Portland Millwork Inc is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Doors & Windows
• Windows Wholesale & Manufacturers

North American Industry Classification System (NAICS) Categories:

• Metal Window And Door Manufacturing > Window Manufacturers
• Lumber, Plywood, Millwork, And Wood Panel Merchant Wholesalers > Doors, Windows & Skylights > Windows
• Home Centers > Garage, Door & Window Products

Standard Industry Classification (SIC) Categories:

• Metal Doors, Sash, & Trim > Window Manufacturers
• Lumber, Plywood, & Millwork > Doors, Windows & Skylights > Windows
• Lumber & Other Building Materials > Garage, Door & Window Products