Readers ask: How To Price A Retaining Wall?

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 do you calculate the square footage of a retaining wall?

Multiply the length and adjusted height measurement to determine the square footage of the retaining wall. Multiply the square footage number by 144 to find the size of the wall in square inches.

How much does a retaining wall cost per Metre?

A retaining wall will generally cost you between $137.50 and $250 per square metre, according to tradesperson listing directory ServiceSeeking.com.au.

What is the most cost effective retaining wall?

Treated pine tends to be the cheapest option at $250 per square metre, but it has its drawbacks too. In order of price, these are some retaining wall cost ideas for different materials: Treated pine and is the least expensive material.

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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.

How long do retaining walls last?

How long will my retaining wall last? For a permanent wall structure, the general lifespan is generally between 50 and 100 years. This does, however, depend on the conditions of the soil and groundwater at your site.

How do you calculate the height of a retaining wall?

Calculate the height

Look at the grade of the area you’re planning to work on and what the grade will be once you’ve finished. If the finished grade will be four feet lower than the existing grade, your retaining wall will need to be four feet high. If it is a six-foot difference, you will need a six-foot wall.

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.

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.

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Do I need a structural engineer for a retaining wall?

You don’t really need a structural engineers report to build a 1m high retaining wall. It just needs to be built using rebar in hollow concrete blocks that ties through to the footings and filled with concrete.

Who pays for retaining wall?

Regardless of which side of the boundary the wall is, the owner receiving the benefit of the wall is responsible for maintaining it. In example 4 below, owner B would be responsible for the wall even if it had been built with boundary position 2 (on the neighbour’s property).

How high can a retaining wall be without council approval?

For example, in New South Wales, you can only build your retaining wall up to 600mm from ground level without council approval while on the Gold Coast of Queensland, you need building approval for retaining walls 1 metre or more in height.

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 can I use instead of a retaining wall?

Reinforced soil slopes are the most cost-effective retaining wall alternatives. Often times you are using the soil that you already have on hand and do not need to bring in any additional.

  • Reinforced Soil Slopes.
  • Natural Stone Walls.
  • Wooden Timbers.
  • Gabion Walls.
  • Soil Bioengineered Walls.

What is the best retaining wall?

Concrete and Masonry Retaining Walls

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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.

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