Architecture Supplies

Standard Doors & FramesSteel Doors & Frames

Standards this line is built to

The designations below are cited by the products on this page. A specification is written in these, not in product names, so each one is set out with what it governs. Progress Horizon Trading supplies this line as an authorized distributor across Saudi Arabia.

  • ANSI/SDI A250.8

    The recommended specification for standard steel doors and frames: gauge, construction and grade. Often still called SDI-100.

  • ANSI/SDI A250.4

    The physical endurance test for steel doors and frames: the cycle count behind a door's stated grade.

  • NFPA 80

    Not a test but a compliance standard: how fire doors are installed, inspected and maintained, including the annual inspection and the requirement that every fire door self-closes and positively latches.

  • UL 10C

    The positive pressure fire test for door assemblies. Positive pressure drives hot gas through any gap between door and frame, which makes it the more demanding test and the one North American codes now call for.

  • ANSI/BHMA A156 series

    The American builders hardware standards, each part covering one product family and grading it Grade 1 to 3 by cycle testing.

  • ASTM A653

    Hot-dip zinc-coated (galvanized) steel sheet, with the coating designations that set corrosion life.

  • SASO standards

    The Saudi Standards, Metrology and Quality Organization requirements: what a product must meet to be placed on the Saudi market.

  • ASTM A240

    Chromium and chromium-nickel stainless steel plate, sheet and strip: the grade designations behind 304 and 316.