The required area of the proposed commercial building and the number of workers is determined depending on the capacity of the company and on the basis of data and process requirements.
In the engineering industry, where there is an elaborate process of the project, and when you know the number of machines, the size of the production area can be determined by the average unit area per one machine. Thus, the average value of the specific surface area occupied by one machine in the machine shop, you can take small machines 10.12 x2, medium 15-25 m2, 30-45 m2 large and the largest and most unique machines Heavy Machinery 50 - 150 m2.
Distinguish between production and auxiliary plant area.
Production area is the area that is used for the main process that determines the functionality of the building. It includes the area occupied by industrial equipment and intended for jobs with it, the archway and passages between the equipment, space for stacking of materials and products in the production of equipment, space for intermediate (interoperable) warehouses, shop tool storage, control department, the area engaged guild handling equipment (conveyors, conveyors, roller conveyors, etc.).
Auxiliary area is the area occupied by the members of the building access roads and rail car, center aisle, parking guild Transport (electric cart), built office space and transforming, expeditions and public environments, different warehouses (except inter-operational) and repair shops.
When designing an enlarged when the product range is not certain (eg, technical design, the design of individual shops and small-scale production with an extensive and diverse range of products), production area is approximate for the annual production of finished products in tonnes from 1 m2. The latter figure is determined based on the outcome of the existing uniform shops most technologically advanced and exemplary companies.
If the value of the total annual production output in tonnes divided by the value of the annual production of finished products in tonnes from 1 m2 area, you get roughly the required plant production area in m2.