capitaldesigns Posted January 29, 2020 Share Posted January 29, 2020 I am working on a practice plan before working on the real project. I inputted the grade to be 21" lower than the first floor sub-floor. In section and elevation views the grade is shown 3'-5" below the first floor sub-floor. Under terrain specification it shows sub-floor height above terrain is 21". Is there some other setting pushing the grade down to 3'-5" below the first floor sub-floor ? Thanks, Mike Basement Plan.plan Link to comment Share on other sites More sharing options...
capitaldesigns Posted January 29, 2020 Author Share Posted January 29, 2020 I just tried that. I deleted the terrain that was placed on the foundation level and drew it on the first floor level. This time instead of placing the grade 3'-5" below the sub-floor it placed it 12'-5" below the first floor sub-floor. I wanted the upper grade o be 21" below the first floor sub-floor. It is placing the grade 21" below the basement finish slab. To get the lower grade to be level with the basement finish slab I need to place the grade -111" below the first floor sub-floor. The basement slab is drawn 132" below the first floor finish floor, not -111". To get the upper grade to be 21" below the first floor sub-floor I had to show the grade as 0" below the first floor sub-floor. When I look at the structure DBX under room specification it shows that 0" elevation is still the first floor sub-floor. So why do I have to call out the upper grade to be 0" below the first floor sub-floor to get it t show up in section view as 21" below grade ? Thank you, Mike Link to comment Share on other sites More sharing options...
Alaskan_Son Posted January 29, 2020 Share Posted January 29, 2020 Sorry, I spoke much too quickly earlier and didn't study your plan well enough so I just deleted my statement. It doesn't matter what floor you put the terrain on. It should behave the same and it should always reference Floor 1. Your discrepancy comes from your elevation line settings. That 21" offset is referencing a 0" elevation height. The highest point on your terrain however is -18". Link to comment Share on other sites More sharing options...
capitaldesigns Posted January 29, 2020 Author Share Posted January 29, 2020 I'm sure you are correct. When I first place the terrain it shows it at 21" below the first floor sub-floor. After I place the elevation regions for the upper and lower pads that when everything screwed up. Even though I selected the upper elevation region and called it out to be 21" below the first floor sub-floor CA showed the grade as 12'-5" below the sub-floor. I had to show it as 0" below the sub-floor in order for it to show correctly as 2" below the sub-floor. Link to comment Share on other sites More sharing options...
capitaldesigns Posted January 29, 2020 Author Share Posted January 29, 2020 Hi Michael. I'm not sure what you mean. I am trying out the terrain feature for the first time. All of the projects I have drawn with CA has been on flat pads and none of them had basements. Link to comment Share on other sites More sharing options...
Alaskan_Son Posted January 29, 2020 Share Posted January 29, 2020 Here. See if this helps... Link to comment Share on other sites More sharing options...
capitaldesigns Posted January 29, 2020 Author Share Posted January 29, 2020 I get it now. The terrain perimeter at 21" below the first floor sub-floor become the 0" elevation for the elevation lines, regions and points I place in the drawings. I thought everything was measured from the first floor sub-floor height. Thank You, Michael Link to comment Share on other sites More sharing options...
glennw Posted January 29, 2020 Share Posted January 29, 2020 Quote I thought everything was measured from the first floor sub-floor height. It can be. But to do that, you need to set the Sub Floor Height Above Terrain to zero. You can then directly relate the terrain heights to the first floor zero height. ie, with a Sub Floor Height Above Terrain set at zero, an Elevation Line of 24" will be 24" above the zero floor level. Likewise, a Sub Floor Height Above Terrain set at zero, an Elevation Line of -24" will be 24" below the zero floor level. There are several ways to set heights in relation to the terrain. You can even use real word heights for both the terrain and the floor heights. 1 Link to comment Share on other sites More sharing options...
builtright3 Posted February 4, 2020 Share Posted February 4, 2020 Is the grade level and the terrain level two different things? When I put the story pole in the exterior elevation, it doesn't line up with the terrain height. I never used the story pole tool before so this is new to me. Link to comment Share on other sites More sharing options...
Kbird1 Posted February 4, 2020 Share Posted February 4, 2020 1 hour ago, builtright3 said: Is the grade level and the terrain level two different things? When I put the story pole in the exterior elevation, it doesn't line up with the terrain height. I never used the story pole tool before so this is new to me. You can set it to match the Terrain Perimeter Height eg if it is 18" below the Subfloor...... Set the Grade Level Marker to -18 ( negative 18") instead of Zero and make sure to reference the Grade Level Marker not the 1st Floor Subfloor. M. Link to comment Share on other sites More sharing options...
builtright3 Posted February 4, 2020 Share Posted February 4, 2020 1 hour ago, Kbird1 said: You can set it to match the Terrain Perimeter Height eg if it is 18" below the Subfloor...... Set the Grade Level Marker to -18 ( negative 18") instead of Zero and make sure to reference the Grade Level Marker not the 1st Floor Subfloor. M. Thank perfect, Thank You!! Link to comment Share on other sites More sharing options...
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