Assign the value to the ColumnWidth property of the ActiveCell using:

 
Sub colDemo()
     ActiveCell.ColumnWidth = 20
End Sub

1.	Select active column
2.	Select entire column
3.	Select first column to last column
4.	The BubbleSort() procedure sorts a column of integer values from lowest to highest value
5.	converts the Integer to a String representation of the same column.
6.	Array to Columns
7.	Assign the column width of one cell to another cell on the active sheet, using:
8.	Adjusting Column Widths
9.	The Clear method
10.	ClearContents method deletes the contents of the range but leaves the formatting intact.
11.	ClearFormats method deletes the formatting in the range but not the cell contents.
12.	The NumberFormat property represents the number format (expressed as a text string) of the Range object: statement changes the number format of column A to percent with two decimal places
13.	Is in last column
14.	Change column width
15.	Make a range autofit
16.	Returning the Last Used Cell in a Column or Row with Worksheet

Assign the value to the ColumnWidth property of the ActiveCell using: : Column « Excel « VBA / Excel / Access / Word