For the last two decades, the polysemous notion of ‘scale' has drawn an increasing amount of attention among scholars studying heritage policies and practices, often with regard to UNESCO conventions. Significantly, in many of these works, terms such as ‘global', ‘national' and ‘local' are connected to categories of ‘scale' or ‘level' that are taken for granted by the scholars who use them to guide their analysis. This paper, in contrast, promotes a different, constructivist understanding of the notion of scale. From our perspective, there is an added value to be found in focusing—without using any preconceived or external conception of scale—on the ways in which stakeholders conceive of and use scale throughout the processes of heritage making. Using the case of alpinism and the creation of its file for submission to the Intangible Cultural Heritage list, we show that the interest of this approach lies in its comprehensive ability to highlight how people define, elaborate and use scale in order to qualify their practices or to achieve specific goals.