Since 1978, the Ethnographical Museum in Stockholm has been housed in a completely new building; the facilities include new storage for the roughly 150, 000 objects for which the museum is responsible. Storage in the new premises was classified on the basis of groups of material and based on climate zones to create optimal storage conditions for each individual object. The limited storage volume available also made it necessary to classify the objects in each material group into size groups. The museum is divided into five different climate zones. In the exhibit halls and main storage there is a common background climate. In addition, special climates are provided for lacquer work, bronzes, textiles, and furs. The utmost importance has been attached to the attainment of storage systems satisfying the stipulated requirements of flexibility and simplicity, and made of material that does not damage or affect the objects. The storage systems are also designed with due allowance to the needs of the fire fighting authorities, cleaning, and pest control.