Removing sidebar only on "landing page" of custom template?

Hi All, Hopefully someone can save me the additional hours searching : )

I need help removing the the sidebar/nav of a custom template. if it helps the template i am customizing is called letpress. I would like to remove the sidebar/nav only for the homepage. ( * I am however okay with the sidebar shown on other pages and order pages after the user logs into their account)


Thanks a bunch.
A