Depth Key Code Inches = Value 1" = 12.00 2" = 6.00 3" = 4.00 4" = 3.00 5" = 2.40 6" = 2.00 7" = 1.71 8" = 1.50 9" = 1.33 10" = 1.20 11" = 1.09 12" = 1.00 13" = 0.92 14" = 0.86 15" = 0.80 16" = 0.75 17" = 0.71 18" = 0.67 19" = 0.63 20" = 0.60 21" = 0.57 22" = 0.55 23" = 0.52 24" = 0.50

To Calculate Yardage needed for your project enter Length, Width, Width of Border(or Width of Walkway) and Depth.

Note: you must enter your Depth Key Code Value into the "Rectangular Border Calculator" for Correct Calculation.

Example: there is a shed 14 feet by 10 feet and the owner wants to put a 2 foot crushed stone border around the shed and would like the stone to be 3 inches deep (see Depth Key Code).

 Example Length x 14 Width x 10 Width of Border x 2 Depth Key Code Value x 4

NOTE: Your Values are to be entered into the Calculator as "Feet" Not Inches.

# Rectangular Border Calculator

Length:    Feet
Width:    Feet
Width of Border:    Feet (Width of Walkway)
Depth:    Value (from Depth Key Code)

Cubic Yards
If use of a Gravel or Fill Product is needed, also calculate for Compaction.

Compaction (Appox 20% for Gravel)