16" Legacy Stone®  
Use this guide for estimating the number of Keystone Legacy Stoneunits required.
* Also available in tri-plane in select markets.
  height width depth weight
unit 6" 16" 10" 42lbs
cap 3" 12"/16" 11.25" 37lbs
WALL HEIGHT*
 WALL LENGTH (measured at wall face including curves)
6' 12' 18' 24' 30' 36'
6" (1 course) 5 9 14 18 23 27
12" (2 courses) 10 18 28 36 46 54
18" (3 courses) 15 27 42 54 69 81
24" (4 courses) 20 36 56 72 92 108
30" (5 courses) 25 45 70 90 115 135
36" (6 courses) 30 54 84 104 138 162
  • Be sure to bury the first course.
  • Maximum wall height not to exceed 2 feet.
  • This chart is based on site conditions which include a level grade, granular soil and no surcharge.
  • Contact Keystone Retaining Wall Systems at 1-888-601-2326 for walls over 2 feet.
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