SketchUp Drawing Tool Shortcuts
Every SketchUp model starts as flat 2D geometry before anything gets extruded into three dimensions, and these shortcuts cover the tools for creating that starting geometry — lines, rectangles, circles, arcs, and freeform curves — each bound to a single unmodified letter chosen to be at least loosely memorable for what it does.
| Action | Windows | Mac | Description |
|---|---|---|---|
| Line tool | L | L | Activates the Line tool for drawing straight edges point to point, the fundamental building block for constructing flat faces in SketchUp. |
| Rectangle tool | R | R | Activates the Rectangle tool for drawing a four-sided flat face in one drag, commonly the starting shape before extruding into a 3D volume. |
| Circle tool | C | C | Activates the Circle tool for drawing a circular face; typing a number immediately after clicking the center adjusts the number of segments used to approximate the circle. |
| Arc tool | A | A | Activates the 2-point Arc tool for drawing curved edges, commonly used for rounded corners or archways in architectural models. |
| Polygon tool | No default single letter — Draw menu | Same | Draws a regular multi-sided polygon face by specifying a center point, number of sides, and radius, useful for hexagonal or octagonal shapes that would otherwise take many individual line segments to construct manually. |
| Freehand tool | No default single letter — Draw menu | — | Draws a continuous freeform line following the cursor's exact movement rather than straight segments between clicked points, useful for sketchy annotation lines or organic terrain-like edges. |
The Line tool (L) draws straight edges point to point, and it's the fundamental building block underlying nearly everything else in SketchUp: a closed loop of connected line segments automatically becomes a flat face the moment the loop closes, which is the geometry Push/Pull then extrudes into a solid. Clicking a series of points and pressing Escape to end an open chain, or clicking back on your starting point to close the loop, are the two most common ways a Line-tool session ends.
The Rectangle tool (R) draws a four-sided flat face in a single drag from one corner to the opposite corner, immediately creating a closed face rather than four separate line segments you'd need to manually confirm form a loop — commonly the very first shape drawn in a new model before extruding it upward with Push/Pull into a basic box form.
The Circle tool (C) draws a circular face, and it carries a genuinely useful precision feature worth knowing: typing a number immediately after clicking the circle's center point (before finishing the drag) adjusts how many straight segments SketchUp uses to approximate the circle's curve, trading a lower segment count (a rougher, more polygon-like circle, but lighter on the model's overall geometry) against a higher one (a smoother curve, at the cost of more geometry for SketchUp to track and render).
The Arc tool (A) draws a 2-point curved edge, commonly used for rounded corners on a rectangular shape or for archway forms in architectural models — SketchUp's Arc tool asks for the arc's two endpoints and then a bulge point to define how much the curve deviates from a straight line between them.
The Polygon tool has no default single-letter binding and is reached instead through the Draw menu; it constructs a regular multi-sided face (hexagonal, octagonal, or any specified side count) from a center point, a number of sides, and a radius — genuinely useful for shapes that would otherwise require drawing many individual line segments by hand and manually ensuring each one is the exact correct length and angle to form a true regular polygon.
The Freehand tool, also without a default single-letter binding, draws a continuous line following the cursor's exact movement in real time rather than straight segments connecting clicked points — useful for sketchy annotation marks, organic terrain-like edges, or any curve too irregular to construct efficiently from the more geometric Line and Arc tools.
A practical modeling sequence worth internalizing, since it reflects how SketchUp's drawing tools were genuinely designed to be chained together: draw a flat outline with Line, Rectangle, or a combination of both plus Arc for rounded sections, confirm the resulting face is a single clean closed loop (SketchUp shows a shaded face fill once a loop successfully closes, a quick visual confirmation that the geometry is valid), and only then move to Push/Pull to extrude it — attempting to Push/Pull before the underlying face has genuinely closed produces no result at all, since there's no valid flat face yet for the tool to act on.
Worth knowing about the Value Control Box mentioned in this page's FAQ: nearly every drawing tool here supports typing an exact numeric value immediately after starting the shape (a specific line length, a specific rectangle dimension, a specific circle radius) and pressing Enter to confirm that precise value rather than relying on freehand mouse dragging — this typed-precision workflow is one of SketchUp's most genuinely useful features for anyone doing dimensionally accurate work like woodworking or architectural plans, where eyeballing a dimension by drag alone simply isn't accurate enough.