Portable building

Claim 1

A PORTABLE BUILDING COMPRISING: A FIRST STRUCTURAL UNIT TO FORM SUBSTANTIALLY ONE HALF OF THE BUILDING AND HAVING AN EXTERIOR FACE ALONG ONE SIDE THEREOF, A SECOND STRUCTURAL UNIT TO FORM SUBSTANTIALLY THE OTHER HALF OF THE BUILDING AND HAVING AN EXTERIOR FACE ALONG ONE SIDE THEREOF AND COMPLEMENTING SAID EXTERIOR FACE ALONG ONE SIDE ONE SIDE OF SAID FIRST UNIT, EACH OF SAID FACES INCLUDING A PLURALITY OF ADJACENT REMOVABLE PANELS TO PROVIDE A CLOSED WALL THEREALONG, SAID PANELS EXTENDING FROM THE TOP TO THE BOTTOM OF SAID FACES TO PRESENT AN UNOBSTRUCTED OPENING IN SAID WALL WHEN REMOVED, AND AT LEAST ONE OF SAID FACES INCLUDING A PERIPHERAL EXTENSION PROJECTING LATERALLY BEYOND SAID PANELS, SAID PERIPHERAL EXTENSION HAVING A GASKET MEANS ON THE EXTENDING EDGE THEREOF TO PROVIDE A SEALED JOINT BETWEEN SAID UNITS AND DEFINING A VERTICALLY DISPOSED CHAMBER BETWEEN THE PANELS OF SAID UNITS WHEN SAID FACES THEREOF ARE BROUGHT TOGETHER IN JUXTAPOSITION, WHEREBY SELECTED ONES OF SAID PANELS MAY BE REMOVED TO ESTABLISH AN OPENING BETWEEN SAID UNITS AND STORED IN THE CHAMBER DEFINED BY SAID PERIPHERAL EXTENSION AND OTHERS OF SAID PANELS LEFT IN PLACE.