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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) |
| 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 |
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*Please Note:The Keystone LegacyHewnstone units were designed for unreinforced wall heights no greater than 3’-0” (91 cm) high with compacted sand or gravel backfill and level grade above and below wall. Design assumes no surcharge loads.Wall height is measured from top of leveling pad. The estimating chart provides for the number of units based on selected height and length of wall. For taller wall applications, contact your local KEYSTONE Representative for design, product and reinforcing options. |
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