Premanufactured rammed earth blocks are less expensive because the work has already been done, and they just need to be stacked onsite. Estimate the retaining wall cost given the price of the preferred block. All pricing information on this page is based on average industry costs, and is subject to variance for project-specific materials, labor rates, and requirements. Might not do well in freeze-thaw conditions without deep footings. Most homeowners find themselves spending between $3,183 and $8,659. These designs can increase retaining wall cost up to $30 to $40 per square foot. Natural stone retaining walls are very attractive, and stones can range in size from a few inches to several feet. Material Cost: £0; Space Required: 500mm; Cross Section Diagram; Reinforced Earth Slope. Raise planting beds behind the wall for faster root drainage. Wood walls often last many years, however they do tend to rot and degrade over time and will eventually need to be replaced. Make sure you have, or can get access to, a range of tools including a rake, shovel, spade, pick ax, bubble levels, hand tamper, rubber mallet, hammer and mason chisel, glue, stakes, and some twine. Once common factor is the amount of excavation needed for the project and the material that needs to be excavated. Poured concrete has become more popular for use in retaining walls as color and patterns have become more commonly used, making them look much better than a plain concrete wall. Simply fill out our rock retaining wall calculator below to give you an estimate on your project. Labor is a significant cost for any construction project, and that cost will vary depending on the size, scale, and complexity of the landscaping project. Cons – Coatings on block walls can crack in freeze-thaw cycles. Pros - A natural look in garden settings. Remember, hiring a professional will include material and labor costs. Get free estimates from contractors near you. Before you build a retaining wall, you’ll more than likely need to hire an engineer, due to the complexities that can arise from the local soil properties, pressure, and gravity. The true price of a retaining wall will depend on the final designed based on local site investigation information. Concrete retaining walls are of high quality, and retaining wall costs run from $15 to $20 per square foot. They are treated to prevent breakdown, but the chemicals used can seep into surrounding soil so they are not recommended for food gardens. Because of the bare-bones appearance of cinder block, the wall will still need some form of visual enhancement—with a stucco or veneer finish on the exposed surfaces. Performs well in a completely vertical installation. A retaining wall can also benefit from some type of waterproofing membrane to help minimise the build-up of hydrostatic pressure which is typically an average cost of £70 to cover 10m 2. Transportation and onsite placement can be costly due to their weight. Multiply the width and height of your retaining wall by 12″ to give the total cubic feet of backfill gravel that will need to be ordered. At the lower end of the scale, expect to pay from $250 per sq/m for treated timber up to $700 per sq/m for concrete Besser blocks. Think about what to do with the dirt that will be removed, and if it will be used to compact the earth behind the wall. Drainage and water flow control strategy required. Pros - Involves ramming earth into a form to give it structure and boosting it with internal rebar, wood, or even bamboo. Many homeowners are capable of completing the project as a DIY project. The cell structure is designed to facilitate drainage through wall openings so as to ease hydrostatic pressure behind the wall. That's why our stone veneer walls run from $190 to $250 per linear foot." Find how many concrete blocks are needed by entering the size of the wall and the size of the block. Retaining Wall Calculator. Cons - Will require maintenance to get the longest life out of it, since it is prone to damage from water and pests like termites. Under certain conditions, these are used instead of reinforced concrete as a cost measure, or because the conditions on site necessitate their use, or as an improvement to an existing installation. A new retaining wall usually costs $3,000 – $8,000. If hiring a Pro, the same retaining wall cost is about $2,800 or $28 per square foot. Wire casket might rust. On a scale of 1 to 5, the cost level is 3/5. The price per m2 will change from location to location and with the scale of the project. Constructed from readily available clay and shale, brick is very durable and drains well. These can be added to a strong core. Concrete gravity walls can be used for installations requiring a wall of up to 9 feet tall, and should be between 50 % –60 % the thickness of the wall height. Without the wall, the soil could erode or slide. Cons - Cinder block is laid in trenches and not secured into the ground. Concrete Retaining Wall Prices Concrete retaining wall prices start around $30 per square foot including materials and installation and can go as high as $45 to $50 per square foot depending on how much prep work is involved in building the forms. Their locking mechanisms sometimes employ the use of pins, giving the resulting wall more structural integrity and the ability to go higher. TerraFirm50 retaining panel (used in SlimWall system): retains up to 500mm, 2.5kPa surcharge live loads An easy and affordable installation. On average, a retaining wall costs $4,220. Can be built up to 4’ tall or 5’–6’ with treated railroad ties and/or reinforcing steel rods. The cost of retaining wall materials ranges from $3 to $40 per square foot. Without footings, you’re limited to a wall under 4’ tall. Charcoal Concrete Retaining Wall … To add a buffer for error, bad blocks, and any damage from accidents on site, it might be prudent to add another 10 % to the total number being ordered. Many different materials can be used to blend with any design and the cost of a retaining wall can vary. Get free custom quotes from qualified pros in your area. ft. to build a retaining wall. Consider the cost of these extra materials when estimating the cost of your wall project. Costs below are for wall material alone. Moisture may originate deep underground too, wicking up through the concrete footing. The cost of a retaining wall and other home repairs can vary considerably according to your location. Cinder block can be plastered or painted to improve the cosmetic appearance. Modular Or interlocking concrete blocks - $6–$9/sq. The Landscaping Element Every Gorgeous Yard Needs. Cubic Yards Calculator and Landscaping Estimator, Get retaining wall installation estimates, Landscaping Cost Calculators and Price Guides, Retaining Wall Calculator and Price Estimator. An average brick retaining wall that is 30 feet long and 4 feet high, without any built-in steps or extra reinforcements, is typically around $4,220. Get hassle-free estimates from local landscaping & lawn care professionals and find out how much your project will cost. There is a wide range of different possible solutions for a retaining wall, but below are the fundamental elements to build a 3-foot-tall retaining wall using blocks and tops and a gravel base, on top of which you will lay the blocks. Usually a wall above 4’ will require engineering. On a national average, most people will spend a minimum of £9,870 - for a 6 ft high retaining wall £10,564. Interlocking concrete blocks are beautiful and designed and structured specifically for use in retaining walls. If you live on a hilly property, or have different levels to your landscaping, a retaining wall 1 may be necessary to prevent soil erosion and to protect your landscaping. This type of retaining wall is much thicker and leverages its extreme weight. Are You Planning a Landscaping & Lawn Care Project? Receive quotes from multiple pros that meet your exact needs. For this example: On the rear of where the wall is going, cut 6” back from where the rear of the bricks will be to allow a barrier of ¾ inch rough rock drain gravel to facilitate drainage. Gabion stone walls are an attractive and functional gravity retaining wall system made from galvanised steel mesh filled with stone, brick or concrete. Removing rock and boulders will be more labor intensive than removing dirt for example. x 16 in. Time required: a couple days. Particular types of walls require a particular type of installation, with some needing an engineer’s help. Criblock is a type of gravity retaining wall that constructs cells from materials like plastic frames, precast concrete, or timber. Project difficulty: difficult. John D. Wagner, Engineering a Retaining Wall, Randy Jones Lawn & Landscape, Stone Retaining Wall Cost To Build, https://www.randyjoneslawncare.com/stone-retaining-wall-cost-to-build/. Over time gravity combined with enough rainfall and an inadequate drainage system could contribute to the failure of the wall and the collapse of the soil behind it. Looking for a Retaining Wall Builder near you? Pros – A unique look of a rock- or glass-filled cage. Pros - A popular choice for many designers. Starting from $1,950* per metre, installed (includes project management and GST) How much does a gabion retaining wall cost? The height of a wall can also affect the cost. Surface resistant to rot and pests. 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