Truncating Posts

Hi,

I’m looking for a way to have my posts truncate automatically after a certain number of words. I know I can add the “more” tag, but I need a way to do it automatically.

I’ve tried using the “WP Limit Posts Automatically” Plugin and the “Limit Post Add-On” but they seem to just mess up the layout on my page. I think it could be because they haven’t been updated in a while. Are there any recent plugins that do this and work?

Thanks a lot for any suggestions,

Kendrick