The use of sophisticated software packages can assist engineers in developing cost effective solutions to exacting international design standards. They offer the ability to run a range of design scenarios to cover differing ground and loading conditions to minimise the design risk for a project. To assist engineers with this process, the Geofabrics team of engineering specialists are available to give technical advice in the use of the software as well as provide in-house or seminar training.


Macra1 - Water Courses

Macra1 conducts a stability analysis of water course cross-sections, with respect to water flow by checking the hydraulic stability of different bank protection linings given an allowable shear stress and roughness coefficient for the various materials selected.

Macra2 - Gabion Weirs

Macra2 was developed to provide engineers with a rapid and efficient tool with which to conduct the hydraulic and static analysis of different type of gabion weirs.

Subsurface Drainage Design Software (SUDDS) - Road Drainage

Subsurface Drainage Design Software (SuDDS) has been developed to assist road designers and consultants to incorporate modern drainage practice into their road designs. SuDDS is an easy to use software for road subsurface drainage design. SuDDS can perform net costing calculation of subsurface drainage designs to ensure high value and efficiency of the installation procedure. Cost comparisons of various designs can be performed with ease. With a validated design and cost calculation, the user can easily produce pdf reports summarising all of the relevant calculations as well as CAD files for the drainage profile. For an introduction and overview of the SUDDS software visit or click the button below.


SpectraRail - Rail Track Optimisation

SpectraRail software provides engineers with a quick and effective tool for evaluating design options and optimising rail track support using Tensar Geogrids. Developed specifically for Tensar’s SpectraRail Railway Improvement System, SpectraRail Software enables users to evaluate and compare designs for both non stabilised and mechanically stabilised rail trackbeds with comprehensive cost analysis for each alternative. SpectraRail software is a comprehensive, systems-based software suite that offers the full benefits of Tensar’s knowledge and experience in analysing both sub-ballast stabilisation and ballast optimisation applications. These applications incorporate Tensar TriAx Geogrids, key components of the SpectraRail System. This software is available free of charge following the completion of a free training module delivered by a Geofabrics specialist.

Retaining structures

GawacWin - Gabion Retaining Walls

The GawacWin Program has been developed to provide engineers with a rapid and efficient tool to conduct the stability analysis of gabion retaining walls. The program allows the check under a large number of different situations (geometry, surcharge loads, etc.) which may occur during the design process. The program requires the user to provide the problem data and perform the analysis commands. This program is able to deal with a huge variety of situations; the user may choose to perform complementary comparisons and analysis to overcome these limitations. PLEASE NOTE THAT THIS SOFTWARE IS AVAILABLE ONLY TO AUSTRALIAN BASED USERS.

MacStars W - Reinforced Soil Structures & Mass Gravity Gabion Retaining Walls

MacStars W provides designers with reliable way to analysis the stability of Gabion retaining walls and Terramesh reinforced soil walls and slopes having either simple or complex ground, hydraulic and load conditions. Current Version is October 2016 which is an update to allow opening and saving of files under a Windows 10 64 bit operating system.

TensarSlope - Embankment & Slope Stability

Software for experienced users who have attended the Tensar Training Workshops. This software analyses the stability of embankment and slopes incorporating Tensar RE500 geogrid and Basetex HS woven geotextile. Note special security dongle required to operate software. Latest version 1.14.18 dated 14/4/2016. Existing users should check their version and download this latest update.

TensarSoil - Reinforced Soil Walls & Slopes

Tensar program for the design of reinforced soil walls and slopes incorporating Tensar RE500 geogrids. The program incorporates new design methods and an improved graphical interface and replaces WinWall and TensarWallAS programs. The software is for experienced users who have attended the Tensar Training Workshops and for new users who have been provided in-house training by Geofabrics staff (10MB) Latest version 2.07.32a dated 20/10/2016. Existing users should check their version and download this latest update. Note: Install by creating the directory in the C drive i.e. C\Tensar programs and extracting the contents of the zipped file into that directory.


TensarPave - Geogrid Stabilised Pavements

Software package incorporating new Tensar TriAx geogrids to assist engineers in the design of geogrid stabilised pavements following the AASHTO design method. - Release notes available. Latest version 7.00.10. Existing users should check their version and download this latest update.