Note the resource needed. Says Building Materials. Via Code. Building materials are as follows:
if(GetTag(oItem) == "cnrBranchOak"){return 0.5;}
if(GetTag(oItem) == "cnrBranchMah"){return 0.7;}
if(GetTag(oItem) == "cnrBranchHic"){return 0.9;}
if(GetTag(oItem) == "cnrplankhic"){return 1.7;}
if(GetTag(oItem) == "cnrplankmah"){return 1.5;}
if(GetTag(oItem) == "cnrPlankOak"){return 1.3;}
if(GetTag(oItem) == "chs_stone"){return 1.1;}
if(GetTag(oItem) == "cnrNuggetCopp"){return 1.1;}
if(GetTag(oItem) == "chs_brick"){return 3.0;}
if(GetTag(oItem) == "cnr_plywood2x5"){return 7.0;}
if(GetTag(oItem) == "cnr_plywood2x41"){return 5.0;}
if(GetTag(oItem) == "cnr_plywood2x2"){return 3.8;}
if(GetTag(oItem) == "cnr_plywood2x4"){return 4.5;}
if(GetTag(oItem) == "granitemold"){return 2.8;}