The present invention is directed generally to a demountable silo (10) comprising a series of interconnected silo modules (12A to 12F) constructed in accordance with a preferred embodiment of this invention. The silo modules such as (12A) are each of a substantially identical configuration and interconnected in a side-by-side and end-to-end relationship. The demountable silo (10) is designed to contain particulate material and configured depending on the nature of the material and its storage requirements. It will be appreciated that the provision of multiple silo modules such as (12A to 12F) together contains significantly more particulate material in a heap than a single silo module. The maximum storage capacity for the demountable silo (10) is determined largely by the angle of repose of the heaped particulate material.