Only 3 amazing step to scale in Sketchup

There are 3 ways to scale in SketchUp: along the X axis, the Y axis, or the Z axis. To scale from any axis, press the S key (or click the Scale shortcut on your toolbar), click a green grip box, and drag along that axis.

Tutorial video :

Steps by steps :

• There are 3 ways to scale in SketchUp: X axis, Y axis, Z axis
• Click on a group or component, then press S (Scale) or click the shortcut on your toolbar
• To scale a group or component along a chosen axis, click the green grip box on that axis
• Scale values are entered as a ratio. Example: a table is 500 wide and you want 600, so type a scale factor of 1.2. You can also type real dimensions instead of a ratio — type a value followed by a unit (for example “600mm”) and SketchUp does the math for you, which is easier than working out the factor by hand.
• For uniform scaling in all 3 axes at once, click a corner grip of the green box, then type your scale value
• Hold Ctrl (Option on Mac) while dragging a grip to scale about the center instead of from the opposite corner, so the object stays put rather than drifting to one side.
• Tap Shift to toggle Scale Uniformly — this keeps proportions locked even when you grab an edge or face grip, so the geometry never deforms.
• Type a negative scale value (for example -1) on a single grip to mirror/flip the object along that axis — this is the classic way to make a mirror image in SketchUp without any extra tool, and it works on corner, edge, and face grips.
• A known gotcha: very small objects can be hard to scale because SketchUp’s grips can’t shrink past a certain on-screen size. If a tiny component refuses to scale, group it, scale the group up (for example ×10), edit it, then scale back down — or scale relative to a temporary larger reference and delete it afterward.