Unable to build walls using OFFSET?

I am new to Sketchup and have watched so many videos. I successfully did a bathroom rendering, but for some reason I am now unable to use the offset tool to build walls in a floorplan. See attached.
Would someone be able to point out what I am doing wrong?
3 Warbonnet - Main Living Area.skp (80.6 KB)

Get rid of the superfluous edges, shown selected, below. Then trace and edge so you have a face on which to run Offset.


Thanks Dave - it is still not working for me and I can’t figure out why. I watched your video - erased the two partial walls, trace that back wall again, press “F” for the offset tool but then nothing will select - and if I select a wall nothing happens.

Did you erase the little tiny overrun above where my cursor is in the screenshot?

Did a face form when you did that?

Also, if you change your background to something other than white (like the gray in the default template) it will make it easier to reel when your face is filled in and can be offset. With the white background, everything looks the same.

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No face, the only thing that happens in the half moon appears when I use the F key for offset.

You need to have the face before Offset will work in this case.

Upload the latest version of your file.

3 Warbonnet - Main Living Area.skp (529.1 KB)

Thank you for taking the time to look at this with me.

Now the main problem is you’ve grouped the geometry for that small room or patioso you no longer have a closed loop of edges for the large area.

Trace along the edges of the group to complete the loop of edges for the larger area.

Oh yes I guess that would help - I’m in Canada so EST. It’s currently 6pm here.

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Ok so that worked for the main area, to retrace the places that I grouped. I now need to do the same for the small area - its actually a bathroom. I keep going over it but it still isn’t working for me.
3 Warbonnet - Main Living Area.skp (542.7 KB)

If you spend some time at The Learning Center, you will learn how to use the tools to get what you want. (interactive tutorials) Also, go to The SketchUp YouTube Channel and pay attention to the Square One series. Both are sponsored by the SketchUp Crew and well worth the time spent there.

You need to open the group for editing before you can make any modifications.

Youve also got a goofy diagonal drawn in there.

Thank you!

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