Folded, the map is 5" x 8.5".  Unfolded, the whole thing is 50" x 21".  However, if you wanted to use it on a wall, the map of the USA is about 35" x 21".  The scale is 1" = 75 NM.  The rest of the space on the front is occupied by a legend and a Northeast Coast Inset. 

On the back of the map, it includes an Enroute Advisory Service Map, Wind and Temperature Aloft Forecast Station Map, Aerodrome Forecast Stations Map, a mileage table, a METAR/TAF Outlet Listing, and METAR/TAF legends/keys.