Steel Stiffened Doors

Standards

  • HMMA 861 - Vertically Steel Stiffened Hollow Metal Door
  • ANSI A250.4 - Physical Endurance  Levels of Doors & Frames
    • Exceeds minimum requirements for Level A (4 million cycles)
  • ANSI A250.6 - Recommended Practice for Hardware Reinforcing
  • ANSI A250.8/SDI 100 - Specifications for Standard Steel Doors & Frames
  • ANSI A250.10 - Test Procedure & Acceptance Criteria for Prime Painted Steel

Fire Rating

  • UL 10C, UL 9, UL 1784
  • Up to 3-Hour

Sound (STC) Rating

  • ASTM E90, ASTM E413, ASTM E1332
  • Consult Tech Data for additional information
  • 18 Gauge (0.042 min) Door
    • STC 33 with Seal Set #N1
    • STC 41 with Seal Set #N2
    • STC 41 with Seal Set #N3
    • STC 34 with Seal Set #D1
    • STC 37 with Seal Set #D3
  • 16 Gauge (0.053 min) Door
    • STC 33 with Seal Set #N1
    • STC 42 with Seal Set #N2
    • STC 42 with Seal Set #N3
  • 14 Gauge (0.067 min) Door
    • STC 30 with Seal Set #N1
    • STC 45 with Seal Set #N2
    • STC 47 with Seal Set #N3

Thermal Rating

  • ASTM C1363, ASTM E1423, ASTM EC1199, SDI 113
  • Flush 18 Gauge (0.042 min) Door - R-Value = 1.75, U-Factor = 0.57
  • Flush 16 Gauge (0.053 min) Door - R-Value = 1.71, U-Factor = 0.58
  • Flush 14 Gauge (0.067 min) Door - R-Value = 1.78, U-Factor = 0.56

Construction

  • Maximum Size: 5'-0" x 10'-0" Nominal
    • Oversize Doors Avaiable
  • Core
    • 22 Gauge (0.026 min) Steel Stiffeners Spot Welded to Face Sheets
      • Additional Stiffener Gauges Available Upon Request
    • Stiffeners are Equally Spaced With 6" Between Each Set
    • 2.5 lb Density Mineral Fiber Between Stiffeners
  • Skin Options
    • 18 Gauge (0.042 min) - ANSI A250.8/SDI 100 Level 2 (Standard Duty)
    • 16 Gauge (0.053 min) - ANSI A250.8/SDI 100 Level 3 (Heavy Duty)
    • 14 Gauge (0.067 min) - ANSI A250.8/SDI 100 Level 4 (Extra Heavy Duty)
    • 12 Gauge (0.092 min) - ANSI A250.8/SDI 100 Level 4 (Extra Heavy Duty)
  • Material Options
    • Cold Rolled Steel - ASTM A1008
    • A60 Galvannealed - ASTM A653
    • G90 Galvanized - ASTM A653 (not recommended)
    • Stainless Steel Type 304 (#4 Finish)
    • Stainless Steel Type 316 (#4 Finish)
  • Edge Type Options
    • Bevel Hinge & Lock Edge 1/8" over 2" (standard)
    • Square Edge
  • Edge Seam Options
    • Seamless - Bondo (Standard) - ANSI A250.8/SDI 100 Model 2
    • Seamless - Continuous Welded (Optional) - ANSI A250.8/SDI 100 Model 2
    • Open Seam  (Optional) - ANSI A250.8/SDI 100 Model 1
  • Top Channel
    • 16 Gauge (0.053 min)
    • Inverted (standard), Flush (optional), Water Tight Seal (optional)
    • Projection Welded
  • Bottom Channel
    • 16 Gauge (0.053 min)
    • Inverted (standard), Flush (optional)
    • Projection Welded
    • Weep Hole Provided
  • Reinforcements
    • Hinge - 7 Gauge (0.167 min)
    • Cylindrical Lock (Govt. 161) - 16 Gauge (0.053 min)
    • Mortise Lock (Govt. 86) - 11 Gauge (0.108 min)
    • Flush Bolts - 11 Gauge (0.108 min)
    • Surface Bolts - 14 Gauge (0.067 min)
    • Surface Closer - 14 Gauge (0.067 min)
    • Surface Holder/Stop - 14 Gauge (0.067 min)
    • Pull Plates/Bars - 14 Gauge (0.067 min)
    • Surface Applied Exit Devices - 14 Gauge (0.067 min)
    • Pivots - 7 Gauge (0.167 min)