# Help! Easy way to change size throughout?

**URL:** <https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924>\
**Category:** Modeling Questions\
**Created:** [December 7, 2025, 8:59pm UTC](https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924 "2025-12-07T20:59:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JDMVan](https://avatars.discourse-cdn.com/v4/letter/j/839c29/32.png) [@JDMVan](https://discourse.shapr3d.com/u/JDMVan)\
**Post date:** [December 7, 2025, 8:59pm UTC](https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924/1 "2025-12-07T20:59:30Z")

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Hi all,

I’m new to this tool (and to 3d design in general) and still trying out the free version before buying the complete software. I use it on my iPad Pro mainly for designing the inside of my camper van build project.

I already designed all kinds of cupboards and other elements for the inside of the van, and designed them by using 16mm plywood for the biggest part. However, it turns out that 16mm ply is not something that is commonly available so I want to change it to 15mm. That of course has impact on the complete design and measurements…

I don’t think there is but wanted to check it with you, as it will save me a lot of time. Do you have any tips or ideas for how I could change it more easily other than redoing the complete design? Other thoughts are also welcome of course.

Thank you!

 ![IMG_0142](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/7/47bb28bda27205fafb265ffa95cf567f6072fbf7.jpeg)

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**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [December 7, 2025, 10:35pm UTC](https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924/2 "2025-12-07T22:35:45Z")

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Since you’re asking, I assume you didn’t use a parametric approach. In that case, the only way for you is to recreate almost everything from scratch.

If you had used a parametric approach, this wouldn’t be a problem. Here’s a simple example of changing thickness with just one variable:

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<div class="post-metadata">

**Author:** ![JDMVan](https://avatars.discourse-cdn.com/v4/letter/j/839c29/32.png) [@JDMVan](https://discourse.shapr3d.com/u/JDMVan)\
**Post date:** [December 8, 2025, 9:50am UTC](https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924/3 "2025-12-08T09:50:08Z")

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Nope, I indeed did it by direct modelling. This helps, as I now understand it might be good to redo it so that it’s more easy to change things.

Thanks!

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**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [December 8, 2025, 4:43pm UTC](https://discourse.shapr3d.com/t/help-easy-way-to-change-size-throughout/39924/4 "2025-12-08T16:43:52Z")

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> [@JDMVan](#):
>
> redo it so that it’s more easy to change things

That’s wise 🙂

Direct modeling can be parametric too, but you have to avoid using the move/rotate tool.