3″ Type N Roof Deck
Type N Roof Deck is 3″ deep. Also known as deep rib, this structural metal roof deck provides a support surface for various types of roofing materials while its deep rib profile allows this roof deck to span further distances between roofing supports.
Description
Roof deck products act alone in transferring horizontal and vertical loads into the building frame. Roof Deck does not work compositely with other building materials.
About O’Donnell Metal Deck:
Why wait? Job site change orders, problems, damaged deck, or new jobs. Whether you need N decking or any other products for concrete or steel roof deck, you can count on O’Donnell Metal Deck. We are committed to providing the fastest and easiest service for metal decking. We offer fast same and next day delivery of our 3.0 N Deck to the East Coast — proudly supplying projects in Maryland, Washington DC, Virginia, West Virginia, Ohio, Tennessee, North Carolina, South Carolina, Delaware, New York, New Jersey, Pennsylvania & across the country.
Fast Metal Deck Shop Drawings:
Our ability to provide fast steel deck approvals has made us one of the best metal deck supply and detailing companies in the United States. Our process begins with fast and direct communication with our customers and stakeholders to ensure maximum productivity and timeliness. The metal deck shop drawing process is as outlined below.
Approval Drawings
Our team gathers, reviews and interprets information from the contract bid documents.
EOR Review
Our steel deck layout is submitted to the design team for missing information or discrepancies to solve potential issues.
BOM Fabrication
Once approved by the engineer, our detailers submit their bills of material to be fabricated.
Field Use Plans
We'll issue easy to read structural steel erection plans for field use to save installation time.
Learn More about Metal Deck Shop Drawings.
N Deck Gauges:
N Deck Finishes:
Galvanized G-60 zinc coated steel is the standard in the deck industry.
Galvanized G-90 is typically specified for exterior applications or project specific needs.
PTD or primer painted is an impermanent, provisional coating and is gray on top and bottom.
Deck Options:
Hanger Tabs:
Hanger tabs are designed for the support of ceilings and you should consult your engineer for individual allowable loads on single hanger tabs.
3" N Acoustical Roof Deck:
3" Roof Deck is available as 3" acoustical roof decking. Acoustical N Deck provides sound reduction where the under side of the deck is exposed to the interior. Our acoustical Type N roof deck is made by perforating the flutes of a standard 3" roof deck profile.
3" N Cellular Deck:
Type "N" cellular roof deck is utilized in exposed ceiling areas where a flat bottom deck is desired for aesthetic purposes. This option can be combined with or without acoustical perforations in the flutes of the deck.
Certifications
SDI Members:
We only supply products certified by SDI members that meet the the strict standards for engineering, design, manufacturing and usage of steel decks.
Made in America:
Our products are made with US made steel. When mill certificates are required, we can provide you the material's physical and chemical properties. Contact Us for more information.
UL Classified:
SDI Recommeneded Spans:
Contact us for specific product submittals and load tables
| Recommended Maximum Spans for Construction and Maintenance Loads Standard | ||||||
|---|---|---|---|---|---|---|
| Type | Span Conditon | Span | Max. Recommended Spans Roof Deck Cantilever | |||
| Ft.-In. | Meters | Ft.-In. | Meters | |||
| N DECK | 22ga. | 1 | 11'-0" | 3.35 m | 3'-5" | 1.05 m |
| 22ga. | 2 or more | 13'-0" | 3.95 m | |||
| 20ga. | 1 | 12'-6" | 3.80 m | 3'-11" | 1.20 m | |
| 20ga. | 2 or more | 14'-8" | 4.45 m | |||
| 18ga. | 1 | 15'-0" | 4.55 m | 4'-9" | 1.45 m | |
| 18ga. | 2 or more | 17'-8" | 5.40 m | |||
Construction and maintenance loads:
SPANS are governed by a maximum stress of 26 ksi (180 MPa) and a maximum deflection of L/240 with a 200-pound (0.89 kN) concentrated load at midspan on a 1'-0" (300mm) wide section of deck. If the designer contemplates loads of greater magnitude, spans shall be decreased or the thickness of the steel deck increased as required. All loads shall be distributed by appropriate means to prevent damage to the completed assembly during construction.
N Deck Attachment Pattern:
Your project Engineer will determine your attachment requirements for your design loads, building code and project requirements. The following standard 3" N Deck attachment pattern has been provided as a minimum recommendation for the product specified. The attachments should be made to from deck to support, deck sidelap to deck sidelap and seck to perimeter supports.
| SPECIFICATIONS | DETAIL |
|---|---|
| Gauges | 16, 18, 20, 22 |
| Height | 3" |
| Comparable Names | Type N, Deep Rib, 3DR, 3 N |
| Width | 24" |
| Finish | Prime Painted, Galvanized G-60, Galvanized G-90 |
