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I'm creating a sofa in blender and working in inches. If I create a seat cushion 24x24x4 and this shows in the properties panel (N) dimensions, why do the values in the SCALE for x,y&z change - apparently to half that of my x,y&z dimensions?

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Dimensions are the actual size of your mesh. Scale is the object's size relative to its base size.

For example, if you took a 2x2x2 cube, its dimensions would be 2x2x2 and its scale would be [1, 1, 1]. If you double the size of the cube, the dimensions are now 4x4x4 and the scale is [2, 2, 2] since 4x4x4 (the object's current size) is double the volume of 2x2x2 (the object's base size).

To answer your question, your scale is probably different because you scaled it in object mode (as 3fingeredfrog said in the OP's comments). To make it [1, 1, 1] scale while maintaining the dimensions, press CTRLA and select Scale. Tada!

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  • $\begingroup$ Thank you, that makes sense. Sounds like I can just ignore the changing scale as long as my object dimensions are correct. $\endgroup$
    – b0rdrgrl
    Feb 26, 2019 at 20:34
  • $\begingroup$ @b0rdrgrl Well, you really should try to keep the scale [1,1,1] in the end because when you do certain operations (such as UV unwrapping) with a non-[1,1,1] scale, it gets weird. $\endgroup$
    – Najm Hoda
    Feb 26, 2019 at 23:30

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