What Is Construction Geometry in SolidWorks?

Construction geometry is a fundamental concept in SolidWorks that allows users to create reference geometry and aid in the design process. It serves as a foundation for creating complex models and assemblies by providing precise measurements and references for other features. In this article, we will explore what construction geometry is, why it is important, and how to use it effectively in SolidWorks.

What is construction geometry?

Construction geometry refers to the basic shapes and lines that are used as references when designing models in SolidWorks. These elements are not visible in the final product but serve as a guide for creating other features such as sketches, dimensions, and relations. By using construction geometry, designers can ensure accuracy and maintain control over their designs.

Types of construction geometry

In SolidWorks, there are several types of construction geometry that can be used:

  • Points: Points are used to define specific locations in a model. They can be created at intersections, midpoints, or any desired position.
  • Lines: Lines serve as reference elements for sketching or aligning other features. They can be straight or curved.
  • Circles: Circles are frequently used to create arcs or define specific areas on a model.
  • Arcs: Arcs allow designers to create curved features such as fillets or chamfers.

Why is construction geometry important?

The use of construction geometry is crucial for several reasons:

  • Precision: Construction geometry allows designers to establish precise measurements and references for other features. This ensures that the final product meets the desired specifications.
  • Flexibility: By using construction geometry, designers can easily make changes to their models without affecting the final product. This allows for iterative design processes and quick modifications.
  • Organization: Construction geometry helps to organize complex models and assemblies by providing a clear structure and hierarchy.

How to create construction geometry in SolidWorks

To create construction geometry in SolidWorks, follow these steps:

  1. Select the desired sketching tool from the Sketch toolbar.
  2. Create the construction element by specifying its dimensions or position.
  3. Right-click on the element and select “Construction Geometry” from the context menu.

By designating an element as construction geometry, it will not be included in the final model but will serve as a reference for other features.


In summary, construction geometry plays a vital role in SolidWorks by providing precise measurements, references, and organization for models and assemblies. By utilizing different types of construction geometry such as points, lines, circles, and arcs, designers can ensure accuracy and flexibility in their designs. Understanding how to create and use construction geometry effectively is essential for mastering SolidWorks and creating high-quality models.