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Stone:

Recommended depth of 1 ½” stone in landscape bed is 3”
Recommended depth of driveway material for pathways is 4”

Equation for decorative stone and driveway material: (square footage x desired depth, in inches) divided by 324 = needed cubic yards 

Stone Weights

(2000 lbs. = 1 Ton)

  • 6" = 9 -12 lbs.
  • 8" = 20 - 25 lbs.
  • 10" = 45 - 50 lbs.
  • 12" = 75 - 90 lbs.
  • 18" = 200 - 250 lbs.
  • 24" = 500 - 650 lbs.
  • 30" = 1100 - 1300 lbs.
  • 36" = 1 ton - 1.3 tons

    Boulder Guideline
  • 6" - 8" Boulders = 12-15 sq. ft. of wall per ton
  • 12" - 18" Boulders = 8 -10 sq. ft. of wall per ton
  • 18" - 30" Boulders = 5 -7 sq. ft. of wall per ton

    Average Number of Cobbles Per Ton
  • 4"- 8" cobbles average. 6 lbs –approx. 330 stone per ton
  • 8"- 12" cobbles average. 20 lbs –approx. 100 stone per ton
  • 12"- 18" cobbles average. 60 lbs –approx. 23 stone per ton

Sand:

  • As a rule of thumb, an average sandbox takes about ½ cubic yard or 12 bushels
  • Equation for sand: (square footage x desired depth, in inches) divided by 324 = needed cubic yards 

Dirt and Mulch:

  • Dirt depth on new lawns 4”+     top dressing lawns ¼”
  • Mulches 3”+ in landscape beds
  • We base our dirt and mulch prices on volume, by the cubic yard, which is a 3’x3’x3’ cube. Generally a cubic yard will cover 80 square feet at a 4” depth on average or an 8’x10’ area.
  • Equation for dirt and mulch: (square footage x desired depth, in inches) divided by 324 = needed cubic yards 
  • Or: use our cubic yard calculator here!