Change the width of a contact card

On the View menu, point to Arrange By, point to Current View, and then click one of the card view types.
On the View menu, point to Arrange By, point to Current View, and then click Customize Current View.
Click Other Settings.
In the Card width box, type the number of characters for the width.

You can quickly change the width of cards by dragging the vertical dividers between cards. To maximize the view of cards, double-click a vertical divider.