I looked online and watch videos too. Some people said wood or core poles to help with stone building. I did a 2 1x2 stone blocks with core wood beam in the middle and used arches for support. Also put core wood beams half in the stone flooring. Starting on the second floor. I notice building up with pillar changes from green to orange before I stopped before added arches or flooring. The core wood beam is green but afraid building any more as I feel I get frustrated when everything falls apart. Instead of core wood, would I need iron wood beams or will I have the same issue. Arch has 2 spaces between them. Trying to figure how to build up without stuff breaking. Everything is flat ground while the core wood bean on the ground while stone flooring built around it. I am using 2x4 block walls or is that wrong type to use for building side walls? I notice stone towers use 1x2 blocks. Trying to use bigger block to save stone.
First floor was going to do crafting with storage.
Second floor is bed and items to boost rested bonus
Third floor was going to be portal room.