This page contains a plugin you might like to use if you need to work out an arrangement of columns for a given width, such as for a website design. Select the number of columns and drag the box edge to choose the total width.

The plugin shows all the available arrangements for column widths greater than twice the separation, with the width, height and separation indicated on each one. For the discussion and maths behind this, see my next post: Arranging columns…

Now with added goodness: Aspect ratio selection for common image formats