Solutions are commonly viewed as an integrated bundle of products and services. The solutions also need to be adapted to the specific demands of individual customers, resulting in a high degree of customisation. At the same time, manufacturers offering solutions are guided by strict demands regarding productivity and economies of scale, which, at least partly, are enabled by a higher degree of standardisation. Hence, manufacturing firms have to balance internal demands for efficiency with demands for customisation of solutions. To guide firms concerned with this challenge, a managerial framework for customisation of solutions based on commonalities is proposed.