Change posts per row

For posts per page:

Settings > Reading > Blog pages show at most XX posts

Change XX to the number of posts per page that you want.

For the number of posts per row, you’ll need to edit your theme files – could be the category.php, index.php or other templates, depending how you’ve done your theme. Or edit your CSS to change the width of your individual post boxes to fit more or fewer per row.

Play with this CSS – strongly recommend doing this on a test server or local copy of the site:

.entry-list {

	float: left;

	width: 150px;

	display: inline;

	margin: 0 5px 0 15px;

	padding: 5px;

	}

You can increase or decrease the width.

However, since you have thumbnail images associated with each post, you’ll need to change those dimensions too. I can’t tell you off the top of my head how to do that, it depends how your theme is set up. Is this a theme you downloaded from somewhere or did you create it from scratch? Did it come with any support or documentation? Often the theme maker will tell you how to change things like this more easily.