Regular Expanded Metal (standard expanded metal)is a finished product as it comes from the press after having been die cut and expanded. Each sheet that comes off the expander is in standard or regular form with the junctions at the strands and bonds forming a ridge surface.
Typical applications include safety guards on various pieces of equipment or machinery.
The illustration to the right shows that the strands and bonds form a sharp angle to the original plane of the solid sheet.

 
1. Camber- The greatest deviation of a side edge from a straight line shall not exceed 3/32 inch per foot (0.8mm per 100mm) of dimension.
2. Taper- Edges shall not deviate from parallel by more than 1/16 inch per foot (0.5mm per 100mm) of dimension, or 1/4 inch (6.4mm) overall, whichever is greater.
3. Squareness- Ends shall not be more than 1/8 inch per foot (1mm per 100mm) out of square or 1/2 inch (12.7mm) overall.
4. Flatness(levelness)- Sheets shall be free from waves or buckles that are in excess of 1-1/2 inch (38.0mm) from a plane surface.