Allan Block Fence Construction: Post Spacing Chart
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For the approximate post spacing and associated number of panel blocksfor a concrete fence, refer to the table below. To accomodate a projects specific lengths, use a combination of two or three different post spacings in the block fence. Using the shorter post spacing may not reduce the pile depth.
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Post Spacing Options
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Number of Panel Block
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Post Spacing Increments*
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| 4 |
7.2 ft (2.2 m) |
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| 4.5 |
7.9 ft (2.4 m) |
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| 5 |
8.6 ft (2.6 m) |
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| 5.5 |
9.4 ft (2.9 m) |
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| 6 |
10.1 ft (3.1 m) |
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| 6.5 |
10.8 ft (3.3 m) |
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| 7 |
11.6 ft (3.5 m) |
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| 7.5 |
12.3 ft (3.8 m) |
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| 8 |
13.1 ft (4.0 m) |
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| 8.5 |
13.8 ft (4.2 m) |
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| 9 |
14.5 ft (4.4 m) |
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| 9.5 |
15.3 ft (4.7 m) |
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| 10 |
16.0 ft (4.9 m) |
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| 10.5 |
16.7 ft (5.1 m) |
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| 11 |
17.5 ft (5.3 m) |
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