By default, ACT! provides you with six identical-sized cells when you create a new Dashboard. However, you can also create a double-wide component if the need arises. For example, you may decide that one of the components in your brand new Dashboard is going to use the list view format, and that you would like to include numerous columns in that component. Using the default component sizing conventions means that you'll probably have to use the horizontal scroll bars to see all of the columns like in the following screenshot:
If you think you're going to be creating a list component on your Dashboard you may want to think about which fields you'll want to have display on the component. For example, if you're creating a component based on opportunity information you may give some thought to the opportunity fields you want to include.