Composite floor deck systems are strong and versatile

Composite Deck

Harness the power of concrete and steel with a composite floor system

Composite Deck
Composite deck gains its strength from the bond between concrete and steel

New Millennium engineers and manufactures a wide range of composite deck products and systems ideal for various project types. Available in numerous profiles and depths, composite deck meets the required certifications and is manufactured in accordance with the specifications of the Steel Deck Institute.

Find us in ARCAT Find us in MasterSpec
Deck Design Drawings
Standard Composite Deck

Standard composite deck has embossments in the vertical ribs that bond with the concrete slab to develop a composite floor system. Once the concrete cures, the resulting composite floor system provides superior strength and stiffness.

1.5CD, 1.5CDI Composite Deck
1.5CD, 1.5CDI Composite Deck Drawing
1.5CD, 1.5CDI Composite Deck Dimensions
  • Both available with rolled-in hanger tabs
  • 1.5CD available with nested side laps
  • 1.5CDI available with interlocking side laps (extended side laps provided upon request to facilitate screw installation)
1.5CDR Composite Deck
1.5CDR Composite Deck Drawing
1.5CDR Composite Deck Dimensions
2.0CD Composite Deck
2.0CD Composite Deck Drawing
2.0CD Composite Deck Dimensions
  • Available with rolled-in hanger tabs
  • Available with interlocking side laps (extended side laps provided upon request to facilitate screw installation)
3.0CD Composite Deck
3.0CD Composite Deck Drawing
3.0CD Composite Deck Dimensions
  • 1.5CD, 1.5CDI and 1.5CDR enable the designer to space the structural members to over 11’-0” on center without additional shoring
  • 2.0CD enables the designer to space the structural members to over 14’-0” on center without additional shoring
  • 3.0CD enables the designer to space the structural members to over 16’-0” on center without additional shoring
Cellular Composite Deck

Cellular floor deck with a continuous (underside) beaded liner panel allows for increased deck spans, increased clear spans (unshored) and increased cantilever spans over non-cellular types. It is available with an acoustical cellular deck option consisting of fiberglass insulation batts installed in the deck cells at the factory under controlled conditions.

1.5CFDC Composite Floor Deck Cellular
1.5CFDC Composite Floor Deck Cellular Drawing
1.5CFDC Composite Floor Deck Cellular Dimensions
1.5CFDCA Composite Floor Deck Cellular Acoustical
1.5CFDCA Composite Floor Deck Cellular Acoustical Drawing
1.5CFDCA Composite Floor Deck Cellular Acousticall Dimensions
2.0CFDC Composite Floor Deck Cellular
2.0CFDC Composite Floor Deck Cellular Drawing
2.0CFDC Composite Floor Deck Cellular Dimensions
2.0CFDCA Composite Floor Deck Cellular Acoustical
2.0CFDCA Composite Floor Deck Cellular Acoustical Drawing
2.0CFDCA Composite Floor Deck Cellular Acoustical Dimensions
3.0CFDC Composite Floor Deck Cellular
3.0CFDC Composite Floor Deck Cellular Drawing
3.0CFDC Composite Floor Deck Cellular Dimensions
3.0CFDCA Composite Floor Deck Cellular Acoustical
3.0CFDCA Composite Floor Deck Cellular Acoustical Drawing
3.0CFDCA Composite Floor Deck Cellular Acoustical Dimensions
  • 1.5CFDC and 1.5CFDCA are also available in 36½-inch cover widths
  • 2.0CFDC, 2.0CFDCA, 3.0CFDC and 3.0CFDCA are also available in 36-inch cover widths
  • 1.5CFDCA, 2.0CFDCA and 3.0CFDCA available with optional plastic lath to protect the acoustical properties of the deck when painting in the field
Steel deck design tools

Our deck design tools make deck specification easier and help you find the most cost-effective deck for your application.

Design now
Credit hour: Reduce costs

Earn credit as you learn to reduce project cost, improve delivery and avoid the risks of incomplete project drawings.

Earn credit
Multi-story

When combined with composite joists, standard composite deck can create long spans that are optimal for multi-story projects.

Learn more
Case Study
Nineteenth-century church exterior
New steel in a 186-year-old church

Steel joists and 1.5CD standard composite deck help turn 19th century church into condos.

Read more
Cover of Steel Joist Brochure
Steel deck brochure

Get our brochure for complete, up-to-date information about our steel roof deck and related components.

Download now

Building a better steel experience