. Thanks to this, they have spread from customers to industries, including construction. Adam Heres Vostárek, an expert on the digitization of processes in the construction industry from the company PlanRadar, explains how this technology can be effectively used in construction and real estate management.