Hollow Core vs. Solid Wood Doors - The Spruce
23 Oct 2017 Deciding between hollow core and solid wood doors at first seems like an easy decision. Individual natural wood elements that fit together to form a single unit. Solid door but made of composite wood that is painted or faced with veneer. Used Where? Interior only, Interior or exterior. If used for exterior, solid wood doors need to be In many cases more heavier and more solid than natural solid wood doors because composite wood is denser than natural wood.