Manufacturing cost is the sum of costs of all resources consumed in the process of making a product. The manufacturing cost is classified into three categories: direct materials cost, direct labor cost and manufacturing overhead.
Direct materials cost
Direct materials are the raw materials that become a part of the finished product. Manufacturing adds value to raw materials by applying a chain of operations to maintain a deliverable product. There are many operations that can be applied to raw materials such as welding, cutting and painting. It is important to differentiate between the direct materials and indirect materials.
Direct labor cost
The direct labor cost is the cost of workers who can be easily identified with the unit of production. Types of labor who are considered to be part of the direct labor cost are the assembly workers on an assembly line.
Manufacturing overhead is any manufacturing cost that is neither direct materials cost or direct labor cost. Manufacturing overhead includes all charges that provide support to manufacturing.
Manufacturing overhead includes
- Indirect labor cost: The indirect labor cost is the cost associated with workers, such as supervisors and material handling team, who are not directly involved in the production.
- Indirect materials cost: Indirect materials cost is the cost of associated with consumables, such as lubricants, grease, and water, that are not used as raw materials.
- Other indirect manufacturing cost: includes machine depreciation, land rent, property insurance, electricity, freight and transportation, or any expenses that keep the factory operating.
- Ostwald, P. F., McLaren, T. S. (2004), Cost Analysis and Estimating for Engineering and Management, Prentice Hall, ISBN 978-0-13-142127-1
- Lanen, W. N., Anderson, S., Maher, M. W. (2008). Fundamentals of cost accounting, MaGraw Hill, ISBN 978-0-07-352672-0