TERRAFORCE: Your living concrete wall.

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Terraforce blocks are exclusively manufactured by licensed manufacturers.

Find your closest supplier: Licensed Manufacturers / Installers – Terraforce

Terraforce Design Guide & Book of Ideas 2023

New Terraforce Design GuidePlease register here to access the Book of Ideas and the two-part Terraforce Design 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 manufactured by licensed manufacturers (retaining wall blocks) for environmentally friendly earth retaining walls and erosion control. Member of the Concrete Manufacturers Association (CMA) and a Level Four BBBEE Contributor.

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

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

Terraforce stackable, no-mortar 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 mortarless block 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. The tool can be found at the following link: 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


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

Download the Excel Design Sheet here:

Once the Excel Sheet has downloaded, toggle to the sheet called Terraforce Table Creator Rev1 at the bottom of the Excel sheet, 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

>>  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 stackable retaining blocks.

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

Watch: beautiful Terraforce retaining block wall installations all over the world!

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Latest News

May 31st, 2023  |  Published in - Specialist Installations

The Terrafix blocks heavy enough not to be blown of the roof.

Presented with a flat, unsightly rooftop at a home in Oranjezicht, Cape Town, South Africa, Bettina Haug, Euflora Landscaping, needed to find a solution for finishing off a surface that didn’t provide for a traditional roof top garden.

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May 5th, 2023  |  Published in - Double Skin Walls, - Roads, Driveway & Parking

Two long Terraforce retaining walls were needed to support the cut and fill slopes on site.

Conveniently located in a fast growing residential and commercial suburb just outside Worcester, the 15-million-rand project was started from scratch. Two long retaining walls were needed to support the cut and fill slopes on site. Read more »

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April 25th, 2023  |  Published in - Awards, - General News, - Stairways & Seating & Ramps

Beautifull landscaping finishes off the site

In 2021 Terraforce started the “Best Terraforce Project of the Year” Awards to recognise the excellent workmanship and manufacturing standards of our licensed partners and clients, highlighting the one that impressed us the most. Read more »

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March 28th, 2023  |  Published in - Storm Water Control

The Terraforce L12 was chosen for its weight per square meter

When UD Trucks, Kraaifontein, South Africa, needed a solution for heavy storm water flow in an area with a very high water table in summer and winter, an attenuation pond was proposed, lined with 2158 Terraforce L11 blocks to deal with the many pressures working in and around the pond. Read more »

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March 8th, 2023  |  Published in - Designs & Specifications


A South African manufacturer with a passion for excellence and knowledge sharing, Terraforce has become a hallmark brand in the highly competitive precast concrete hollow core retaining block field. Proprietary by design, Terraforce blocks are engineered to perform, backed by close to four decades of dedicated research and development, which started with the S block in 1984.

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January 13th, 2023  |  Published in - Roads, Driveway & Parking, - Storm Water Control

A stunningly eye-catching front yard/verge transformation with Terraforce® Terracrete™ permeable grass pavers by Tim Coote, Marmion, Perth, Western Australia.

Presenting a stunningly eye-catching front yard/verge transformation with Terraforce® Terracrete™ permeable grass pavers by Tim Coote, Marmion, Perth, Western Australia. Blocks made locally by The Block Makers, Geraldton, Western Australia. Read more »

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December 9th, 2022  |  Published in - Composite Walls

Terraforce® rock face boundary wall, Silicon Oasis, Dubai.

This year proved to be light at the end of a tunnel, with Covid measures easing and the construction industry picking up somewhat. It has, however, also been a challenging year, as everyone has had to adjust to school and work returning to normal, while enduring loadshedding and the usual political circus. Read more »

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November 23rd, 2022  |  Published in - Planting & Irrigation

Carpobrotus - suurvy on a round face Terraforce wall

According to Terraforce, detailed planning and competent workmanship are such critical aspects of any segmental retaining wall (SRW) that it is easy to forget one of the most important tasks of such a project: the final landscaping that will transform a bland mass of concrete into a display of colour, scent and texture.
Read more »

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October 17th, 2022  |  Published in - Designs & Specifications, - Stairways & Seating & Ramps

Detail of seating at Little Falls Trinity College

Ever since humans started walking the planet, they felt the desire to gather around a focal point to relax, negotiate and entertain each other – while sitting down. Today, these practical seating structures are still very popular, while the method of construction has become more user-friendly and building materials more varied and versatile.

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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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