Corner niche won't fill in

[Gary-Doski]

I thought the corner niche would fill in similar to the corner window? Anybody else have better luck with this?

[Rookie65]

I'm guessing that maybe since it's under the window family, maybe it's including the trimmer framing?

[mtldesigns]

1 hour ago, Gary-Doski said:

similar to the corner window

Hi Gary,

 

I tried this on a 2x4 wall and got the same results.  I'm thinking it has to do with wall framing, and that makes sense.  When I change that wall to a 2x6, the niche filled in, except at the bottom corners (1 and 2 attached).  However, when I continued either wall in the plan view, the whole box did fill in (3 and 4 attached)

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Edited 2 minutes ago by mtldesigns