*Left of fulcrum A *=================== *Long beam at B, 0.23t at 1.65m from fulcrum A m4=0.23*1.65 message Long beam (B) on left moment = //[m4]// m-tonnes *Cross pieces to (B) 0.204t at 0.825m m5=0.204*0.825 message Cross pieces to (B) on left moment = //[m5]// m-tonnes *SM support table 0.334t (334kg) underframe, 0.4t top frame.