Flatbed ladder
FIG. 1 is a perspective view of the flatbed ladder showing my new design; 
     FIG. 2 is a rear elevational view thereof; 
     FIG. 3 is a left side elevational view thereof, with the right side constituting a mirror-image of the left side; 
     FIG. 4 is a top plan view thereof; and, 
     FIG. 5 is a bottom plan view thereof. 
     The broken lines showing a flatbed is for illustrative purposes only which do not form a part of the claimed design.