A rectangle is a closed sketch object. Its four sides enclose an area that can become a solid or a machining region. You can change its dimensions after drawing it.
Try it in Cadivari
Open a sketch
Start a new project in CAD. Choose Sketch and select the Top plane. Drawing tools appear beside the main tool rail.
Choose Rectangle
Click Rectangle in the drawing column or press R while the canvas has focus. Outside an active sketch, the Draw menu also contains Rectangle.
Place opposite corners
Click once for the first corner. Move the pointer and click the opposite corner. The second click creates the rectangle; Esc cancels an unfinished preview.
Make the dimensions exact
Press V for Select and click the rectangle. In Properties, set Width to 160 mm and Height to 96 mm. Save your project for the next lesson.
A small exercise
Create one 160 × 96 mm rectangle on the Top plane. Select it and drag a gold corner handle, then undo the resize with Ctrl + Z.
What you should see
One closed rectangle remains at 160 × 96 mm. Selecting it shows four gold corner handles and editable dimensions.
Things to look out for
- Grid snapping can change the point you place. Read the preview and use Properties for exact dimensions.
- Press V before editing a finished rectangle. Staying in Rectangle starts another shape.
Check your understandingDoes resizing a rectangle require drawing it again
No. Select it and edit Width and Height, or drag a corner while its opposite corner stays fixed.
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Go deeper in the knowledge base
Instructions checked against the Cadivari 0.3.0 source and knowledge base on 2026-09-16. Lesson revision 1.