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Terraforce Design Guide 2022


New Terraforce Design GuidePlease register here to access the two-part guide, “Section 1 Gravity Retaining Walls”, and “Section 2 Reinforced Soil Retaining Structures”, respectively. Should you have any questions contact us [email protected].


S standard block L 12 Terraforce block 4x4 Multi Step block Terracrete hard lawn paver Terrafix erosion control block

TERRAFORCE is a well-known and award-winning Cape Town-based company that offers interlocking concrete blocks (retaining wall blocks) for environmentally friendly landscape retaining walls and erosion control. Member of the Concrete Manufacturers Association (CMA) and a Level Four BBBEE Contributor.

Terraforce pioneered the hollow, reversible interlocking concrete retaining wall block that is unmatched in its versatility, both in application and elevation. Suitable for commercial and residential landscape retaining walls, small or large.

The wide range of plantable retaining blocks is tailored to create environmentally friendly domestic or industrial installations and to support sustainable development in soil stabilisation. The retaining walls can range from light gravity retaining walls, to geogrid reinforced earth-retaining or heavy gravity, double skin walls.

Terraforce retaining wall blocks adhere to local and international standards having undergone extensive laboratory testing – based on SANS 207, BS 8006 and ASTM-D6916-18 – by professional accreditation agencies over the last 4 decades. In addition, licensed manufacturers must adhere to strict minimum specification and regular compressive strength tests as set out by Terraforce Head office, ensuring that the end user is supplied a quality product.

Maxiwall Design Software for Terraforce Walls

Maxiwall Pro upgrade:


We are happy to announce that Maxiwall Pro now includes important upgrades to ensure our users continue to optimize their workflow and remain in compliance with the most recent Design Standards.


  1. New AASHTO 2020 Simplified Design Methodology.  The new AASHTO 2020 Simplified Design methodology was recently released in the United States and represents the most up to date LRFD Methodology for MSE Walls.  Changes compared to previous versions include the use of the Coulomb Earth Pressure Theory which allows the inclusion of interface friction to reduce applied loads, and the application of Strip and Point Loading behind the Wall.
  2. Plan View Import.  The New Maxiwall allows users to import the Grading and Plan information of the Wall directly from AutoCAD using the Awall2 CAD Tool.  More information about this Tool can be found at www.ctiware.com/awall.  For those of you who do not use AutoCAD, the Awall Web Tool can be used in a similar way.  This can be found at: http://www.ctiware.com/awallweb/awallweb.php
  3. New Graphics interface.  A completely overhauled graphics interface provides clearer, more precise diagrams and images, as well as accommodating smaller screens such as laptops.

Maxiwall Pro Click here to access the software!


Please note, this is not a turnkey solution, it is essential to familiarise yourself with the step by step “how to” offered by the following tutorials: www.ctiware.com/tutorials

DESIGN TABLE CREATOR

If you need quick calculations for the initial stages of your site, please consult our Design table creator for single skin Terraforce retaining block walls. Use this interactive excel sheet to work out the design values – number of blocks, wall height and recommended set back – for most Terraforce retaining blocks. 


Download the Excel Design Sheet here:


Once the Excel Sheet has downloaded, double click on the highlighted cell “L12”, enter your block size and press enter.


https://www.terraforce.com/instruction_guides/TERRAFORCE TABLE CREATOR

Check with your local licensed manufacturer which blocks he can supply.

Possible block sizes include:  S10/L13/L18/L22/L11/L12/L15/L15IT/L16/L20/Lite
FIND YOUR CLOSEST SUPPLIER

>>  Free design software, Maxiwall Pro 

>>  Become licensee for Terraforce concrete wall blocks

>>  Terraforce recommended installers in South Africa

>>  Download our Terraforce presentation or wall finishes presentation or product catalogue

>>  Winners:  CMA Awards over the years

>>  Download technical documents & case studies

>>  Frequently asked questions: Terraforce Q&A

Please note: Most Terraforce Licensees use recycled concrete and clay bricks in the manufacture of Terraforce products.

Also note: Terraforce suppliers stock their own selection/sizes of Terraforce concrete retaining blocks, this means the full range of products IS NOT sold at every outlet.

Watch: Stunning Terraforce rock face walls , Western Australia



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Latest News

September 12th, 2022  |  Published in - General News, - Storm Water Control

Terraforce delves into Permeable Interlocking Concrete Pavers (PICP) systems early on

The trend to counter the exponential growth of sealed trafficable surfaces in urban areas started to take root around 1980, possibly even a few years earlier. Research on that subject was conducted by R. Masters and M. Singer 1982, Berlin Waterworks 1984, S.Borgwardt 1993, B. Shackel 1996 and many others. Read more »

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July 27th, 2022  |  Published in - Awards

Beautifully curved Terraforce block wall, Salamanca Hospital, Spain

We are proud to announce that two of our submissions to the Concrete Manufacturers Association Awards for Excellence competition – which was presented in a new jacket, in the form of a digital event – won category awards. Read more »

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July 20th, 2022  |  Published in - Designs & Specifications, - General News

Terraforce Design Guide 2022

Access to the new Design Guide is now open!

We apologise for the wait due to technical issues. Please click on the link here: http://designguide.terraforce.com/register/ to view the guides online or to download your free copy, pending agreement to our terms and conditions.

Read more »

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July 7th, 2022  |  Published in - Stairways & Seating & Ramps

Seating for school by Terraforce

Early 2022, Durbanville Preparatory School elected to upgrade its sports facilities by reorganizing one large field on a slope into a sports facility with two new Astro turfs and two grassed fields which are terraced on different slope levels. Read more »

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June 10th, 2022  |  Published in - General News, - Installation Guidelines, Details

The Terraforce retaining system offers a series of hollow core concrete blocks which are lightweight for easy delivery, handling, and installation, yet heavy in mass when filled with soil, gravel, or concrete. Read more »

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April 6th, 2022  |  Published in - Designs & Specifications, - Installation Guidelines

We are proud to announce: Our new design guide has been completed!

Originally scheduled to have been launched, before Covid lockdown measures put a spanner in the works. Although partially based on our original 1992 Design Manual, the new extended version involved the participation of professionals in three countries, who were now faced with extraordinary challenges to deal with.

Read more »

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March 7th, 2022  |  Published in - Awards

View of the curves form the side

The CMA (Concrete Manufacturers Association) Awards for Excellence are truly underway now. We have worked hard at submitting our best retaining wall entries in the engineering and aesthetics categories and are very proud of the resulting videos that where so skilfully put together by the CMA, especially Liandre Bezuidenhout. Entries will close 6 May and adjudication will officially close the 22 June 2022. Read more »

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February 11th, 2022  |  Published in - Landscaping & Terracing, Gravity Retaining

As we enter another year of the Covid saga, we hold thumbs tightly that there will be a turnaround of lockdowns, curfews and any other restrictions placed on industries and life in general.

For us, business has mostly continued as normal, but tougher than before, within the confines that the Pandemic placed on us as a business. Luckily retaining walls are mostly indispensable, especially ones that are versatile, technically established and proven over more than 40 years and lastly, fully plantable and durable.

Read more »
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December 10th, 2021  |  Published in - General News

Meeting at Egypt Grid, Cairo, Egypt

End November, Terraforce flew to Egypt to visit our new partners, Brix. Even though we had to cut our trip short due to sudden flight restrictions because of Omicron being discovered in South Africa, we had four successful days in Cairo. We thoroughly enjoyed meeting the team at the factory in New Cairo, as well as meeting companies EIWC and Egypt Grid to establish new working relationships.

Read more »

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October 19th, 2021  |  Published in - Composite Walls, - Planting & Irrigation

Terraforce L11 block earth retaining walls draped by abundant creepers

Four years later, the Terraforce round face finish walls at the new Harbour Bay Mall in Simons Town, South Africa, are looking fantastic! Expertly installed by Terraforce Recommended Contractor Dassenberg Retaining Systems using the specified Terraforce L11 block these earth retaining walls are now draped by abundant creepers of many shades of green, softening and greening them very effectively. Read more »

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October 4th, 2021  |  Published in - Landscaping & Terracing

Terraforce walls transform a garden

Narrated by Johan van Rooyen, Prestige Landscaping & Construction, Western Cape: “This is like the Cinderella Story of the 1 out of 100 backyards everywhere.”

Blocks supplied by Terraforce licensed manufacturer, Klapmuts Concrete
Read more »

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August 19th, 2021  |  Published in - Storm Water Control, Erosion Control

Drain outlet and Terraforce wall

Since most retaining walls are semi-impervious, which means water cannot easily pass through the wall itself, efficient drainage is crucial. When drainage goes unaddressed, hydrostatic pressure can build up behind the wall and cause damage such as bulging or cracking, or even collapse. Read more »

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