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Foundation Structural Analysis and Design

Design, analyze and detail foundations with S-FOUNDATION, the most customizable and automated foundation management solution available.

S-FOUNDATION automatically generates and manages the underlying structural model as you define foundations, analyze, and design while still giving the engineer complete control over reinforcing, loading, and geometry.

Export your completed foundation design to merge your superstructure and substructure models in S-FRAME Analysis for further evaluation.

Foundation Modeling

Model Virtually any Foundation

S-FOUNDATION will model virtually any foundation including isolated footings, combined footings, continuous footings, wall footings, strap footings, and mat foundations.

Foundations can include pedestals, walls, piles, steps, holes, and areas of increased or decreased thickness.

Quick and Easy Footing Creation

Easy to use graphical tools help users define a footing component database to efficiently model footings.

S-FOUNDATION modeling tools are designed for efficiency with standardized keyboard shortcuts found in other S-FRAME and 3rd party software to help users become productive quickly.

Model Mat Foundations of any Shape and Size


No matter what shape and size your architectural drawings specify, virtually any mat foundation can be modeled quickly and easily in S-FOUNDATION.

modeling mat foundations

Automatic Finite Element Model Generation

The underlying finite element mesh is automatically and quickly generated using the same industry-leading mesh algorithms used in S-FRAME. Mesh constraints are fully adjustable by the user. Update your model and watch the algorithms redefine a new mesh using your constraints.

fea modeling for foundations
foundation model


S-FOUNDATION Import and Export

Full S-FRAME Import and Export Integration

Import superstructure from S-FRAME superstructures models and use the model as tracing paper to easily place your footings and foundations, as well as having the base reaction loads from the superstructure analysis in S-FRAME automatically applied to the foundation model. Once the foundation analysis and design are complete, export the model back out to S-FRAME for further analysis using the newly modeled foundations as the base conditions for the superstructure.

Import from 3rd Party Structural Analysis and CAD Programs

Run S-FOUNDATION as a stand-alone analysis and design foundation application or integrated within S-FRAME Analysis. With S-FRAME Analysis, two-way data transfer automatically applies foundation loading conditions and post-processing from S-FRAME Analysis, then combines the optimized foundation model with the S-FRAME Superstructure model for a more detailed soil-structure interaction analysis.

Optionally import support data (locations, reactions, preliminary foundation design) from any 3rd party analysis package, to generate a model and optimize the foundations.

Import from 3rd Party Structural Analysis and CAD Programs

Import geometry and loading information from CSV files to use as the starting point for your model.

foundation soil resistance profile


Soil Supports

Nonlinear zero tension soil springs automatically generated on foundation joints considering the assigned soil properties. View and verify spring stiffness, pile head fixities, and tip support conditions to match desired analysis parameters.

Soil Pressure and Uplift Analysis

Visualize soil pressure contours to identify areas of uplift and run an uplift code check.

Rigid Zones

Rigid zones automatically created under pedestal footprints and walls using rigid links, to avoid load concentration and ensure loading pressure is transferred to the pad realistically.

Strip Lines

S-FOUNDATION automatically generates strip integration lines, with exclusion areas, based on code requirements and pedestal locations.

Design Codes Supported

  • CSA A23.3-04
  • ACI 318 – 11
  • Eurocode 2 EN 1992-1-1:2004 Default and UK Annex

Performance Assessments

  • One way and punching shear
  • Flexure
  • Bending Plus Axial
  • Axial Forces and Deflections
  • Pile Lateral Deflections
  • multiple geotechnical checks and intermediate calculations
  • multiple structural checks and intermediate calculations

Geotechnical Calculations

  • Soil Bearing
  • Soil Settlement
  • Overturning
  • Contact Loss (Uplift)
  • Bearing at Support
  • Horizontal Sliding

Material Quantities

  • Rebar Cut Lengths
  • Rebar Total Lengths
  • Concrete Volumes
  • Rebar and Concrete Weights
  • Rebar and Concrete Costs

Foundation Design

Design using the rigid or flexible (FEA) method.

S-FOUNDATION’s analysis, design and detailing capabilities are built on the proven and trusted S-CONCRETE and S-FRAME FEA solver and design engines.

Automated Design Wizards optimize foundations quickly and efficiently.



foundation design

S-FOUNDATION Analysis and Design Results

View code check results to any desired level of detail – including intermediate calculations, formulas and code clauses.

Filter results on multiple criteria to pinpoint areas of interest.

Advanced 3D model visualization, comprehensive and customizable reports in PDF or Excel™ format.

foundation contours

Automation and Customization

Customizable Design Wizards

S-FOUNDATION includes design wizards to help design foundations according to your custom constraints. Wizards use the S-FRAME OpenAPI, are open source and fully customizable to meet your design requirements.

Customizable Modeling Wizards

Included modeling wizards provide a starting point for modeling your standalone model and allow further customization to meet user needs.


S-FOUNDATION is sold in three different versions: Standard, Professional, and Enterprise.

        Compare all  S-FOUNDATION  Editions        

S-FOUNDATION is sold as a standalone application that integrates easily with S-FRAME Analysis.

Licenses are available as single installation and LAN, WAN or GLOBAL WAN network licensing.

System Requirements

  • PC-based: Windows® 10, 8, 7 or Vista
  • Min 2 GB RAM, Recommended 4 GB or more
  • Graphics: DirectX 9.0c compatible graphics card – Must support hardware vertex processing


Clients who purchase S-FOUNDATION are entitled to annual support and maintenance benefits.
Email and telephone client support backed by the industry’s most dedicated and responsive engineering team.

  • Access to all new releases
  • Free and discounted training classes
  • Flexible licensing adaptive for all office installation configurations from standalone installation, local area network to Global Wide Area Licensing support

S-FOUNDATION Latest Enhancements and Additions

S-FOUNDATION 2018 Professional Release includes over 50 new enhancements and additions

  • New Unparalleled Automation and Customization Options
  • New mat foundation features including irregularly shaped mats with holes, mats that support pedestals and or walls
  • Improvements to wall foundations to include pedestals in wall footings and allow for different widths or offsets within the same wall footing
  • Improved soil profiles enable users to define multiple soil layers under different foundations
  • Improved ability to apply concentrated steel reinforcing in specific areas of interest
  • New Analysis and Code Check tools make it easier to view analysis results, soil bearing contours, loss of contact areas, and rebar strip/patch code utilization