Division 05 Metals covers a material that has taken on a very large role in most construction projects. From the structural steel columns and beams that constitute the skeletal frame to the bent and formed metals used to create roofs, floors, stairs, or decorative fabrications, metals are incorporated throughout the entire building.  Today’s project may include a metal or aluminum curtain wall, metal studs for the interior spaces, stainless steel hand rails, or steel pipe guards at the loading dock.  The variety and versatility of metal is unlimited.  Metal is also considered a “green” material because of the recycled content used during manufacturing and its ability to be recycled once it is no longer needed.