The company needs additional warehouse space, and there is a free rectangle on the plot. In such a situation, a modular hall seems the obvious choice. This changes when a long production line, a tall machine or a wide overhead crane has to go into the building. The choice should not be decided by the name of the system alone. First, the company's needs must be compared with the scope covered by a ready-made steel structure. Modular steel structures use repeatable components and a fixed geometry. The system may provide for several widths, a specified frame spacing and extension of the steel hall by further bays. As a result, part of the design and production work does not start from scratch. The supplier knows which components need to be prepared for a given variant.

A thin wall panel is sometimes considered for a storage cupboard, seasonal store or partitioning off an area inside a hall. However, savings depend on suitability for the building's function. A 40 mm panel bought for a room that is later to be permanently heated may force costly changes. First establish the requirements, then compare prices. Dry garden equipment, textiles and electronic devices do not have the same requirements. Rain protection alone is not enough for items sensitive to moisture and large temperature fluctuations. Ask whether the store is to be merely enclosed, periodically heated, or maintain constant conditions throughout the winter.