NW32® and N Deck
Span large spaces and longer-spans economically
N Deck is available in standard, cellular, and inverted profiles
Types NW32® and N are 3-inch steel roof deck profiles that make large open spaces possible in structures such as gymnasiums, minimizing the number of structural supporting members required. Choose from 32-inch to 24-inch coverage widths, in standard, cellular, and acoustical configurations. NW32® steel deck is available with nested or interlocking side-laps. Standard N deck is available with nested side-laps only. All NW32® and N deck variations are available with acoustical options.
Available in lengths from 6 feet to 40 feet. Check with your local New Millennium facility for lengths outside these parameters. NW32® conforms to ASTM A1008/A1008M for uncoated and painted deck, and A653/A653M for galvanized deck. Approved by UL and ULC and listed in the UL and ULC Fire Resistance Directories.
NW32® Deck
More than just a wider version of N deck, NW32® introduces several benefits. At 32 inches wide, NW32® is 33 percent wider than Standard N roof deck. Coverage is achieved with fewer panels, which means less labor, lower costs, and faster installation.
NW32® has yield strength up to 80 ksi. Refer to our Steel Roof and Floor Deck Design Guide for the minimum yield strength used for each deck type. Contact New Millennium for availability of higher yield strengths when required or use our deck specification tool to view load tables with commonly available non-standard yield strengths and/or gages.
NW32® Deck
NW32A® Deck
NW32I® Deck
NW32IA® Deck
NW32® Deck
- Available with nested side-laps or interlocking side-laps
- Available as an acoustical steel deck manufactured with perforations in the vertical ribs, type NW32A® and NW32IA® having an NRC rating of 0.70 to 0.95 when used with rigid roofing insulation
- All NW32® deck is FM-approved for use as a component in Classes 1-60, 1-75 and 1-90 wind uplift construction
- All NW32® deck types are UL-, FM- and ICC-approved
Standard N Deck
Standard N Deck
Standard N Deck Acoustical
N-Dek
NA-Dek
Standard N Deck
- N, NA, N-Dek and NA-Dek available with nested side-laps
- Available as an acoustical deck manufactured with perforations in the vertical ribs, type NA having an NRC rating of 0.60 to 0.95 when used with rigid roofing insulation
- N and NA-Dek are FM-approved for use as a component in Classes 1-60, 1-75 and 1-90 wind uplift construction
- N and N-Dek are UL-, FM- and ICC-approved. NA-Dek is FM- and ICC-approved
Cellular N Deck
N-Dek Cellular is a 3-inch-deep, cellular structural roof deck unit that provides a support surface for various types of roofing materials. Its liner panel, with self-aligning nestable side-laps, provides a finished ceiling aesthetic with concealed fasteners. N-Dek Cellular Acoustical features a perforated liner panel that provides an NRC value of 0.95 with rigid insulation. Fiberglass insulation batts are installed in the deck cells at the factory under controlled conditions.
NW32® Cellular (32.5 CW)
NW32® Cellular Acoustical (32.5 CW)
- Available in seven steel gage thicknesses including various combinations of top and bottom section thicknesses (see load tables)
- Available with optional plastic lath to protect the acoustical properties of the deck when painting in the field
- Top and bottom sections are available with galvanized finishes in a variety of coating weight options. Only the exposed side of bottom sections are available with an additional gray primer
- Types NW32® Cellular and NW32® Cellular Acoustical are ICC-certified
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