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Estimating |
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Use this guide for estimating the number of Keystone Legacy Stoneunits required. |
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WALL HEIGHT* |
WALL LENGTH (measured at wall face including curves) |
| 4' |
8' |
12' |
16' |
20' |
24' |
| 6" (1 course) |
4 |
8 |
12 |
16 |
20 |
24 |
| 12" (2 courses) |
8 |
16 |
24 |
32 |
40 |
48 |
| 18" (3 courses) |
12 |
24 |
36 |
48 |
60 |
72 |
| 24" (4 courses) |
16 |
32 |
48 |
64 |
80 |
96 |
| 30" (5 courses) |
20 |
40 |
60 |
80 |
100 |
120 |
| 36" (6 courses) |
24 |
48 |
72 |
96 |
120 |
144 |
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Max. height vertical position |
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Max. height setback position |
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*Please Note: The maximum wall height is not to exceed 36". The maximum height is based on a level grade, total granular soil, wall built in setback position, and no surcharge. Contact your local Keystone representative for design options on wall heights exceeding 36" or supporting surcharges and backslope. Change in color on chart denotes maximum wall height for vertical and setback positions. Keystone recommends cap units as the top course and/or caps of freestanding walls secured with Keystone KapSeal™ adhesive. |
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