Huckleberry

That was it, thank you very much for the help. I will need to show attachment of the slab to existing foundation. I guess I can just draw that.

OK, great thank you. How do I get the slab lower where the footings match but floors are offset about 24 inches?

Addition is labeled Master Bedroom. ADDITION FLOOR PLAN copy.plan

Sorry, I do not know how to post the plan file. Drag a copy of my saved file after closing Pro? Thank you for your help.

I selected the new room clicked the monolithic slab but when I change the stem wall heights, they change through out the structure, new room and existing.

I am learning how to use home designer pro for a bedroom addition. I am wanting to extend a gable out to accommodate the addition but on a slab instead of on a footing with a stem wall. I was able to do this and get the roof offset to a lower level as I wanted but, the stem walls seem to change through out the house when I change the addition room. Existing home is on footings with a stem wall, I want the addition at a slightly lower level, roof included, for a better look and so we walk straight out into the yard for this room close to ground level. Any help would be appreciated.