Stop Fighting Corridors. Start Designing with
Kobi Civil Modeler
Create intelligent, parametric BIM objects for civil infrastructure directly from polylines, feature lines, and surfaces. Model sidewalks, retaining walls, grading objects, and more without the complexity of corridor-based workflows.
Works with Autodesk Civil 3D, AutoCAD, and BricsCAD.
SEE IT IN ACTION
Create Sidewalks with Parametric Controls
Create sidewalks along a selected baseline and define their width, cross slope, depth, and curb profiles. Adjust parameters and use targets to accommodate changing design requirements.
OVERVIEW
A Smarter Way to Model Civil Infrastructure
Kobi Civil Modeler combines parametric modeling, reusable cross-section templates, and flexible solid modeling tools to create both linear and complex, irregular infrastructure objects. Models remain linked to their baselines and targets, making it easier to modify geometry, adjust dimensions, and adapt designs as projects evolve.

Solid Objects
Create custom 3D solids from templates, cross-sections, or existing edges.

Parametric Modeling
Model civil objects using editable dimensions, slopes, and targets.

Grading
Generate grading lines, surfaces, and solids using flexible operations.
FEATURES
See Kobi Civil Modeler in Action
Explore how Kobi Civil Modeler simplifies everyday modeling tasks, from creating parametric infrastructure objects to building complex 3D geometry and making design changes.
Create 3D Civil Objects
Turn 2D Cross-Sections into 3D Solids
Create complex 3D structures directly from existing 2D cross-sections. Simply select a baseline and a cross-section to generate a solid, with the flexibility to adjust its position, orientation, and length.
Model with Transitions
Create 3D solids from custom cross-sections and adapt their geometry along the baseline. Apply different templates to individual sections to accommodate changes in shape and dimensions. Learn more.
Model Complex Geometry
Create 3D Solids from Existing Edges
Generate continuous 3D solids directly from existing linear geometry. This flexible modeling approach is particularly useful for irregular structures where standard cross-sections are not suitable.
Model Infrastructure Along Existing Terrain
Use surface-based grading operations to create geometry that responds to existing terrain. Generate grading lines and surfaces to support the modeling of retaining walls and other infrastructure elements.
Control and Connect Objects
Control Geometry with Dynamic Targets
Use 3D polylines or feature lines as targets to control object geometry along a baseline. Define varying heights, elevations, widths, or slopes and update linked objects as the design changes.
Connect 3D Objects and Create Transitions
Attach 3D objects to one another to create connected infrastructure models. Build transitions between different cross-sections and geometries while maintaining control over how individual elements interact.
Edit and Refine Your Models
Edit Your Models with Ease
Modify existing objects directly in the drawing using grips. For more precise control, adjust templates, parameters, station ranges, and targets through dedicated editing tools without recreating the model from scratch.
APPLICATIONS
What Can You Model with Kobi Civil Modeler?
From roads and sidewalks to retaining walls, embankments, and complex site infrastructure, Kobi Civil Modeler gives you the flexibility to design a wide range of civil structures. Explore some of the practical examples below.

Roads & Intersections
Model complex road geometry, including curbs, pavements, and connected infrastructure elements.

Bridges & Structures
Generate custom structural solids from 2D cross-sections.

Ponds & Basins
Create graded ponds and basins using slopes and existing terrain geometry.

Portal Structures
Create custom portal structures and other complex infrastructure elements using 3D solids.

River Barrier
Create custom river barriers and hydraulic structures that adapt to existing terrain.

Retaining Wall
Create retaining walls from predefined templates or custom cross-sections, with options for transitions, varying geometry, and dynamic target control.
COMPATIBILITY
Supported CAD Platforms
|
Autodesk® |
|
|
Civil 3D, versions 2021–2027 AutoCAD, versions 2021–2027 |
Pro/BIM/Mechanical, V23–V27 |

Autodesk®
Civil 3D, versions 2021–2027
AutoCAD, versions 2021–2027

BricsCAD®
Pro/BIM/Mechanical, V23–V27
Ready to model differently?
Try Kobi Civil Modeler in your existing CAD environment and see how direct, parametric BIM modeling fits into your workflow.
Frequently Asked Questions
Below are the most common questions about Kobi Civil Modeler. For installation, licensing, and activation help, visit our general FAQ page.
1. What is Kobi Civil Modeler?
Kobi Civil Modeler is a CAD extension for parametric BIM modeling of civil infrastructure. It enables engineers and designers to create intelligent 3D objects, including sidewalks, retaining walls, lanes, grading objects, and custom solids, directly within their CAD environment – without the complexity of corridor-based workflows.
2. Can I use Kobi Civil Modeler without creating Civil 3D corridors?
Yes. Kobi Civil Modeler allows you to create and modify 3D infrastructure objects directly from polylines, feature lines, surfaces, and existing drawing geometry. There’s no need to create corridor assemblies or subassemblies, making it particularly useful for complex, irregular, or non-linear structures.
3. What modeling methods does Kobi Civil Modeler support?
Kobi Civil Modeler offers three main modeling approaches:
– Solid Modeling: Create 3D solids using reusable cross-section templates, existing drawing geometry, or longitudinal edges.
– Parametric Modeling: Create lanes, sidewalks, and retaining walls using editable dimensions, slopes, and targets.
– Grading: Generate grading lines, surfaces, and solids using operations such as Offset and Slope or Slope to Surface.
4. Can I modify objects after creating them?
Yes. Civil Modeler objects remain editable after creation. You can modify parameters, cross-section templates, station ranges, and targets using dedicated editing commands. Objects can also be split, joined, copied, or adjusted using grips, depending on the object type.
5. Does Kobi Civil Modeler support BIM properties and materials?
Yes. Kobi Civil Modeler supports BIM-oriented modeling by allowing you to assign layers, materials, and property sets to elements within solid templates. This enables you to create 3D infrastructure objects that contain useful information beyond their geometry.
6. Can I create objects with varying dimensions along a baseline?
Yes. Civil Modeler supports multiple parameter sets and cross-section templates along a single baseline. You can vary dimensions, slopes, and other supported properties at different stations. Horizontal, vertical, and 3D targets provide additional control over how geometry changes along the modeled object.
7. Which CAD platforms are supported?
Kobi Civil Modeler is compatible with:
• Autodesk AutoCAD® and Civil 3D® (2021–2027)
• BricsCAD® Pro/BIM/Mechanical (V23–V27)
The software integrates directly into these CAD environments, allowing you to work with familiar drawing tools and workflows.
8. How much does Kobi Civil Modeler cost?
Kobi Civil Modeler is available for $1,295 USD per year. The annual subscription includes access to the software, all updates released during the subscription period, customer support, and webinars.
For more information or to purchase a license, please contact our sales team at sales@kobilabs.com.
HEAD OFFICE
3910 163rd Ave SW
Tenino, WA 98589
USA
EU OFFICE
Podutiška cesta 92
1000 Ljubljana, Slovenia
Europe
EMPLOYMENT
To apply for a job with KobiLabs, please send a cover letter together with your C.V. to: sales@kobilabs.com

BricsCAD®