Formulas

General Formulas

  • There are 2000 pounds in a ton
  • For most bulk materials, number of yards x 1.5 = number of tons
  • Area of a square or rectangle = width x length
  • Area of a circle = 3.14 x radius squared
  • Circumference of a circle = 3.14 x diameter
  • Volume of a cube = width x length x height
  • Volume of a tube = 3.14 x radius squared x height
  • There are 27 cubic feet in a cubic yard
  • Most boulders weigh about 170 lbs per cubic foot

Coverage

  • 1 Gallon of Plasterweld or Weldcrete Willver
    Approx. 200 SQ FT
  • 1 Yard of Most Bulk Materials Will Cover
    320 SQ FT @ 1 inch thick
    160 SQ FT @ 2 inch thick
    120 SQ FT @ 3 inch thick
    80 SQ FT @ 4 inch thick
  • 1 Ton of Flagstone Will Cover
    Approx. 120 SQ FT @ 1 ¼ inch thick
    Approx. 100 SQ FT @ 1 ½ inch thick
    Approx 75 SQ FT @ 2 inch thick
  • 1 Ton Of Most Wallrock Will Cover Approx. 35 SQ FT
  • Square Foot per Piece of Cut Stone
    Length x Width (in inches) divided by 144 = SQ FT per piece

Formula for Mortar

  • 3 Parts Sand
  • 1 Part Common Cement
  • ½ Part Lime