12mm and 20mm bar diameter is missing in my RCDC how to add the in the existing list.. Please help. thanks
This sounds very odd to me.. If other diameters are there then it is a special case needs investigation. Before that, I would ask you to check one thing. There are 2 types of rebar notation used here. one is as per rebar diameter and the other is ASTM rebar number. Just check, if you have selected the ASTM rebar number option.
Go to Settings > Reinforcement settings. Now Right click on rebar diameter box and you will get a chance to change the rebar diameter format.
Hope this helps. Else, please create a service request.