Creating a Tray Ceiling using attic space

[PhilCrane]

Hi,

I have Home Designer Pro 2025 and am trying to create a room with a tray ceiling where the "tray" is actually part of the attic rather than the room. I've attached 2 drawings, the first is what I have created so far in Home Designer and the second is what I'm looking for. If I create a 10' high room I can then make soffits to get the shape I want but that leaves unwanted corners on the room (marked with x's on the first diagram. I want to remove these because the roof line I want cuts through the corner. The second diagram shows what I would like - the ceiling is 8' and the tray part takes up room in the attic and thus doesn't affect the roof line. Is this possible to create in Home Designer? It looks like it's possible in ChiefArchitect but that's way too expensive.

 

Looking at a post from a few years ago somewhere suggested creating a room within a room and setting the inner room at the required height but that still leaves square corners.

Thanks,

Phil

[y-g-m-n]

Well When I draw them I go inside room and draw a smaller room using room divider for walls then and ensure you enclose a space to make another room.

 

Then inside this room click it so you can edit room details

Go to structure page and change ceiling height to whatever you want it to be inside the tray area.

I tend to go based on heights of lumber required for span so 11.25" (2x12) higher than room you created this Fake room.

 

Now my method creates vertical "wall" inside the tray area where you drew cathedral ceiling to get to the tray ceiling height.

 

So fo yours you could do the same thing but might have to make another Fake room inside that one.

So this other fake room represents the Flat ceiling portion.

 

Then the "Ring" one that is under the "Cathedral" ceiling portion edit room structure page and UNCHECK flat roof and then the ceiling will go be sheetrock under rafters.

Not sure what it will do on inside portion where the rafters will be well above.

 

So maybe make ceiling planes for this slanted portion as you know the base and the "ridge" heigh from the normal room ceiling would be base height and the tray small portion ceiling height would be the ridge height.

 

Have to play with it to see what gives you what you want.

[Jo_Ann]

I do not understand what you want, from looking at your drawings,

 

but I think the "room within a room" is the best method to use, because it will create the framing in the attic, that you want.