How to turn a complex 2D outline into a solid in SketchUp?

SketchUp Pro
1

Hi everyone!

I’m new to this forum, so I hope I’m posting in the right place! I’m trying to turn a curved surface into a solid object in SketchUp.

I’ve created the shape I want, but I’m struggling to turn it into a proper solid.

My goal is to create a single solid object with a uniform thickness of 12 mm, while preserving the exact shape and rounded corners.

Is there a relatively simple way to achieve this in SketchUp, or perhaps an extension that could help?

I’m still learning SketchUp, so any advice would be greatly appreciated!

Thanks in advance! :blush:

Screenshot 2026-11-12 at 09.59.23
Screenshot 2026-11-12 at 09.59.231317×858 102 KB

Hood .skp (158.6 KB)

2

yes, joint pushpull by fredo. it’s like a normal pushpull, but on more than one face.

depending on how regular / symetrical the shape is, you could also draw the profile (the thickness) and use a follow me to make it, but that’s only in some cases.

manually, you could also just duplicate your shape, scale it juuuuuuust a little bit down, and then using the line tool stitch both surfaces to make the sides. this one is free and it may look the part, but if you need absolute accuracy (to 3d print maybe) it’s not great.

EDIT : yeah, AnnoNiem has a very good “default tools” solution

3

There is the model, using joint pushpull. Hope this is what you was after.

Hood .skp (157.5 KB)

4

With basic sketchup tools:

  1. i’ve copied the bottom outer line.
  2. welded the edges.
  3. offset the edge 12 mm and “closed the face”.
  4. pushed and pulled it to desired heigth.
  5. resized the top as needed.
  6. adjusted top thicknes by resizing only the inner line.
  7. created the group, entity info showing ‘solid group/component’.

createshape-ezgif-resized

5

So many options…

Try using the new Follow Me tool under Procedures. If the taper is a consistent angle, draw the end profile as a group (green) and use the base edge as the path. And with Procedures they are easily editable if the profile isn’t quite right.

If the taper angle isn’t consistent then this won’t work e.g. tapered sides and a vertical front.

Screenshot 2026-11-12 at 09.53.52
Screenshot 2026-11-12 at 09.53.52786×966 43.2 KB

6

Wow, thank you all so much!:folded_hands: I’m honestly amazed by how helpful everyone has been, taking the time to explain everything in such detail and even fixing the sketchup file!

I’ve spent a long time trying to figure this out without success, so I really appreciate all your help. I’ll give it another go tonight using your suggestions.

What a great introduction to this forum. Thanks again everyone and have a wonderful day! :blush: