Build a concrete block retaining wall

Can cinder blocks be used for a retaining wall?

A cinder block retaining wall is only as straight and solid as the base it’s built on. … tall wall, excavate a trench deep enough to accommodate 4 to 6 in. of compacted base, 1 in. of leveling sand and half the height of the first course of blocks.

How much does it cost to build a cinder block retaining wall?

A cinder block wall costs between $10 to $15 per square foot for materials and is a great option if you’re looking to build curves into your design without extending your budget. It’s affordable, versatile and can be installed quickly and easily.

What blocks are best for retaining wall?

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 is the cheapest type of retaining wall?

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?

While retaining walls of this type are relatively inexpensive, they can be difficult to repair or remove. 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.

Should you fill cinder blocks with concrete?

Whenever you are working with cinder block, you can strengthen them significantly by filling them with concrete. Cinder blocks are less expensive to work with than poured concrete in home construction projects, but they are not as strong.

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How do you estimate a cinder block wall?

Once you have the wall measurements, calculate the square footage by multiplying the width times the height.

  1. wall sq. ft. = width × height.
  2. block sq. ft. = (16 × 8) ÷ 144 = . 89 sq. ft.
  3. blocks = wall sq. ft. ÷ block sq. ft.

How thick does a concrete retaining wall need to be?

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.

What is the strongest type of retaining wall?

Concrete and Masonry Retaining Walls

Poured concrete is the strongest and most durable choice for retaining walls. It may also be carved and formed to look like mortared stone depending on your taste.

How deep should a footing be for a retaining wall?

The general rule of thumb is to bury about one-eighth of the height of the wall. For example, if your wall will be three feet (36 inches) tall, the first course of blocks should start five inches below soil level. The gravel base should start three inches below this.

What slope requires a retaining wall?

A few things to keep in mind are: What is the slope? If the slope is greater than a 3:1, consult with an engineer. If the slope is over 2:1, it will require structures or special stabilization techniques.

Do I need drainage behind retaining wall?

Drainage. Third, since most retaining walls are impervious, which means water cannot pass through the wall itself, efficient drainage is crucial. When drainage goes unaddressed hydrostatic pressure will build up behind the wall and cause damage such as bulging or cracking.

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What can I use instead of a retaining wall?

An alternative to retaining walls are typically metal mesh gabion baskets filled with stones. These present different options for introducing creative elements to your garden and landscaping. Garden walls with stone embankment – plantable. This is a great combination of design and functionality.

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