A favourable end-of-batch price can reduce the cost of the building envelope. The condition is that the material matches the design and that the entire delivery can be used efficiently. Panels of similar colour and thickness do not necessarily fit together. For a steel building, the joint geometry, lengths and documented properties must also be compared. Only then can it be assessed whether the purchase actually brings a saving. A sandwich panel has a specific core, facings and edge profile. The intended use and the permitted support conditions are important. A roof panel is not an automatic substitute for a wall panel. In a steel building, the material must correspond to the place where it is to be installed. The general term insulation board is not sufficient for ordering.

A good bill of materials is not limited to the weight and length of profiles. It should make it possible to establish which elements are to be produced, how they will be connected and under what conditions they will work. For a steel hall, the design, the order and the construction documentation must be consistent. A single missing detail may only come to light during assembly, when the steel is already on site and transport is waiting to be unloaded. Before commissioning production, establish which drawings are binding. Changes to doors, heights or loads must reach all participants. A steel structure made to the previous version will not become compliant by changing the file name. In the order, it is worth stating the revision number of the documentation and the method of approving subsequent corrections.

With a ready-made structure, three questions matter most: which variant is available, what the set includes, and what assumptions the design is based on. Our prefabricated steel structures organise the purchase around specific series. Available batches can be ordered without waiting for every element to be made from scratch. Before we confirm delivery, however, we confirm the specific set and its collection date. We offer standard duo-pitch structures in widths of 8, 10, 12, 14, 16, 18 and 20 metres. In the series up to 12 metres, frames repeat every 4 metres. For widths from 14 to 20 metres, the spacing is 5 metres. The length of the steel hall is determined by the number of bays for the given series, taking into account the design and the location.