How to install a ground anchor

Written by joshua smyth
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How to install a ground anchor
Ground anchors have screw-shaped heads. (augers, used to dig deep foundations for a building image by Stephen Gibson from

A ground anchor is a long metal shaft with a large augur -- a pointed and screw-shaped head -- at one end. Ground anchors hold the walls and posts of outdoor structures to the ground without a foundation or concrete-filled post holes.The strength of the ground anchor's grip is largely determined by the consistency of the site's soil. Ground anchors commonly are used to hold down sheds, decks, sunrooms and other outdoor additions. Installing ground screws is simple, but involves quite a bit of physical strength, so enlist the assistance of a helper.

Skill level:

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Things you need

  • Chalk or spray paint
  • Installation wrench
  • Hammer
  • Stabiliser plate
  • Fastener head

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  1. 1

    Mark the site for the ground anchor with chalk or spray paint.

  2. 2

    Stand the ground anchor on the marked spot, with the sharp tip facing downward.

  3. 3

    Snap the ground anchor installation wrench onto the shaft of the screw. This is a large bar that sits perpendicular to the anchor and can be used to gain leverage to turn it.

  4. 4

    Turn the installation wrench until the top of the anchor is at ground level. This requires two people to push on either side of the long wrench bar.

  5. 5

    Remove the wrench. Fit the stabiliser plate over the protruding top of the anchor.

  6. 6

    Hammer the stabiliser plate into the ground. This prevents the top of the anchor from shifting sideways.

  7. 7

    Slide a fastener head over the threaded rod rising from the top of the ground anchor. Beams can then be attached to the head and held to the ground.

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