Bond Street Restoration LLC 

rosthru.JPG (27128 bytes) They loved the idea of installing a 14' header, providing a 12'opening, into the greenhouse.  By incorporating acorn hinges, and ball casters I was able to do a bi-fold arrangement with four 3' 0" solid oak, beveled glass panels.  If desired, the panels can be lifted off the hinges, and removed, allowing unrestricted passage between the two areas.