topic Re: Change wall joint when three walls hit the same spot in Modeling

Change wall joint when three walls hit the same spot

nathanburkholder — Sun, 05 Jul 2026 20:24:24 GMT

Hello,

I have spot where three walls joint at one location. I want to change the joint so that the double wall continues through as indicated by the red line. How can this be done?

Operating system used: Windows 11

Re: Change wall joint when three walls hit the same spot

Barry Kelly — Mon, 06 Jul 2026 00:21:32 GMT

Try adjusting the junction order value of the walls.

Make the 2 that you want to join the same number and the other wall on the left a lower number.

Barry.

Re: Change wall joint when three walls hit the same spot

ryejuan — Mon, 06 Jul 2026 04:56:26 GMT

I also encounter this issues like it can't solve the connection graphically granting that they are the same building material. Aside from adjusting the junction order are there any other ways?

Re: Change wall joint when three walls hit the same spot

Patrick M — Tue, 07 Jul 2026 15:03:44 GMT

this seems to come up way too often for graphisoft to keep ignoring it. there are solutions to these issues, but they are anything but intuitive.

wall connections are typically solved by a combination of:
-reference line position

-building material priority

-wall junction order

...

Barry has already suggested the most likely solution to fix this, the junction order. But as Ryejuan asked, are there other options... If this was my file, I would always start with reference line position. In the screen shot shared by the OP, try putting the reference line here:

Often the reference line needs to have an offset to keep walls positioned properly and joining in the correct order. Junction order by itself is never a catch all, and often results in a domino effect with junctions at the other ends of the walls being adjusted.

Re: Change wall joint when three walls hit the same spot

Kumar Jo — Tue, 07 Jul 2026 19:16:11 GMT

Keep the left and bottom wall in separate layer with different intersection group than the double wall.

This is in one of my project where walls has to join 0,90 and 45 degrees. Pasted the photos before and after enabling the reference line. As I model the interior gyp. board finish separate, I have to keep those walls' reference line away from the core with different intersection group number. Reference lines of elements with same intersection group meeting at close or same point doesn't work well all the time.

Re: Change wall joint when three walls hit the same spot

Barry Kelly — Wed, 08 Jul 2026 00:21:04 GMT

If all of the reference lines end at the one point, it is just adjusting the junction order value.

No need to play with different layers and intersection group numbers.

Barry.

Re: Change wall joint when three walls hit the same spot

Stefan L_ — Wed, 08 Jul 2026 11:28:41 GMT

@Patrick M schrieb:

... domino effect with junctions at the other ends...

GS obviously doesn't play domino, they don't care about other ends.

I don't expect this historical mess to be tackeled before I retire...

😔

Re: Change wall joint when three walls hit the same spot

Barry Kelly — Thu, 09 Jul 2026 00:37:26 GMT

Yes, the domino affect can be a problem.

Another solution is to place a column (even a custom shaped complex profile column) at the junction.

Or there is a 'patch' tool, but that is just a 2D cover up.

Barry.