What is Non-Composite Form Deck?

As a reputable and trusted metal floor decking company, our non-composite floor deck (also known as form deck, pan deck, or Q deck) experts specialize in providing innovative and reliable floor decking options that cater to a wide range of construction needs. Whether you're planning a commercial, industrial, or multi-story project, understanding the advantages and applications of non-composite floor deck will undoubtedly contribute to making informed decisions for your construction endeavors. 

Join us as we uncover the fundamental aspects of non-composite floor deck and discover how Oates Metal Deck can be your go-to partner for achieving superior results in your construction projects.

Understanding Floor Decking Systems

Floor systems play a critical role in modern construction, providing structural support, stability, and functionality to buildings and other structures. Floor decking systems are designed to bear the weight of occupants, furnishings, and equipment while also withstanding various loads and forces imposed on them over time. 

Composite Floor Deck

Composite floor decking is a type of decking typically installed over steel beams, steel joists, or concrete beams, serving as the foundation for concrete pour applications. With galvanized panels featuring embossments on their inner face, the composite floor deck provides a strong bond with the concrete, becoming an integral part of the slab. 

Non-Composite Floor Deck

Non-composite floor deck, also referred to as form decking, is a widely used solution in normal and lightweight concrete pour applications. These galvanized profiles serve as versatile forms or pans for the concrete during the pouring process, providing essential support during curing. Non-composite floor deck panels, in contrast to their composite counterparts, possess seamless corrugations that allow the cured slab to undergo minor shifts above the panel, all while upholding its structural integrity and strength.

Non-Composite Form Decks vs. Composite Floor Decks

The choice between non-composite and composite floor decks depends on various factors, including structural requirements, project specifications, and construction timeline.

Here's a brief comparison of the two-floor decking systems:

  • Load-Bearing Capacity: After the deck is installed, the rebar is laid, and the concrete is cured, the overall load capacity of a composite floor system is greater than a form deck floor system. This is due to the embossments in the composite deck that prevent the concrete from sliding within the flutes of the deck, also known as the composite action. Non-composite deck systems have a lower load capacity but are well-suited for many applications.
  • Construction Speed and Cost: Both composite and non-composite form deck can improve installment speed and cost by eliminating the need for temporary forms.
  • Application: The engineer of record or project designer will often call for form deck in areas where heavy machinery will travel across the concrete slab or any other application where the slab sliding, expansion, or contraction within the deck is desired. Composite deck is more commonly applied in fixed load settings. 

Profiles for Non-Composite Form Deck Panels

Non-composite floor decks offer a range of profiles, each designed to meet specific construction requirements and load capacities. These profiles play a vital role in providing a permanent form for concrete pour.

9/16" Form Deck

9 16 non composite floor deck

The 9/16" form deck, also referred to as 0.6C or 0.6FD, is a popular choice for lightweight concrete applications. It features a corrugated design with a depth of 9/16 inch (approximately 14 mm). This profile provides sufficient strength and support for the wet concrete during construction while keeping the overall weight of the floor system low. It is often used in projects where minimizing dead loads is essential, such as in mezzanines and low-rise structures.

1" Form Deck


The 1" form deck, denoted by various designations such as 1.0C, 1.0FD, HD, or TF-75, offers a deeper corrugation depth of 1 inch (approximately 25 mm). This profile provides increased load-carrying capacity, making it suitable for a wider range of applications, including commercial buildings, parking garages, and industrial facilities where the steel sheets are installed over framing beams or steel joists. The 1" form deck is known for its durability and versatility, making it a common choice for medium to heavy-duty construction projects.

1-1/2" Form Deck


The 1-1/2" form deck, represented by the designation 1.5C or 1.5FD, features a corrugation depth of 1-1/2 inches (approximately 38 mm). This profile offers further enhanced load-carrying capacity and structural performance compared to shallower corrugations. It is commonly used in projects requiring higher load demands, such as large commercial buildings and multi-story structures.

2" Form Deck


The 2" form deck, represented by the designation 2.0C or 2.0FD, features a corrugation depth of 2 inches (approximately 51 mm), providing substantial strength and rigidity. This profile is well-suited for heavy-duty applications, including industrial facilities, manufacturing plants, and structures with significant equipment loads. Its ability to withstand heavier loads makes it a reliable choice for large-scale projects.

3" Form Deck


The 3" form deck, represented by the designation 3.0C or 3.0FD, boasts a deeper corrugation depth of 3 inches (approximately 76 mm), making it the most robust profile in non-composite floor decking solutions. Its high load-carrying capacity and superior structural integrity make it suitable for the most demanding construction projects, such as high-rise buildings, stadiums, and warehouses.

Advantages of Non-Composite Floor Deck

Non-composite floor decks offer several advantages that make them a popular choice in the construction industry. These deck profiles, also known as form decking, serve as formwork during construction and provide additional support to the structure once the concrete has cured. 


Form deck eliminates the need for temporary forms and the vertical and horizontal bracing that come along with it. This simplicity translates to lower material and installation costs, making them an attractive option for projects with budget constraints.

Rapid Installation

Non-composite floor decks are quick and easy to install, contributing to faster construction timelines. The decking sheets are typically lightweight and easy to handle, reducing the labor and time required for installation. Further, the deck acts as a safe working platform after it’s fastened to the supports.


Non-composite floor decks are versatile and can be applied to a wide range of construction projects. They are well-suited for various building types, including low-rise structures, parking garages, mezzanines, and roof decks. The ability to adapt to different project requirements makes non-composite decks a flexible choice for architects and engineers seeking efficient and reliable flooring solutions.

Temporary Support during Construction

Non-composite floor decks provide vital temporary support during the construction phase. They bear the weight of wet concrete during pouring, distributing the loads evenly across the structure. This support ensures that the concrete sets and cures properly, resulting in a strong and stable floor system once construction is complete. 

Reduced Dead Loads

The lightweight nature of non-composite floor decks contributes to reduced dead loads on the building's structure. This can be particularly advantageous for projects where minimizing the overall weight is essential, such as in high-rise buildings or structures with weight restrictions.

Durability and Structural Integrity

Non-composite floor decks are designed to offer durability and long-term structural integrity. The use of high-quality steel or aluminum materials and the galvanized finish ensures that the deck can withstand various loads and environmental conditions, contributing to the overall longevity of the building.

Customization Options

Non-composite floor deck comes in various profiles, thicknesses, and configurations, offering a range of customization options. Builders and designers can select the most suitable decking system based on project specifications, load requirements, and aesthetic preferences.

Sustainable Construction

Incorporating non-composite floor deck in construction projects can contribute to sustainability efforts. The efficient use of materials and reduced construction timelines can lead to lower environmental impacts, making them an eco-friendly choice for certain building applications.

Applications of Non-Composite Floor Deck

Non-composite floor decks find wide-ranging applications in the construction industry. 

Low-Rise Buildings

Non-composite floor decks are commonly used in low-rise buildings, such as multi-story commercial spaces, retail outlets, educational institutions, and healthcare facilities. 

Parking Garages and Multi-Level Parking Structures

In parking garages and multi-level parking structures, non-composite floor decks provide essential support for the weight of vehicles and pedestrians. 

Mezzanines and Elevated Platforms

Mezzanines and elevated platforms in industrial facilities, warehouses, and commercial buildings often require durable and stable flooring systems. Non-composite floor decks offer a practical solution, as they can efficiently support elevated spaces and provide a level surface for various activities.

Roof Decks and Terrace Gardens

For roof decks and terrace gardens in both commercial and residential buildings, non-composite floor decks serve as a lightweight and efficient flooring solution. Their reduced dead loads are particularly beneficial for structures with weight restrictions. 

Industrial Facilities

In industrial settings, where heavy machinery and equipment are present, non-composite floor decks offer the necessary load-carrying capacity and stability. 

Temporary Structures and Construction Sites

Non-composite floor decks play a crucial role in temporary structures and construction sites. They provide a safe and stable platform for workers and equipment during the construction phase. Once the concrete has cured and the structure is complete, the non-composite deck remains in place, contributing to the building's overall structural integrity.

Retrofitting and Renovation Projects

Non-composite floor decks can be applied to upgrade existing floors or provide additional support to reinforce structures, potentially enhancing their load-carrying capacity and extending their service life.

The photos below are an example of a damaged floor in a parking garage where the form deck and concrete slab were replaced. The underside of the galvanized replacement form deck was painted to match existing.

broken non composite floor decking
non composite FORM DECK

Contact Us for Your Non-Composite Floor Deck Needs Today

Whether you're planning a low-rise building, parking structure, industrial facility, or any other construction project, our team of non-composite floor deck experts at Oates Metal Deck is dedicated to providing tailored and reliable floor decking solutions.

Explore the advantages of non-composite floor decks, from swift installation and reduced construction timelines to superior load-carrying capacity and structural integrity. Our seasoned metal roof deck specialists will guide you through the selection process, ensuring that you receive the most suitable flooring solution to meet your project's unique requirements.

Get started with your floor decking project today by calling us at (713) 475-0427 or filling out the contact form below to receive your free quote on non-composite floor deck.