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In the tree view, click Piping > Piping Specification > Piping Materials Classes.
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In the Piping Materials Classes branch, open a specification and click Piping Materials Class Rules > Field Fit Length Rule.
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Click the Insert Row Command to insert a blank row in the grid view.
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In the Construction Requirements End 1 column, type the construction requirement codelist value for end 1.
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In the Construction Requirements End 2 column, type the construction codelist value for end 2.
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In the Field Fit Length column, type the field fit length to use when computing the cut length of plain piping for the defined weld type, diameter, and construction requirements.
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In the Nominal Piping Diameter From column, type the lower boundary for nominal pipe diameter.
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In the Nominal Piping Diameter To column, type the upper boundary for nominal pipe diameter.
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In the Nominal Piping Diameter Units column, type the units for the NPD. For example, type mm or in.
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In the Weld Class column, enter the weld class for which to define a field fit length.
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In the Weld Type column, enter the weld type code for which to define a field fit length.
.The Field Fit Length sheet in the workbook corresponds to the Field Fit Length Rule node in the Catalog task. See Piping Reference Data.