How Much Does a Retaining Wall Cost to Build? (2022)

Photo: istockphoto.com

  • Typical Range: $3,194 to $8,770
  • National Average: $5,700

What is a retaining wall? Retaining walls can prevent soil erosion, hold a foundation in place, beautify a yard, divert water, and facilitate drainage. They can be made of various materials and built to any size, length, and height. But what does a retaining wall cost? The cost to build a retaining wall depends on several factors, but according to Angi and HomeAdvisor, the price ranges from $3,194 to $8,770, with the national average at $5,700.

The final price depends on the retaining wall materials, the size of the wall, engineering, location, reinforcement, and decorative finishes. Since every retaining wall project is unique depending on the size and materials, labor costs can also fluctuate. Depending on materials, labor can run between $50 and $75 per hour or $10 to $50 per square foot. Interlocking retaining wall blocks results in faster construction than using other materials, like hand-stacked stone.

Before searching online for “inexpensive retaining wall ideas” or “how to build a retaining wall,” keep reading for important information regarding factors in calculating retaining wall cost, types of material, and essential questions about retaining wall installation.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

How Much Does a Retaining Wall Cost to Build? (2)

+

How Much Does a Retaining Wall Cost to Build? (3)

Factors in Calculating Retaining Wall Cost

Photo: istockphoto.com

Several factors can affect retaining wall costs. Prices can be different from the national average due to the material, location, size, height, accessibility of the area, labor costs, permit fees, soil, site preparation, material delivery fees, waterproofing, geographic location, and the time of year.

Materials

The type of material will impact labor prices and the project’s overall cost. The type of material used to build a retaining wall depends on personal preference, although the required size and height of the wall can also dictate the material. Some homeowners prefer to mix and match different materials to create visual interest while reinforcing the function of the structure. Materials include concrete, gabion and stone, brick, wood or timber, railroad tie, steel, I-beam, and rammed earth. Each material has its advantages, benefits, and pricing per linear foot.

Wall Location

The location and the amount of reinforcement are significant factors that impact retaining wall costs. Since no two retaining walls are the same, it’s important to recognize the function of the wall and carefully understand how much force it needs to withstand. Here are some common locations for retaining walls and their price per linear foot.

Advertisement

  • Driveway: $50 to $150 per linear foot
  • Landscape: $30 to $150 per linear foot
  • Shoreline: $125 to $200 per linear foot
  • Swimming pool: $20 to $100 per linear foot
  • Backyard: $30 to $150 per linear foot
  • Front yard: $30 to $200 per linear foot
  • Slope: $40 to $200 per linear foot

Size and Height

When calculating retaining wall costs, it’s essential to consider the wall’s length, height, and width. Material and labor costs are dependent on the overall size. Keep in mind that the larger the retaining wall, the stronger a foundation it will need.

Accessibility

Easier access to the location where the retaining wall will be built will allow large earthmoving machines to do most of the work. Expect to pay more for manual labor in difficult-to-access areas.

Labor and Permits

Labor costs run from $50 to $75 per hour or $10 to $50 per square foot. If the location where the retaining wall is being built is difficult to access, the area will require scaffolding and reinforcement. Existing gates and fences may need to be removed as well. In a situation like this, prepare to pay the higher end of the labor estimate. Walls over 4 feet tall and walls that need to hold back a significant amount of weight will need to be designed by a structural engineer. This process will cost more since it will take more time and effort to design and build the wall.

In many areas, a permit is required if the retaining wall is over 3 or 4 feet tall. Homeowners should check their local regulations regarding retaining walls before starting the project. Permits usually cost between $50 to $450.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

How Much Does a Retaining Wall Cost to Build? (5)

+

How Much Does a Retaining Wall Cost to Build? (6)

(Video) How much does a Retaining wall COST?

Type of Drainage

Since the function of a retaining wall is to stop erosion and facilitate drainage, the retaining wall’s design is important. Drainage can be designed into the wall by using drainage pipes, gravel and weep holes, or a criblock design. If there is a retaining wall on the property but it doesn’t drain, it may need to be rebuilt. Sometimes a contractor can dig out the area behind the wall and place gravel at the base to ensure drainage, but this is not always possible. If it’s not, a contractor may need to take out the wall and rebuild it. Excavating to remedy drainage issues can cost $60 to $70 per linear foot. The cost to demolish the existing wall ranges from $20 to $30 per square foot, not including adding drainage or building the new wall.

Advertisement

Type of Soil

The soil type plays a significant factor in deciding the type of retaining wall that will work the best for the area. Some retaining walls work better in certain types of soil than others. The soil may need to be compacted or modified to drain and withstand the wall’s weight. Sandy soils are best for drainage, and clay soil will not be able to support a wall’s weight. Getting a geotechnical report on the soil will show the chemical properties, groundwater conditions, and any issues with the soil.

Site Preparation

Before a retaining wall can be built, the site needs to be excavated and leveled. This involves clearing the land and compacting the soil so the wall will be level. The cost of clearing land can run between $500 and $1,000, depending on the location, condition of the land, and size of the construction site. Clearing difficult terrain can run from $1,500 to $3,000 per acre, tree removal can cost from $300 to $700 per tree, and land grading ranges from $0.40 to $2 per square foot.

A layer of gravel or sand can be used to ensure proper drainage, or a contractor can install drainage pipes or weep holes every 6 to 8 feet. Other drainage options include installing filter fabric or a footing drain. Keep in mind that some of these options work better in certain conditions, and not every option will be used when installing a retaining wall.

Material Delivery

Some contractors may charge an extra delivery fee, depending on the material. The common price is usually between $30 and $100 per truckload for brick, stone, or concrete retaining wall blocks.

Waterproofing

To ensure a retaining wall lasts decades, it needs to be waterproofed. This typically costs between $2 and $10 per square foot. The price is usually included with the overall cost of the project, but it’s always good to ask the contractor about waterproofing. If the retaining wall isn’t waterproofed, water can seep into the wall and damage its structural integrity.

Advertisement

Geographic Location

Certain types of retaining walls work better in some geographic locations than others. Steel retaining walls are not used in coastal areas since the material can rust. Railroad ties are banned for use as retaining wall material in some areas. Permit, construction, and labor fees are all different in each state and city. It’s important to get quotes from contractors in your area for accurate pricing.

Photo: istockphoto.com

Additional Costs and Considerations

When budgeting for retaining wall costs, it’s beneficial to know about any additional costs and considerations. These can include additional services, reinforcements, additional dirt fill, and customizations.

Time of Year

While retaining walls can be installed at any time of the year, it may cost more for construction and labor costs to dig below the frost line when the ground is frozen.

Additional Services

Longer retaining walls and those over 4 feet high will typically need a structural engineer to design them. Hiring a structural engineer, designer, or professional landscape architect will add to the project’s overall price.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

Find a Pro

(Video) How to do Retaining Wall Bids, Estimates and Proposals

How Much Does a Retaining Wall Cost to Build? (8)

+

How Much Does a Retaining Wall Cost to Build? (9)

Reinforcements

A concrete retaining wall typically needs reinforcement. Lateral support is usually inserted with rebar, or reinforcing bars. Rebar can be inserted horizontally and vertically, depending on the needed reinforcement. Additional reinforcement is commonly used in retaining walls that are taller than 4 feet. The cost to install rebar runs from $0.80 to $1.60 per square foot. Taller and longer walls need deep footings with different fill materials for additional reinforcement. Structural engineers will design the wall to prevent it from collapsing.

Additional Dirt Fill

If additional fill dirt is needed, it can cost between $150 and $600 per truckload, or $15 to $50 per yard.

Customizations

Retaining walls can be easily customized to complement the look of the surroundings or enhance the area for entertaining. Retaining wall add-ons include:

  • Brick facade or veneer: $5 to $30 per square foot
  • Concrete footing: $30 to $100 per linear foot
  • Stone veneer: $35 to $50 per square foot
  • Painted mural: $800 to $1,900
  • Fencing: $1,700 to $4,000
  • Patio: $1,800 to $5,200
  • Outdoor lighting: $2,000 to $6,000
  • Stamped concrete: $2,700 to $6,500

Retaining Wall Material Types

The retaining wall material can be the most expensive part of the project. It’s important to know the pricing of stone, wood, steel, concrete, and other materials to keep your budget on track.

Advertisement

Concrete

Concrete retaining walls can cost between $10 and $100 per square face foot. The main types of concrete walls are cement, shotcrete, poured concrete, and precast concrete. Cement is not as hard as concrete, but it’s a budget-friendly option. Shotcrete may be one of the most affordable concrete retaining walls, and it’s a quicker installation than cast-in-place concrete. Poured concrete and precast concrete are typically the most expensive options. Concrete blocks are hollow and will need to be reinforced with steel.

Gabion and Stone

Gabion and stone retaining walls can range from $5 to $100 per square foot. Gabion walls are made from wire cages that are filled with rocks. Since they don’t need concrete footing, they’re easy to install and can stabilize the soil while handling landscape shifts.

Stacked stones can be used for taller, tiered, and decorative walls. Dry-stacked stone retaining walls use gravity to keep the wall together. These are typically cheaper to install than wet-laid stone walls that rely on mortar. Natural stone walls cost between $25 and $75 per square foot. Limestone is a more expensive option and can cost between $50 and $100 per square foot.

Brick

The cost of installing a brick retaining wall is between $10 and $45 per square foot. This material acts as a veneer on the wall. One layer of brick is affixed to a retaining wall made of blocks or poured concrete. Brick can be used for a tiered or taller wall to create a classic look.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

How Much Does a Retaining Wall Cost to Build? (10)

+

How Much Does a Retaining Wall Cost to Build? (11)

Wood or Timber

Wood is a popular and budget-friendly material and costs between $15 and $30 per square foot. Timber retaining walls are typically used in gardens or to reshape sloped areas. Wood retaining wall drainage must be installed correctly since the material is prone to water damage. Proper waterproofing and drainage will allow a wooden retaining wall to last for decades.

Railroad Tie

Commonly seen in older homes, railroad tie retaining walls usually cost between $25 and $30 per square foot. Today, this material is less common because railroad ties can be coated in toxic creosote. Be sure to double-check if railroad ties are an approved material for retaining walls in your area.

Steel

Steel retaining walls run $40 to $60 per square foot. Customers in coastal areas typically opt for galvanized steel since it lasts longer. Corten steel is the strongest steel option that withstands rust, but the price increases to $75 to $125 per square foot for this material. Homeowners can save 25 to 50 percent of the cost by using a concrete or wood wall that’s faced with a sheet of Corten steel.

Advertisement

I-Beam

I-beam retaining walls range from $40 to $90 per square foot. As one of the most expensive options, I-beam walls, also called soldier pile, are made with vertical I-beams placed into holes and secured with concrete. Precast concrete panels or wooden slats are positioned between the beams to create the wall. These types of walls are commonly used to prevent soil erosion or as property line markers.

(Video) How to Estimate Materials for a Block Retaining Wall

Rammed Earth

Rammed earth retaining walls cost between $20 and $30 per square foot. These walls are created by mixing dirt with a binder to create a sound structure. The most common binder is concrete, which enhances the wall’s strength. Since fewer materials are required for this, it’s a more environmentally friendly option.

Photo: istockphoto.com

Do I Need a Retaining Wall?

Retaining walls are used for many reasons, including soil erosion prevention, landscape maintenance, and visual interest. If your property has issues with erosion or water drainage, a retaining wall may be needed. Here are some other reasons a property may need a retaining wall.

Erosion Prevention

Retaining walls are useful for preventing soil erosion and keeping sloping land in good condition. For yards with septic tanks, retaining walls are used to build up the area and create a visual barrier to the other parts of the property.

Water Barrier

If a property is having issues with water drainage or it’s near a body of water that needs to be protected, a retaining wall can help. Retaining walls near a shoreline prevent erosion and hold back the water. A wall is also helpful if stormwater pools around a structure’s foundation.

Slope Stabilization

Sloping land typically needs a retaining wall to prevent soil erosion. Building a retaining wall in a sloping area will require regrading the land. It’s usually more difficult to construct a wall on a slope since it’s an unstable area.

Advertisement

Existing Retaining Wall Issues

If an existing retaining wall on the property needs replacement, the cost will be the same as building a new one, plus the added charges to demolish the old one. The area will also need to be prepped and regraded. A retaining wall fails due to its age, improper construction, or inadequate reinforcement.

Benefits of Installing a Retaining Wall

Building a retaining wall has many advantages, such as preventing landslides, stabilizing hilly landscapes, providing flood control, adding functional space to a yard, and increasing the overall value of a home.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

How Much Does a Retaining Wall Cost to Build? (13)

+

How Much Does a Retaining Wall Cost to Build? (14)

Yard Expansion

While hilly and sloping land may be what draws a homeowner to a property, it’s impractical to use on a daily basis. By installing a retaining wall or series of walls, the landscape can be transformed into a flat area that can be used as a garden or patio.

Curb Appeal

Depending on the material used for the retaining wall, it can beautifully contrast with the surrounding natural landscape. Walls can double as seating areas and function as an additional structural feature outside the home. Building a retaining wall can add up to 15 percent to the value of a home and a 100- to 200-percent return on investment.

Retaining Wall Installation: DIY vs. Hiring a Professional

Shorter, smaller retaining walls made from dry stacked stone or concrete blocks can make a good DIY project. But since taller walls need reinforcement, it’s important to not build a retaining wall taller than 3 or 4 feet on your own. And while shorter walls are easier to build, it can be difficult to ensure they’re structurally sound without the proper knowledge and experience.

If a wall is built incorrectly, the wall can collapse and damage the surrounding landscape. If a retaining wall needs to be rebuilt, the additional costs to demolish and haul away the material will quickly add on to the price of rebuilding. Keep in mind that some locations require a structural engineer to design a retaining wall and a professional to build it. For these reasons, it’s generally a good idea to hire a professional to build a retaining wall.

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

(Video) Cost of Retaining Wall with 2000lb BLOCKS

How Much Does a Retaining Wall Cost to Build? (15)

+

How Much Does a Retaining Wall Cost to Build? (16)

How to Save Money on a Retaining Wall

Budgeting for retaining wall costs can be challenging, and the additional fees associated with the job can quickly add up. Homeowners may be tempted to search for inexpensive, cheap retaining wall ideas, but there are other ways to save without compromising what you want.

  • Get multiple quotes. Get at least three quotes from reputable contractors in your area.
  • Use recycled materials. Some contractors offer recycled concrete from other locations. If you are demolishing an existing retaining wall on your property, see if any of that material can be reused.
  • Combine projects. If you’re planning multiple backyard improvements, schedule the other projects with the same company to see if you qualify for discounts.
  • Stick to your budget. While opting for the most expensive materials is tempting, search for affordable materials that complement both function and form.
  • Negotiate. Some companies have some wiggle room with their installation costs to help meet your budget.

Photo: istockphoto.com

Questions to Ask About Retaining Wall Installation

Asking the right questions about retaining wall costs can minimize miscommunication and save money. Here are some questions to ask a retaining wall installation professional.

  • Are you licensed and insured?
  • Will you provide references?
  • Do you have examples of your work?
  • Do we need a building permit?
  • How can you help with water drainage issues?
  • Will you use landscape fabric?
  • What is the best material for this location?
  • How long will it take to install the retaining wall?
  • Who will build the wall?
  • Who should I contact if there are problems?
  • Do you guarantee your work?

Want to build a retaining wall?

A pro can do it for you. Get free, no-commitment project estimates from experts near you.

How Much Does a Retaining Wall Cost to Build? (18)

+

How Much Does a Retaining Wall Cost to Build? (19)

FAQs

Staying within your budget for retaining wall costs can be daunting. Here are some frequently asked questions about retaining wall costs to help guide you in your decisions.

Advertisement

Q. What’s the easiest retaining wall to build?

Dry-stacking masonry blocks no taller than 3 feet is the easiest way to build a retaining wall for the average DIYer. Those with masonry experience should have no problem using mortar and building a wall with other materials. Those with no DIY experience should contact a professional to design and install a retaining wall.

Q. Do retaining walls add value?

Absolutely. A retaining wall can add up to 15 percent to a home’s value and an average of 100- to 200-percent return on investment.

Q. How long do retaining walls last?

Depending on the wall material, the quality of the soil, the groundwater, and proper maintenance, a retaining wall can last between 25 to 100 years.

Sources: Angi, HomeAdvisor, Fixr, HomeGuide

FAQs

What is the cheapest retaining wall to build? ›

The cheapest type of retaining wall is poured concrete. Prices start at $4.30 per square foot for poured concrete, $5.65 for interlocking concrete block, $6.15 for pressure-treated pine, and about $11 for stone. Installation or supplies, such as drainage stone or filter fabric, are not included.

How much does it cost to build a retaining garden wall? ›

If that's you, then you'll be interested to know that the average cost of building a stone garden wall is ranges from £240 - £520 for a 1m x 4m wall, £830 - £1540, for a 1m x 8m wall, and £1140 - £2,160 for a 1m x 12m wall.

How deep should foundations be for a retaining wall? ›

Retaining wall foundation depth should be 300mm if the soil is firm and well-drained, or 450mm if less firm and unstable. Dig out foundation [base on which wall stands] which must be twice the width of the wall.

How much does it cost to put up a wall? ›

Framing costs between $7 and $16 per square foot. Building a new wall will cost $1,906 on average, with a typical range of $971 and $2,962. However, this cost can reach as high as $8,000, depending on the project's complexity.

Why are retaining walls so expensive? ›

The greatest cost of retaining wall block is shipping since it is so heavy. Larger size decorative retaining wall blocks are more expensive than smaller blocks. Large blocks are capable of holding back more soil and can be built higher. Not only that, their faces can be textured for decorative purposes.

How long do retaining walls last? ›

How Long Should A Retaining Wall Last? Stone retaining walls should last somewhere between 40 and 100 years or more. Wood retaining walls last around 40 years. Stone and concrete retaining walls last between 50 and 100 years.

How do you build a cheap retaining wall? ›

The cheapest way to build a retaining wall is to DIY it. And the most DIY-friendly way is to use commercially available concrete blocks, sold in Home Depot or Lowe's. They commonly come as self-aligning and trapezoidal in shape which makes it easier to form concaves, convexes, or straight walls.

Does a retaining wall need building regulations? ›

Independent, freestanding retaining walls may not require building regulation approval; however, any structures must be structurally sound and well maintained.

How much does it cost to build a retaining wall step by step? ›

For a basic wall you can expect to pay between $30 and $60 per square foot. The cost of the retaining wall depends on the material chosen, the total height of the wall and the length of the wall. Wooden retaining walls start at $15 per square foot, while concrete retaining walls start at $20 per square foot.

Do I need a drain pipe behind retaining wall? ›

A drainage pipe might be needed if: The retaining wall is at least four feet high or taller. Clay or other poor draining soils are behind the wall. There are buried water sources within 50 feet of the retaining wall location.

WHY DO retaining walls fail? ›

The main cause of retaining wall failure is poor drainage. Without proper drainage, hydrostatic pressure builds up behind the retaining wall. Saturated soil is substantially heavier than dry soil, and the retaining wall may not be designed to handle such a load.

What is the best base for retaining wall? ›

The base material should only consist of angular, sharp-edged particles such as ¾-inch minus gravel. The various-sized crushed gravel with the fines helps ensure the right amount of compaction. Round rocks, such as pea gravel, roll and dislodge under pressure resulting in failure of the retaining wall.

How much does it cost to build a wall per square foot? ›

The average cost of framing an interior wall can be anywhere from $7 to $16 per square foot, according to HomeAdvisor.

Do you need planning permission to put up a stud wall? ›

Do Stud Walls Need Building Regulations Approval? Generally, you do not need building regulations approval to construct a non-load-bearing stud partition wall. If you are creating a wall that will support the building, you'll likely need approval.

How much does it cost to build a concrete wall? ›

Building a concrete wall costs $7,500 to $14,000 on average. A poured concrete wall costs $90 to $280 per linear foot. A precast concrete wall costs $150 to $320 per linear foot. The average cost of a poured concrete foundation or basement walls is $10,000 to $37,500.

Do retaining walls add value? ›

A retaining wall can add up to 15 percent to a home's value and an average of 100- to 200-percent return on investment.

How long does it take to build a retaining wall? ›

Plan on about three days to build a wall 4 feet tall by 15 feet long. Cost: $10 to $15 per square face foot installed, depending on your region—higher if extensive excavation, soil prep, and backfilling are needed.

Can you build a retaining wall yourself? ›

Choose a DIY-friendly building material. Retaining walls can be made from wood, bricks, natural stones or concrete blocks. For DIYers, it's best to use concrete retaining wall blocks, which can be interlocking and are heavy enough to stay in place without cement or other adhesive.

Do all retaining walls need footings? ›

Every retaining wall needs a footing, but what type depends on the design, material, height and weight of the wall. Large masonry retaining walls built out of rigid materials like concrete, cinder blocks, cement or brick need a concrete footing. Solid masonry walls are stiff and unable to flex because they'll crack.

Do retaining walls need rebar? ›

Retaining walls must be stronger than freestanding walls. Insert rebar in the footing when you pour it; this should be done at every three blocks or at intervals specified by your local codes.

What material goes behind a retaining wall? ›

Backfill refers to the dirt behind the wall. In order to provide proper drainage, at least 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behind the wall.

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.

What can I use instead of a retaining wall? ›

Using wooden timbers could be a great alternative to retaining walls. They are quite popular in building garden beds, raising flowers, and sloppy hillsides. The wooden timbers go pretty well with the natural vibe of the landscape design.

How thick should a retaining wall be? ›

One of the things you must get right is the thickness of the wall. It should be at least 215mm thick and bonded or made of two separate brick skins tied together. This should be enough in most cases with minimal water pressure or where the ground level difference is less than a metre.

Do I need a structural engineer for a garden retaining wall? ›

Do I Need a Structural Engineer to Design a Retaining Wall? If your wall is higher than one metre or the slope is greater than 3:1, your planning department is likely to insist the retaining wall is designed by a structural engineer. This is because, to be safe, the wall will need to be a certain strength.

Does a 2 foot retaining wall need drainage? ›

Every retaining wall should include drainage stone behind the wall. Though it is a good idea to install a drainage pipe on all walls, there are certain situations where a perforated drain pipe is absolutely necessary.

How do you install a retaining wall? ›

How to Build a Retaining Wall (Step-by-Step) - YouTube

Can I use wood for a retaining wall? ›

Wood can be a budget friendly solution for a DIY retaining wall. However, wood is subject to fungal rot, termites, and water damage. When following all of the best recommendations, a wood retaining wall can last up to 40 years. Without proper techniques, a wood retaining wall can fail in as soon as 5 years.

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.

What can I use instead of a retaining wall? ›

Using wooden timbers could be a great alternative to retaining walls. They are quite popular in building garden beds, raising flowers, and sloppy hillsides. The wooden timbers go pretty well with the natural vibe of the landscape design.

Are poured concrete walls cheaper than block? ›

Usually, the cost of construction varies from place to place. But as a matter of fact, poured walls cost about 20% less than the block foundation walls.

Do you need drainage behind a retaining wall? ›

Retaining wall drainage is critical. It ensures water does not collect behind the wall, causing it to fail. A quality drainage system collects and redirects rainwater away from the wall. It decreases pressure on the soil around the foundation and within the wall itself, reducing erosion and settlement.

How do I build a cheap retaining wall? ›

The cheapest way to build a retaining wall is to DIY it. And the most DIY-friendly way is to use commercially available concrete blocks, sold in Home Depot or Lowe's. They commonly come as self-aligning and trapezoidal in shape which makes it easier to form concaves, convexes, or straight walls.

How thick should a retaining wall be? ›

One of the things you must get right is the thickness of the wall. It should be at least 215mm thick and bonded or made of two separate brick skins tied together. This should be enough in most cases with minimal water pressure or where the ground level difference is less than a metre.

Can you build a retaining wall yourself? ›

Choose a DIY-friendly building material. Retaining walls can be made from wood, bricks, natural stones or concrete blocks. For DIYers, it's best to use concrete retaining wall blocks, which can be interlocking and are heavy enough to stay in place without cement or other adhesive.

What slope do you need a retaining wall? ›

The maximum slope for the soil you can safely go without a retaining wall is 35 degrees, especially if the soil is granular. If the angle is steeper, you will need a retaining wall to keep everything in place.

Do I really need a retaining wall? ›

You need a way to control downhill erosion. If mountains of erosion materials are clogging important areas on your property, adding a retaining wall is a wonderful idea. Retaining walls minimize erosion by decreasing the angle of a slope and holding back soil.

What is the longest lasting 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.

What material goes behind a retaining wall? ›

Backfill refers to the dirt behind the wall. In order to provide proper drainage, at least 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behind the wall.

Does a retaining wall need building regulations? ›

Independent, freestanding retaining walls may not require building regulation approval; however, any structures must be structurally sound and well maintained.

Does a block foundation need rebar? ›

Do you need rebar? Yes. Concrete and masonry do not withstand tension. Tension is absorbed by reinforcing.

Which is stronger cinder block or concrete block? ›

Concrete and cinder blocks are produced with open cells that can accept metal reinforcing or additional concrete for higher resistance. Concrete blocks are far stronger than cinder blocks. Several building codes explicitly prohibit the use of cinder blocks in building and construction projects.

How do you build a foundation for a retaining wall? ›

Retaining Wall Foundation - YouTube

Videos

1. 2022 Retaining Wall Costs and Tips
(NAT For Island Living)
2. $28,000 Belgard Anchor Diamond Retaining Wall 💎 Plus: Backyard Renovation (Atlanta, GA)
(Sarros Landscaping)
3. How Much Do Retaining Wall Repairs Cost?
(Dalinghaus Construction, Inc)
4. The best and most economical retaining wall system / by The Solutioneers
(This Is Australia)
5. How to charge for Landscaping, Retaining walls, Patios and Outdoor Construction
(Stanley "Dirt Monkey" Genadek)
6. Retaining Walls and Engineering
(How to Build Your Own Home)

Top Articles

Latest Posts

Article information

Author: Zonia Mosciski DO

Last Updated: 10/02/2022

Views: 5860

Rating: 4 / 5 (71 voted)

Reviews: 86% of readers found this page helpful

Author information

Name: Zonia Mosciski DO

Birthday: 1996-05-16

Address: Suite 228 919 Deana Ford, Lake Meridithberg, NE 60017-4257

Phone: +2613987384138

Job: Chief Retail Officer

Hobby: Tai chi, Dowsing, Poi, Letterboxing, Watching movies, Video gaming, Singing

Introduction: My name is Zonia Mosciski DO, I am a enchanting, joyous, lovely, successful, hilarious, tender, outstanding person who loves writing and wants to share my knowledge and understanding with you.