Drivable post support anchors are galvanized metal spikes that you drive into the ground with a sledge hammer or jackhammer in to support your fence posts. Once in the ground, the post slides into the anchor and is secured with bolts or glue.
There are many benefits (other than eliminating the digging, of course) to using a drivable anchor:
1) They reduce/eliminate the effects of frost heave – Frost heave happens when the expansion of frozen moisture exerts pressure on your fence posts, eventually “heaving” them out of the ground, resulting in leaning or even broken fences.
2) They can reduce installation time – With little experience, the installation time for Oz-Post Post Support Anchors can be reduced to as little as 5 minutes per post.
3) They protect wood posts in the ground – Oz-Post Support Anchors are designed to allow water to drain through below the level of the wood post, prolonging its useful life.
4) They can cut through tree roots, small rocks, and asphalt (if you use a jackhammer) – When your digging a hole the old fashioned way, you never know if you’re going to hit a rock or a network of tree roots, forcing you to remove the obstruction before continuing. When using a drivable anchor with a jackhammer, most in-ground obstacles are easy to slice through or push around.
*Always contact your One Call Center to locate utility lines before digging on your property. Dialing 811 will route you to your local One Call center.
Support anchors are available for a wide variety of fence post types and sizes including: vinyl, treated wood, cedar, aluminum, and chain link. Even more than that, a drivable post anchor can be used on mailbox posts, sign posts, and deck posts, since nearly all projects use standard sized posts (ie. 4×4, 4×6, etc.).