Handrail Bracket Saddle Styles “U” Style handrail brackets have universal saddle for use with round, square or extruded handrails. “D” & “E” style brackets have separate part numbers for brackets with flat saddles. Updated on June 12, 2018 Was this article helpful? Yes No Related Articles Measurement Worksheet for Laying out Stair Rail Fabrication Can you bend 4.00″ OD aluminum tube? How close can 2 EZ Sleeves sit next to each other? What is the difference between wrought iron and cast iron? What is the difference between welding, brazing and soldering of aluminum? What is the difference between Pipe and Tube?