Thickness - inches  
  Surface Area of Mold-Square Feet  
  Layers of Chop Strand Mat  
  Approximate Weight of Mat  
  Resin needed - Gallons  
  Gelcoat Needed - Gallons  
  Yards of Chop Strand Mat - 50"  
  Yards of Chop Strand Mat - 38"  
  Catalyst Needed in Ounces   
  Change the cells for thickness and surface area to change values.
  Does not include wastage or drop  
  Use at your own risk