This post is to illustrate on the easy method to add a rc kerb for staircase railing detail in Revit, Above shown the Detail of the Railing
Step1 : Before Editing the Railing Structure, First We need to do a simple profile of the intended design of RC kerb (using "Profile Family") and Load into the Project Environment
Step 2 : Select the railing , (if is built in railing , suggest to duplicate type before doing any editing)
and press on "Edit Type"
Step 3 : Go to "Railing Structure (Non-Continuous) " press Edit
Step 4: Press "Insert" at the bottom , and here you are able to set the rc kerb offset & height according , on the Profile change it to the "rc kerb profile" which loaded into the project environment earlier.
Thank you !