Concrete vs steel columns for elevated deck
I am trying to figure out the easiest way to build the columns for balcony from the attached picture. In the picture the columns are shown with brick finish but they be finsidhed with stucco in order to match and blend im with the balcony walls.
This design will be reviewed and stamped by and engineer but the execution will be a DIY project.
I have never done anything similar before so any comments are appreciated.
The balcony area is about 32×6 ft and 9ft high. The colums are cca 12″x12″ wide. The balcony deck structure will be done with light gauge steel framing.
The project requires to use either poured concrete pillars or steel columns which will be covered with EPS foam and stuccoed.
I am inclined to use steel columns rather than concrete because the project is on slope and the heavy weight of the concrete posts may lead to non-uniform settling over time.
The steel columns will need to be sunk about 4ft in a concrete base and height of the brackets attaching to the deck will have to be adjustable to for varaiation in height during installation or settling.
Here is the order of operations I envision:
Dig holes for the columns concrete base
Place steel columns in holes together with required rebard around, etc.
Adjust column height and alignment. Leave 1/2″ room for shimming at the top of the columns for future height adjustment.
Brace and support columns with 2x lumber.
Build deck structure and attach it to the house and columns.
Pour concrete base and verify height and alignment of columns before curing of concrete.
Perform final height adjustments/shimming and finalize all the deck attchements.
Attach railings/parapet walls and finish the surfaces are required.
Does this sound ok? Did I miss anything or do you see any operation that requires special attention?