05 20 00 Metal Joists 05 30 00 Metal Decking 05 50 00 Metal Fabrications 05 51 00 Metal Stairs 05 52 00 Metal Railings 05 70 00 Decorative Metal 05 05 00 Common Work Results for Metals 05 55 00 Metal Stair Treads and Nosings 05 10 00 Structural Metal Framing05