In the Plumbing workspace, click Manage tabStyle & Display panelStyle Manager.
In the left pane of Style Manager, under Plumbing Objects, click one of the sizing table definitions (supply pipe or sanitary pipe).
In the left pane of Style Manager, click Standard, right-click, and click Copy.
Click the applicable Sizing Table Definitions item (Supply Pipe or Sanitary Pipe), right-click, and click Paste.
Select Standard (2), right-click, click Rename, enter the name of the sizing table you are creating. Then press Enter.
Click the General tab, and change the name and description. Click Notes to add text or reference documentation.
Specify definitions that are specific to Supply or Sanitary pipes:
To create a supply pipe sizing table definition, click the Equivalent Plumbing Line Lengths tab and use the New Row, Remove Row, New Column, Modify Column, and Remove Column buttons to change the table definition as necessary.
To create a sanitary pipe sizing table definition, choose either the Stacks, Branches, or Offsets tab and use the New and Remove buttons to change the rows in the table definition as necessary.