*  Indoor .040 Gauge Signs .040 is a sign for indoors (.040 indicates thickness)

*  Indoor or Outdoor intermediary .063 Gauge (.063 indicates thickness)

*  Outdoor .080 Gauge  .080 (.080 indicates thickness)

*  ACI  has Graffiti coating for signage that is applied to the signs after completion to protect them       from excessive  dirt and reduce the effects of vandalism and graffiti.  Cost for graffiti coating is $1.50 per square foot.

      last letter of the part number means:  
N = Non Reflective     R = Reflective     P = Painted Aluminum    H= High intensity