#5 rebar has the following specifications:
- Diameter: 5/8 inch (0.625 inches) or approximately 15.875 mm (commonly rounded to 16 mm in metric systems).
- Weight:
- Imperial: ~1.043 pounds per foot (lb/ft).
- Metric: ~1.58 kilograms per meter (kg/m).
- Cross-sectional Area:
- ~0.31 square inches (in²).
- ~200 mm² (for 16 mm metric size).
This size is standardized in the U.S. (ASTM A615) and widely used in construction for medium-duty reinforcement, such as in foundations, beams, and columns. The metric equivalent is typically labeled as 16 mm rebar.