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Anchor Fence Drive Anchors Like the foundation of your building, the foundation of your posts is important to the strength and life of your fence.
The founder of Anchor Fence invented the Anchor method of setting posts way back in 1892. Today, much of the fencing along interstate highways, at military bases, and industrial sites is installed using this method called "Shoes & Anchors." The materials in Shoes & Anchors costs about the same as concrete. There can be a substantial savings, however, if the concrete cannot be dumped directly from the truck into the post holes. It takes about 100 wheelbarrows of concrete to set the posts on 1,000 feet of fence. It takes only 5 or 6 wheelbarrows full of Shoes & Anchors to do that same 1,000 feet. Thats quite a labor savings. Also, there are 100 wheelbarrows of dirt to dispose of if you use concrete compared to no excess dirt with Shoes & Anchors. Post settings are vital to the strength and appearance of your fence. The posts of your Anchor fence can be installed in either concrete or drive anchors. As you look at the following tests, youll see why we recommend drive anchors. Its practically impossible to dig any two post holes in the same shape. This means the depth and width and the strength of the concrete footing will vary from post to post. So, if concrete is to be used, it should extend below the end of the post, as shown in this picture and be wider at the bottom than it is at the top. If this is not done, severe freezes will probably begin to push the post and the concrete out of alignment.
If you choose concrete, you must have a wider footing at the bottom than the top. If this is not done, frost will heave the post upwards, resulting in loose, out of line posts. But even then the footing wont be as strong as drive anchors.
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