Create Nominal Bore Table Form
- Last UpdatedNov 12, 2025
- 2 minute read
A Nominal Bore Table must be created below a Table World (TABWLD) element.
Note: The Nominal Bore Table is only used for specification creation and not for providing wall thickness data in the Design. Refer to Wall Thickness Table Form.
Create a Nominal Bore Table
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To open the Create Nominal Bore Table form select Create > Spec Table > Size Range Table from the main window drop-down.

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Enter a Name to be assigned to the new Nominal Bore Table.
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Click OK to create a Nominal Bore Table (NOMTAB element).
The following window opens:

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Highlight bores in the Available Nominal Bores (mm) list by left clicking on the desired bore size. Multiple bores can be selected at once by left clicking and dragging the mouse pointer. To remove particular highlighted entries hold down the CTRL key and left click on a bore size.
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Add highlighted bores to the Size Range Table by clicking on the ADD > option.
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Add all available bores to the Size Range Table by clicking on the ADD ALL >> option.

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Remove a bore from the Size Range Table by highlighting a light blue entry in the main table and click on the Remove < option.
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To remove all bores from the Size Range Table click on the Remove All << option.
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Click Apply to commit the changes.
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Close the form by clicking the X on the top right.
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To return to the Size Range table select Modify, then select Spec Table from the main menu.