Finally finished outpost
https://steamcommunity.com/sharedfiles/filedetails/?id=2834993836

Did some tests with my builder (creative mode) on another world; 8 meters is beyond the limit to club troll reach. Due to thinking only over 6 meters was needed initially, I had to dig out a.. pit around the pillars.. eh a bit early for a dedicated rock quarry but *shrug*.

Thanks again to everyone for their input and advice, helped clarify my thinking!