How To Concrete Retaining Wall?

How deep does a concrete retaining wall need to be?

The depth to the bottom of the base slab should be kept at a minimum of two feet. However, it should always be below the seasonal frost line, and that often is much deeper in northern climates. The length of the base slab is usually about 50% to 70% of the total height of the wall (bottom of base to top of stem).

Do I need a concrete footing for a retaining wall?

No, you do not need a concrete footing, it will actually adhere the wall from being able to naturally shift. It is best to use a coarse stone aggregate for the Retaining Wall footing.

What kind of concrete do you use for a retaining wall?

Poured Concrete Retaining Walls. Many contractors shy away from poured concrete, preferring to use CMU block with a plastered face. The risk of cracking in poured walls and the difficulty in repairing them makes block and plaster a more forgiving choice.

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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.

How do you calculate concrete retaining wall?

Retaining Wall Calculator



Enter Length and Height in feet, and thickness in inches. Formula: V = L x H x T.

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.)

Should you use fabric behind retaining wall?

A barrier behind the wall, lined in fabric and filled with gravel, creates an area for water collection and movement. The fabric helps keep the voids in the gravel from packing with silt.

Do you need landscape fabric behind retaining wall?

Whether the wall is made from stones, bricks or wood, it is important to provide a barrier between the building blocks and the soil. Landscape fabric is thin and sturdy and is a simple way to preserve a retaining wall’s construction.

How long does a concrete retaining wall last?

Concrete is a popular material choice for a variety of hardscaping structures due to its cost-effectiveness and durability. A concrete retaining wall can be expected to last anywhere from 50 to 100 years.

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Are poured concrete walls better than block?

Poured concrete wall foundations are arguably stronger than cinder blocks. Poured walls have a better lateral strength, which means they are able to resist more pressure from the water and the soil from the outside. Poured walls tend to be the preferred choice of new construction builders.

How much is a poured concrete retaining wall?

The total cost to have a concrete retaining wall installed will be a combination of material and labor prices. For a basic wall you can expect to pay between $30 and $60 per square foot.

What is the best retaining wall block?

Timber and inter-locking-concrete-block walls are great DIY retaining wall ideas. Mortared masonry and poured concrete ones are usually best left to a mason.

What can I use instead of a retaining wall?

  • Reinforced Soil Slopes. Reinforced soil slopes are a quick and easy construction style that uses a geotextile, such as polyethylene or polypropylene, to lock existing soil into place to create a reinforced mass.
  • Natural Stone Walls.
  • Wooden Timbers.
  • Gabion Walls.
  • Soil Bioengineered Walls.

Can you put retaining wall on concrete?

Retaining walls can be constructed using a variety of materials, from poured concrete and large timbers to natural stones, even bricks.

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