Does using directory structure in a website affects Page Rank. Well to me I think it doesn't. Looking for answers from the experts.
The directory structure of your site doesn't affect PR. However, the way you link between your pages does. You can push PR to specific pages on your site by linking to them from other pages. I would recommend that you pick important landing pages on your site and link to them from a variety of pages that are related. Do some research on "internal link structure" to see some ways you can improve the performance of your important pages.