solver

You are getting closer. Read about that in Help, or just click it and see what happens.

With Suite and Architectural, you need to get the roof to build as correct as possible, then turn off Auto Rebuild and work on the plan. This might involve adding, or removing walls, or simply moving walls. Take one of those horizontal yellow walls and pull the end back disconnecting it from the exterior wall on one end and see what happens to the roof. Try the same with the other yellow wall after reconnecting the first one.

If using Pro, and asking about roofs, always mention if you are using the auto roof builder, or doing them manually. Your 3rd image clearly shows the problem. What's intruding into the space where the wall should be?

With the Terrain selected, is there anything in the Edit Toolbar that has to do with terrain?

Select the Terrain and see the Edit Toolbar -- or right click the Terrain Perimeter and see the same thing. Also, help the helpers by completing your forum signature. Signature Knowing what title (Suite, Pro etc) and version (2018, 2019 etc) you are using is key to providing the best response. Something like Pro 2023, or Architectural 2018 is all that's needed. Since this is the Home Designer forum, no need to include that, or anything about Chief Architect. Please don't comment saying you included that info in your post, and please do not make another comment saying what you have, instead, place this info in your Signature so it's always available by clicking on your user name (or the 3 bars) at the top right of the page, click Account Settings, then Signature on the left. Doing so makes it always available, and keeps others from having to hunt for it. And, turn on signature display too. Video about doing your signature: https://www.youtube.com/watch?v=FlbX3Uzrelw

Perhaps.

And looking at your floor plan images, all your roof baselines are in the wrong place. See videos on the Home Designer website, Chief YouTube channel and my YouTube channel (link below). This is auto built -- took 10 seconds ...

Why are you using manual roof planes? To fix the problem, delete the 2 outside roof planes, break the center one as shown and drag the edge out to the end of the house. Join the ridges. You cannot join two butting roof planes as you are trying to do. Roof planes are also polyline based objects, so you can union them if they overlap, and there is a tool to make one coplaner with another.

That's because the program does not see them as rooms. Usually one or more walls is set to No Room Definition. Clear that setting and see what happens. Tip: On each floor, select a wall tool (any will work). Then holding Shift, marquee around the entire plan to select all walls. Open and change all at once. And questions go in Q&A please. Tips is where you share your tips.

Few people (at least in the Chief Architect product line) use the Space Planning features, and the ones that do complained about needing to delete the auto placed doors so they could place them as they wished. If you look in Help, there is a section on what's new in each new version. Maybe something there.

Always mention what software you are using -- Pro, Architectural or Suite, and the version (year). Not even the Chief Architect products are able to do what you want simply. For the cabinets in the first picture, use shallow cabinets to get the fronts and to keep the backs from sticking through the roof. For the under stair units, it depends on the door style. You can sometimes use a passage door with a Tudor Arch. Also a Custom Backsplash can be used in creative ways -- search the forum for ideas.

It's really helpful to post a screen capture directly -- no need to encapsulate it in a PDF. Also key to know what software you are using -- Suite 2012, Pro 2024 etc. And attaching your plan file -- close the program, 14MB size limit -- zip if needed, will allow someone to debug instead of just guessing.

Welcome to HomeTalk. Some tips for you. Please start here: https://hometalk.chiefarchitect.com/topic/8582-getting-started-with-hometalk/ And please post questions in General Q&A. Tips & Techniques is where you share your tips and techniques. Are you asking permission, or maybe you are having a problem creating attic trusses. If you are having a problem, the help resources linked in the link above should get you started. If not, explain what's going on in a new thread in Q&A.

What have you tried? What does haywire look like? Here are some tip. Say what you have tried, and show the result. Often it's a simple thing and the problem can be resolved just by looking at the images. Attach the plan file. Close Pro, zip if larger than 14MB and attach as you did the images. With the plan file, someone can take a quick look instead of guessing. The program is not perfect. Sometimes you can make all the correct settings, but the program fails. Sometimes, when working on roofs with Pro, you will need to use the manual roof tools. The people here are all volunteers, so try to make it easy on us. No one wants to spend time repeating what is covered in the help system, or in a video.

Look at Drawing Sheet Setup. Use a new Layout with your new format. Send your 2 elevations to the same page and position as you like.

Did you use the Reset to Defaults I show above? Do you understand wall height is controlled by room ceiling height?

Close the program, attach the plan file just as you did the image. Zip if needed. That should happen automatically if your settings are correct and you are using the tools correctly. Have you manually adjusted the walls? Go to Edit>Reset to Defaults, check these options. And it's helpful to always say what product you are using -- Pro 2024 for example, and when asking about roofs (when using Pro) say if you are auto building or using the manual roof tools.

Chief Home designer x16 doesn't tell us anything. And it's confusing when you say Chief and x16 as those refer to the Chief Architect products, not Home Designer. But then maybe you are using X16? If so, the correct forum is ChiefTalk

Two tips. Always say what product you are using -- Pro 2024, Suite 2012 etc. Attach the plan file so someone can see exactly what you are doing. 14MB size limit. Close Home Designer first, zip if needed.

After lowering the roof planes, was framing rebuilt?