Calculation for Determining Average Decimal of Coil/Sheet

When determining the average decimal of a coil, you must first have the actual weight of the coil (provided by a certified scale).  Divide the actual weight by 40.80 (40.80 represents the actual number of pounds per square foot by one inch thick for a slab of steel).  Next divide that figure by the width of the coil in feet.  Lastly divide that figure by the total linear footage.

In short:

  • Coil: Scale weight (actual weight) divided by 40.80 divided by Width of Coil in Feet divided by Linear Footage.
  • Sheet: Net weight (less dunnage) or actual weight of skid divided by 40.8 divided by square feet of sheet divided by sheet count.