Repeat steps 5 and 6 until you have set all the column widths desired.Use the Previous Column or Next Column buttons, as desired, to select other columns.Using the Preferred Width control, set the column width as desired.The Column tab of the Table Properties dialog box. Make sure the Column tab is displayed.Word displays the Table Properties dialog box. Click the Properties option in the Table group.Word displays two additional tabs on the ribbon: Table Design and Layout. Select the column whose width you want to change.You can precisely adjust column width by following these steps: (Just click on the column dividing line and drag it one way or the other.) If you want to adjust the size of table columns so they are precise, it's pretty hard to do using the mouse. You can, if you desire, adjust the width of table columns by using the mouse.