ISO 18408:2019 applies to reinforced concrete building consisting of load bearing walls of reinforced concrete buildings [such buildings are called reinforced concrete box-shaped wall buildings and (RC wall building)] or to the part of RC wall building which uses both this and other types of structure.This document applies to RC wall building as follows:— RC wall building with 5 or fewer aboveground storeys;— eaves height of 16 m or less;— storey height on each storey of 3 m or less;— on the top storey, the storey height can be 3,3 m or less;— if the roof has a slope, the sum of the storey height of the top storey and the height from the eaves to the ridge of 4 m or less.Deep foundations, such as piles and caissons, and their pile footings and caps, are beyond the scope of this document, and are not covered by it.