Rider Weight (lbs.)
The rider weight query will return boards suitable to the weight of each rider.  Rider weight is broken down into four divisions:

40-110lbs
111-150lbs
151-200lbs
201-300lbs

Based upon these weights, boards were assigned according to their length, i.e. shorter boards are more appropriate for smaller riders.  
  These divisions are:
Weight        Board Length        
40-110lbs        <125                   
111-150lbs      126-136               
151-200lbs      137-142               
201-300lbs       >143