Jul 24 In: rpsteelBy: Rp Steel Construction Date: 24/07/2017 0 1367 Constructed a new staircase in Oxford for Buildbase. Old wooden staircase was rotten away.Share This Article : Previous PostExtension steel support. Roof truss. Also ceiling support inside the house. Next PostRadlett, Walting Street Extension being built. Had to build a frame to support the upper bit of the house. Then put the roof truss together and connected the two.