Steel Stiffened Doors

Core Type
Click for Data Sheet
Steel Stiffened
Fiberglass Batt
Core Const. 22 GA Steel Stiffened, 5-1/4" apart
Core Density 1.5 lb.
R-Factor 5.25
U-Value .19
Service Temp -65° to 200° (F)
Min. STC STC 39
Fire Rating See Fire Rated
Bullet Resistant UL Levels 1-8 See Bullet Resistant

NAAMM / HMMA 860 (Welded 3" OC, Filled Seamless)
861 (Continuous Weld, Seamless Edge)
SDI A250.8-2003
Level / Model
II/1, III/1, IV/1 (Open Seam Edge)
II/2, III/2 & 3, IV/2 (Seamless Edge)
ANSI A250.5 4,000,000 Cycles
Door Thickness 1-3/4"
Face Skins 18, 16, 14, or 12 GA
Material Options 1. Cold Rolled Steel
2. Galvanized A-60 or G-90
Door Edges Beveled, 1/8" in 2"
Edge Construction Options 1. Welded 3" OC, Seamless
2. Continuous Welded, Seamless
3. Open Seam
See Vertical Door Edge Options
Top + Bottom Channels 16 GA
See Door Top + Bottom Details
Hinge Reinforcements 7 GA, 1-1/2" x 10"
Lock Reinforcements 11 GA or equal # threads
Closer Reinforcements 14 or 12 GA
Standard Primer (Gray) EPA Approved, Alkyd, Zinc Compound
Finish Options See Prime Painted
Quick Ship 1, 3, 5 or 10-Day Options. See Quick Ship

NOTE: Above door data varies depending on specific design criteria

Helpful Information

Environmental Data

As encapsulated door core materials, neither Fiberglass nor Cotton Batt pose health hazards or emit toxic gases. Cotton Batt insulation is made from 100% recycled materials that are bio-degradable and recyclable. During fire, no toxic gasses are produced by either material, and both are classified as fire retardant.

All resins and bonding agents utilized in fabrication are low VOC / environmentally friendly. The long life cycle and recyclability of steel creates a truly sustainable product. See LEED Information.