how to make an arch door in sketchup

Mastering Arch Door Creation: A Step-by-Step SketchUp Guide

By William AllenFebruary 3, 2026

Embarking on a journey to design an arch door in SketchUp? You're in the right place. This comprehensive guide will walk you through the process, from understanding the basics to creating your perfect arch door. Let's dive in!

SketchUp, with its user-friendly interface and powerful tools, is an excellent platform for architectural design. Creating an arch door might seem daunting at first, but with the right steps, you'll be designing like a pro in no time.

Understanding Arch Doors and SketchUp Tools

Before we start, let's clarify what arch doors are. Arch doors are doors with an arched top, adding a touch of elegance and style to any space. In SketchUp, we'll use the Line tool, Eraser tool, Move tool, and 3D Warehouse to create our arch door.

Sketchup / Creating a Arch door in Sketchup

Familiarize yourself with these tools. The Line tool (or press L) is used to draw lines, the Eraser tool (or press E) to remove unwanted lines, the Move tool (or press M) to position your door, and the 3D Warehouse (Window > 3D Warehouse) to import door components.

Setting Up Your Workspace

First, open SketchUp and choose Architecture Design. Then, set your preferred units of measurement (e.g., Feet and Inches) and scale. A standard door height is 80 inches, and width varies, but let's start with 36 inches for our arch door.

Sketchup / Creating Curved Arch Door / Arch Grid

Orthographic views (Front, Top, and Side) help in designing. Press the F5 key to toggle between views. We'll primarily work in the Front view for this project.

Drawing the Arch

To draw the arch, we'll use the Line tool to create a semicircle. First, draw a horizontal line (36 inches) for the door's width. Then, draw a vertical line (80 inches) for the height. At the midpoint of the horizontal line, draw a line upward to create a right angle.

Now, switch to the Orbit tool (or press O) to view your lines in 3D. Draw a semicircle using the Line tool, starting from the top of the vertical line and ending at the right angle. Switch back to the Front view. You've just created the arch!

a drawing of a man standing in front of a building with an open door and red arrow pointing to it

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an arch made out of bricks with a red bow on it's top and bottom

Creating the Door Frame

With the arch drawn, it's time to create the door frame. We'll use simple rectangles for the frame. First, draw a rectangle (36 inches x 80 inches) to represent the door frame's inner dimensions. Then, draw another rectangle (38 inches x 82 inches) for the outer dimensions.

Use the Eraser tool to remove the overlapping sections, leaving you with a door frame. Now, let's add some style to our arch door.

Adding Details to the Arch

For a classic look, we'll add keystones and voussoirs to our arch. Draw a small rectangle (1 inch x 3 inches) at the top of the arch for the keystone. Then, draw smaller rectangles (0.5 inches x 1 inch) along the sides of the arch for the voussoirs.

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an image of a computer screen shot of a building

several doors are shown in different styles and sizes

an image of a set of windows in the shape of archs and arched doors

an architectural drawing shows the top view, bottom view, and front view of a door

Use the Move tool to position the voussoirs, tapering them from the keystone to the bottom of the arch. You can also add decorative elements like moldings or panels to your door frame using rectangles and lines.

Importing a Door Component

To add a realistic touch, let's import a door component from the 3D Warehouse. Open the 3D Warehouse, search for 'arch door', and choose a design you like. Click 'Download' to import it into your model.

Position the door component within your door frame using the Move tool. You can resize it if needed. Now, your arch door is complete!

Congratulations! You've just created an arch door in SketchUp. As you gain more experience, you can experiment with different arch shapes, frame styles, and door components. Happy designing!