SDI Member ANSI/SDI compliant
Type BI Inverted Form Deck
4.8· 16 reviews
Type B Inverted Form Deck functions as permanent formwork for concrete slabs in floor and roof systems, available in gauges 22 GA through 16 GA. Designed specifically for architectural ceiling applications where the soffit is exposed.
Architectural ceiling deck with exposed underside for schools, offices, and commercial facilities.
Features
Type BI Inverted Form Deck Features
Elevate your projects with our Type BI Inverted Form Deck, featuring high structural strength, efficient formwork, and corrosion-resistant finishes. Perfect for architectural ceilings, multi-level parking structures, and commercial floor systems requiring exposed soffits.
High Structural Strength
Supports concrete and live loads while providing an architecturally finished exposed ceiling surface.
Efficient Formwork
Reduces labor and construction time as permanent formwork for concrete slabs, eliminating the need for temporary form removal.
Corrosion Resistance
G60/G90 galvanized or prime-painted finishes for durable corrosion resistance in commercial environments.
Cost-Effective
Combines formwork and structural support in one product, reducing material and labor costs for exposed ceiling applications.
Compliance with Standards
Meets SDI and ANSI guidelines, ensuring quality and code compliance in all applications.
Versatile Options
Multiple gauges (22–16 GA) and finishes available for various load requirements and architectural specifications.
Options
Type BI Inverted Form Deck Options
The Type BI inverted form deck offers corrosion-resistant finishes and custom lengths (6′ to 40′), providing a clean exposed soffit for architectural applications.
Finish & Material Options
Choose from our high-strength steel Type BI Inverted Form Deck, available with a corrosion-resistant galvanized finish meeting ANSI/SDI standards, a variety of painted finishes for tailored aesthetics, or bare steel for custom applications. Each finish is designed to enhance durability and maintain performance.
Request a Quote →Finish and Coatings
Choose from our high-strength steel Type BI Inverted Form Deck, available with a corrosion-resistant galvanized finish meeting ANSI/SDI standards, a variety of painted finishes for tailored aesthetics, or bare steel for custom applications. Each finish is designed to enhance durability and maintain performance.
Request a Quote →Custom Lengths
Whether you require precise deck lengths ranging from 6′-0″ for smaller projects or extensive spans up to 40′-0″ for larger constructions, we cater to all dimensions with precision and efficiency. Our custom length service is designed to meet your specific requirements, ensuring optimal fit and minimal waste.
Request a Quote →Specifications
Specifications of Type BI Inverted Form Deck
Key details on strength, gauge, finish, and depth for the Type BI inverted form deck
Dimensions and Profile Details
| Property | Details |
|---|---|
| Profile Depth | 1.5 inches |
| Coverage Width | 36 inches |
| Rib Spacing | 6 inches (center to center) |
| Rib Height | 1.5 inches |
The Type BI Inverted Form Deck features a rib depth of 1.5 inches and a standard coverage width of 36 inches. Installed with ribs pointing upward, it leaves a smooth flat soffit exposed below, creating an architectural ceiling surface without additional finishes. Its rib spacing of 6 inches (center to center) ensures structural integrity while accommodating concrete placement.
Gauge
| Gauge | Bare Steel Thickness (in) | Weight (lbs/sq ft) | Typical Applications |
|---|---|---|---|
| 22 | 0.0299 | 1.25 | Light-duty floors and ceilings. |
| 20 | 0.0358 | 1.5 | Standard commercial floor systems. |
| 18 | 0.0474 | 2.6 | Heavy-duty applications, parking structures. |
| 16 | 0.0598 | 3.0 | Heavy load industrial floors. |
The Type BI Inverted Form Deck is available in gauges 22, 20, 18, and 16. Lighter gauges (22 and 20) are ideal for standard commercial applications. Heavier gauges (18 and 16) provide enhanced strength for parking structures and heavy industrial floor systems.
Finish
| Finish Type | Details |
|---|---|
| Galvanized G60 | Zinc coating of 0.6 oz/ft². Recommended for general environments. |
| Galvanized G90 | Zinc coating of 0.9 oz/ft². Ideal for highly corrosive environments. |
| Prime-Painted | Provides a base coat for additional protection or paint adhesion. |
| Bare Steel | Unfinished; typically for indoor use or controlled environments. |
The Type BI Inverted Form Deck comes in galvanized (G60 and G90) and prime-painted finishes. Galvanized coatings offer corrosion resistance, with G90 providing extra protection for highly corrosive environments. G60 and G90 finishes conform to ASTM A653 specifications.
Installation
Installation Details and Guidelines
Essential practices for proper installation, attachment, and fasteners.
Standard Installation Practices
- 1Install the deck perpendicular to the supports with ribs pointing upward.
- 2Fasten using pins, powder-actuated fasteners, or TEK screws at each support.
- 3Overlap sidelaps and secure with button punching or screws at 12" o.c.
Deck Attachment and Fasteners
- Pins or powder-actuated fasteners to secure deck to supports
- #10 TEK screws at 6" o.c. on edges
- Sidelaps attached using button punching or #10 TEK screws at 12" o.c.
Applications
Applications of Type BI Inverted Form Deck
The inverted rib profile delivers a smooth, architectural exposed soffit, making the Type BI form deck ideal for industrial floors, schools, offices, and parking structures.
Industrial Flooring with Exposed Ceiling
Type BI Inverted Form Deck provides strong support for industrial floor systems while delivering an architecturally finished exposed soffit ideal for schools, offices, and civic buildings.
Read More →
Multi-Level Parking Structures
Commonly used in parking garage construction, providing permanent formwork with a clean exposed underside that reduces finishing costs.
Read More →
Compliance with Standards
The Type BI Inverted Form Deck complies with SDI (Steel Deck Institute) specifications and ANSI standards, ensuring high standards for design and performance.
Know More (sdi.org) →Delivery Areas
Cities Available for Type BI inverted form deck delivery in 1 day
Fast, reliable delivery throughout Florida with nationwide shipping available.
North Florida / Panhandle
Southwest Florida
Central Florida
Space & Treasure Coasts
South Florida
FAQ
FAQs About Type BI Inverted Form Deck
What applications use Type BI inverted form deck?
Type BI is used in architectural ceiling systems, multi-level parking structures, schools, offices, and facilities where an attractive exposed soffit is required.
How is Type BI form deck installed differently from standard form deck?
Type BI is installed with ribs pointing upward (inverted), leaving the flat side exposed below as a finished ceiling surface without the need for additional finishing materials.
What gauges are available?
Available in gauges 22, 20, 18, and 16 GA, providing options for different structural requirements.
What finish options are available?
Available in G60 and G90 galvanized finishes for corrosion resistance, and prime-painted finishes for additional protection.
Can Type BI be cut to custom lengths?
Yes, available in custom lengths from 6'-0" to 40'-0", ensuring a precise fit with minimal waste.
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