FAQ: How To Pour A Concrete Retaining Wall?

How thick does a concrete retaining wall need to be?

Rules of thumb commonly used by designers to establish the geometry of the wall include (refer to diagram): Base width = 1/2 to 1/3 of the height of the wall. Base thickness = 1/8 of the height of the wall but not less than 12 inches. Stem thickness = 6 inches + ¼ inch for each foot of wall height.

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.

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.

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.

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Does a 2 foot retaining wall need drainage?

Although there are exceptions, most retaining walls require gravel backfill, soil compaction, pipe or toe drains, and weep holes. Together, these four features will provide adequate drainage for most designs. Only a few types of walls will not require all of them.

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.

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.)

What is the best base for a retaining wall?

Due to soil erosion, your retaining wall should be built on a solid foundation made from gravel.

  • Choose gravel that has stones sized between 1/2-inch and 3/4-inch.
  • Fill the trench with a 2- to 3-inch layer of gravel.
  • Use a rake to ensure the stones are evenly distributed.

How much does a 4 foot retaining wall cost?

Retaining Wall Cost per Square Foot

Size Average cost
25 x 3-feet (75 sq.ft.) $3,750
25 x 4feet (100 sq.ft.) $5,000
40 x 4feet (160 sq.ft.) $8,000
60 x 4feet (240 sq.ft.) $12,000

How much does a 6 foot retaining wall cost?

The average cost of building a retaining wall is $5,636. Most homeowners find themselves spending between $3,229 and $8,670. The cost of retaining wall materials ranges from $3 to $40 per square foot. Wall block prices fall between $10 and $15 per square foot, while precase, poured concrete runs $20 to $25.

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Are concrete walls cheaper than brick?

Cost: Brickwork is certainly cheaper than the normal concrete. A cubic meter of brick work in CM (1:6 )consumes about 2 bags of cement, 0.15 Brass of sand and 500 bricks. the concrete [ M 20 ] on the other hand needs, 7.87 bags of cement, 0.15 brass of sand and 0.30 brass of aggregate.

Are poured concrete walls expensive?

Poured Concrete Walls Cost



A poured concrete wall averages $6,396 for homeowners around the country, with most people paying between $2,861 and $10,723. You might pay anywhere from $932 to $25,000 depending on the size, materials, design and overall labor.

Do poured concrete walls leak?

POURED CONCRETE WALLS typically leak along the joint between the floor and the wall. High hydrostatic pressure outside the foundation can cause water to seep through solid concrete walls. But the mortar joints between individual concrete blocks also have the potential to leak.

How long does a concrete block foundation last?

Concrete and poured-block footings and foundations will last a lifetime, assuming they were properly built. Waterproofing with bituminous coating lasts 10 years, but if it cracks, it is immediately damaged.

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