a. Service Requirement:
- Material should satisfy its own properties like size, shape, colour, strength, stiffness, durability, chemical composition, corrosion resistance, etc.
- Material should be easy to handle.
- Material should be easily available in nearby area.
b. Fabrication Requirement:
- Fabrication process refers to how a material is created, processed and assemble.
- Material should easily fabricated as per requirements.
- E.g. Metal should be easily casted, forged, machined, rolled, etc.
c. Economic Requirement:
- Material should be of good quality.
- Its initial cost, transportation cost and maintenance cost should be affordable.
d. Environmental Requirement:
- Material should create minimum population.
- It should not react with chemical or any substance present in environment.
- It should be able to bear weathering affects.
e. Architectural Requirement:
- Material should have good appearance and texture.
- Material must have good shape and size.
- It should be free from cracks and defects.
- Material should be durable.