Frau Kronenbitter of the Planungsbüro Bertram approached us about the grounds of the KOOP daycare center. We were entrusted with the design of a climbing combination for a mixed facility of both daycare and kindergarten children. Creating a mixed age climbing frame for different age groups (0-3 and 3-6) is a complex undertaking when carried out in accordance with the new DIN EN 1176/77 guidelines that cover day nurseries and daycare centers. The most important feature of our climbing combination is various closed climbing paths and spaces. The things that are difficult – yet safe - for one group of toddlers might already be boring for the older children. It is important to find the fine line where a design-safety consensus can be achieved.