Whitley Steel Building Supply is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Building Materials & Supplies
• Steel Buildings
• Steel Distributors & Service Centers
• Welding Services
• Metal Roofing & Siding
• Roofing Contractors & Consultants

North American Industry Classification System (NAICS) Categories:

• Structural Steel And Precast Concrete Contractors > Steel Work > Steel Buildings
• Roofing Contractors > Roofing Work > Roofing Consultants
• Roofing Contractors > Roofing Work > Roofing Contractors & Consultants
• Metal Service Centers And Other Metal Merchant Wholesalers > Iron & Steel (Ferrous) Products > Steel Distributors
• Other Building Material Dealers > Floors & Roofing Materials & Supplies > Metal Roofing & Siding
• Commercial And Industrial Machinery And Equipment (Except Automotive And Electronic) Repair And Maintenance

Standard Industry Classification (SIC) Categories:

• Roofing, Siding, And Sheet Metal Work > Roofing Work > Roofing Consultants
• Roofing, Siding, And Sheet Metal Work > Roofing Work > Roofing Contractors
• Structural Steel Erection > Steel Work > Steel Buildings
• Metals Service Centers & Offices > Iron & Steel (Ferrous) Products > Steel Distributors
• Lumber & Other Building Materials > Floors & Roofing Materials & Supplies > Metal Roofing & Siding
• Welding Repair