Often asked: How To Build Gabion Retaining Wall?

Do gabion walls need foundations?

Most gabion walls do not require concrete foundations.

How much does it cost to build a gabion wall?

To estimate cost, figure on $35 per cubic yard (a 3-foot-square cage) for standard-gauge galvanized mesh. Gabion walls can be made in virtually any size (within structural limitations) for site-specific needs.

How high can you build a gabion wall?

Any higher than 3m you can still use the same principal of increasing the depth by. 5m but it may be preferable to stagger the baskets back and getting a structural engineer to assess the stability of the site would be a preferable option. There are 2 types of curved walls inside and outside bends.

Can a gabion wall be used as a retaining wall?

Gabion walls can be used in landscapes as retaining walls, decorative site walls, seating walls, accent walls and more.

What are the disadvantages of gabions?


  • Gabions are sometimes criticized as being unsightly.
  • Low habitat value.
  • Gabions are more expensive than either vegetated slopes or riprap.
  • The wire baskets used for gabions may be subject to heavy wear and tear due to wire abrasion by bedload movement in streams with high velocity flow.
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What is the cheapest retaining wall to build?

What is the cheapest retaining wall material?

  • Treated pine and is the least expensive material.
  • Hardwood is more expensive than treated pine.
  • Railway sleepers are another – slightly more expensive – option and are built to withstand ground and water contact.
  • Concrete sleepers are more expensive.

Do you need planning permission for a gabion wall?

Planning permission is required if the wall is to be over 1-metre high and next to a road or pathway; or over 2-metres high elsewhere. Independent, freestanding retaining walls may not require building regulation approval; however, any structures must be structurally sound and well maintained.

How do you fill cheap gabions?

So, the cheapest way to fill gabion baskets?

  1. Old bricks and blocks. These are a great option for filling gabion baskets very cheaply.
  2. Old paving stones.
  3. Outline with expensive stone then fill with cheaper ones.
  4. Ask your neighbours!
  5. Wine bottles.

How long will a railroad tie retaining wall last?

Cons: Limited life span (10 to 20 years) because timbers rot and are damaged by pests. Cannot be used to create curving walls as can concrete and stone.

Do you need drainage behind a gabion wall?

Good drainage makes gabion walls especially useful.

This is because the gaps between the rocks prevent the build-up of pressure from trapped water that commonly occurs with other types of retaining walls. Gabion wall designs can be highly flexible and are appropriate for any sized project from very small to very large.

How thick should a gabion wall be?

Gabions can be cut on site to achieve your required dimensions. The standard thickness for walls up to 3m in height is 3mm. 4mm is the architectural spec, 5mm is what we would refer to as the military spec or for use on higher walls.

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How much rock does it take to fill a gabion?

Based on the aperture above, the recommended rock size is a minimum of 70mm stone.

What is the easiest retaining wall to build?

For the average do-it-yourselfer, building a retaining wall is easiest when using masonry blocks that will be stacked no taller than three feet, with no mortar binding the stones or concrete members. (For a curved wall, mark instead with a garden hose or spray paint.)

How long do gabion baskets last?

They have a lifespan of 60 years and don’t fail like concrete walls when water builds up behind. They are also considerably cheaper than standard block retaining walls.

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