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 Alpha
Steel Stiffened Core Door
Features
- Superior structural performance for high frequency door use applications.
- Tested to 4 million cycles
- Large selection of elevations to choose from
- Available built-to-order up to 60" widths and 144" heights (call factory for details)
- For Alpha Door applications, see:
Door Selection Tool
- For specifications, see:
Alpha Door Specifications
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Door Construction
| NAAMM / HMMA |
860 (Welded 3” OC, Filled Seamless)
861 (Continuous Weld, Seamless Edge) |
| SDI A250.8-2003 |
II/1, III/1, IV/1 (Open Seam Edge) |
| Level / Model |
II/2, III/2 & 3, IV/2 (Seamless Edge) |
| ANSI A250.5 |
4,000,000 Cycles (94 cycle test) |
| Door Thickness |
1-3/4” |
| Face Skins |
18, 16, or 14 GA |
| Material Options |
1. Cold Rolled Steel
2. Galvanized A-60 or G-90 |
| Door Edges |
Beveled |
| Edge Construction Options |
1. Welded 3” OC, Welded Seamless
2. Continuous Weld, Seamless
3. Open Seam |
| Core |
22 or 20 GA Steel Stiffened, 5-1/4” apart |
| Insulation |
Fiberglass, 1.5 lb. Density
R Factor = 5.25 / U-Value = .19 |
| 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 |
Alkyd (Gray), EPA Approved |
| Fire Label Rating |
See Fire Rated Doors + Frames Section |
| Finish Options |
See Finish Options Section |
| Stainless Steel |
See Stainless Steel Products Section |
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