Deep-Dek^® Roof Deck

Create wide-open spaces with deep-fluted or smooth aesthetics

Support your design vision for clear spans with the versatility and strength of our longest spanning deck

Photo Credit: Architectural Imageworks, LLC

Achieve dramatic looks and impressive clear spans

Create expansive wide-open interior and exterior spaces with the dramatic aesthetics of Deep-Dek^®. The deep-fluted profile of Deep-Dek^® enables its impressive span and load capacities. Three depths are available in both standard and cellular configurations, creating a dramatic deep-fluted appearance or a smooth underside surface with subtle shadow lines. Standard and cellular profiles can include optional acoustical treatments to mitigate ambient noise.

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Standard Deep-Dek^® Roof Deck

Standard Deep-Dek^® roof deck is a single-cell (hat) unit that provides a support surface for various types of roofing materials. The strength of Deep-Dek^® steel decking ensures impressive span and overhang capabilities, making it ideally suited for long, open interior and exterior spaces.

Deep-Dek^® steel deck produces a deep-fluted look for a dramatic underside aesthetic. Deep-Dek^® and Deep-Dek® Acoustical roof decking eliminates unsightly side-lap screw penetrations.

Deep-Dek^® Acoustical roof deck combines sound-absorbing features and factory-applied coatings to achieve a desired finished ceiling aesthetic while meeting stringent acoustical and structural requirements.

Deep-Dek^® roof deck is available in lengths from 6 feet to 40 feet. Please check with a New Millennium facility near you for lengths outside these parameters. Our steel deck conforms to ASTM A1008/A1008M for uncoated and painted deck, and A653/A653M for galvanized deck. Our roof deck also is approved by UL, ULC and listed in the UL and ULC Fire Resistance Directories.

Refer to published tables for the minimum yield strength used for each steel deck type. Contact New Millennium for availability of higher yield strengths when required, or use our steel deck specification tool to view load tables with commonly available non-standard yield strengths and/or gages.

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Deep-Dek^® 4.5

Deep-Dek^® 4.5 Acoustical

Deep-Dek^® 6.0

Deep-Dek^® 6.0 Acoustical

Deep-Dek^® 7.5

Deep-Dek^® 7.5 Acoustical

Simplified installation with self-aligning nestable side-laps
Optional acoustical roof deck achieves NRC ratings as follows: type 4.5 at 0.70; type 6.0 at 0.75; type 7.5 at .80
Deep-Dek^® 4.5, 6.0 and 7.5 are ICC-approved

Cellular Deep-Dek^® Roof Deck

Cellular Deep-Dek^® is a double- or triple-cell (hat) metal deck unit with a liner panel that creates a support surface for various components. The strength of the profile of Cellular Deep-Dek^® roof deck provides impressive span and overhang capabilities, making it ideally suited for long, open interior and exterior spaces within steel structures.

Its liner panel, with self-aligning nestable side-laps, provides a finished ceiling aesthetic with concealed fasteners. Sound-absorbing features and factory-applied coatings combine to give Cellular Deep-Dek^® steel decking a desired finished ceiling aesthetic while meeting stringent acoustical and structural requirements.

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Deep-Dek^® 4.5 Cellular

Deep-Dek^® 4.5 Cellular Acoustical

Deep-Dek^® 6.0 Cellular

Deep-Dek^® 6.0 Cellular Acoustical

Deep-Dek^® 7.5 Cellular

Deep-Dek^® 7.5 Cellular Acoustical

Available as an acoustical deck with NRC ratings as follows: type 4.5 at 1.00; type 6.0 at 1.00; type 7.5 at 1.00
Cellular Deep-Dek^® 4.5, 6.0 and 7.5 are ICC-approved
Triple-cell (hat) units are also available for 36-inch cover width applications