Creo ModelCHECK > start_config_options > Sheet Metal Thickness File
  
Sheet Metal Thickness File
Specifies the name of the external text file in which standard sheet metal wall thicknesses are listed in the start configuration file. For example:
STD_SHTMTL_THICK_FILE c:\apps\mc\config\text\thick.txt
The sheet metal thickness file has the following format:
# ModelCHECK Standard Sheet Metal Thicknesses File
#
UNIT INCH
.125
.25
.375
UNIT MM
0.5
2
3
4
 
* The declaration of units must be in uppercase.