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Allan Block Fence Construction: Post Spacing Chart

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.

Post Spacing Options

Number of Panel Block

Post Spacing Increments*

4 7.2 ft (2.2 m)

4.5 7.9 ft (2.4 m)

5 8.6 ft (2.6 m)

5.5 9.4 ft (2.9 m)

6 10.1 ft (3.1 m)

6.5 10.8 ft (3.3 m)

7 11.6 ft (3.5 m)

7.5 12.3 ft (3.8 m)

8 13.1 ft (4.0 m)

8.5 13.8 ft (4.2 m)

9 14.5 ft (4.4 m)

9.5 15.3 ft (4.7 m)

10 16.0 ft (4.9 m)

10.5 16.7 ft (5.1 m)

11 17.5 ft (5.3 m)


*All post spacing measurements are approximate, Check with your local manufacturer to verify block specifications and more information.




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