SDI Member ANSI/SDI compliant
1.5" Composite Floor DECK
1.5" Composite Floor Deck provides high strength-to-weight ratio with composite bonding for concrete, designed to bond with concrete and enhance structural efficiency. Available in gauges 22 GA to 16 GA with galvanized finishes G60/G90. Meets SDI and ANSI standards.
Strong, versatile, and easy to install. Perfect for your flooring needs.

Features
1.5" Composite Floor DECK Features
Optimize your floor systems with our 1.5" Composite Floor Deck, delivering reliable concrete bonding, fire resistance compatibility, and SDI-compliant performance for commercial and residential construction.
High Strength-to-Weight Ratio
Offers exceptional load capacity while minimizing weight, ideal for composite floor systems.
Enhanced Structural Efficiency
Works with concrete to form a composite system, providing superior strength through concrete bonding.
Galvanized or Prime-Painted Finish
G60/G90 galvanized or prime-painted finishes for enhanced durability and corrosion resistance.
Fire Resistance Compatibility
Supports fireproofing materials and fire ratings, offering enhanced safety for commercial and residential projects.
Compliance with SDI Standards
Meets Steel Deck Institute (SDI) and ANSI guidelines, ensuring quality and code compliance.
Optimized for Spans
Available in 22, 20, 18, and 16 gauges with minimal deflection for composite floor applications.
Options
1.5" Composite Floor Deck Options
The 1.5" composite floor deck offers corrosion-resistant finishes and custom lengths (6′ to 40′), reducing waste and optimizing installation efficiency.
Finish & Material Options
Choose from our high-strength steel 1.5" Composite Floor Deck, available in galvanized finishes meeting SDI/ANSI standards, painted finishes for enhanced aesthetics, or bare steel for specialized applications. Each option ensures durability and reliable performance.
Request a Quote →Finish and Coatings
Choose from our high-strength steel 1.5" Composite Floor Deck, available in galvanized finishes meeting SDI/ANSI standards, painted finishes for enhanced aesthetics, or bare steel for specialized applications. Each option ensures durability and reliable 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 ensures optimal fit and minimal waste.
Request a Quote →Specifications
Specifications of 1.5" Composite Floor Deck
Key details on strength, gauge, finish, and depth for the 1.5" composite floor deck
Dimensions and Profile Details
| Property | Details |
|---|---|
| Profile Depth | 1.5 inches |
| Coverage Width | 36 inches |
| Rib Spacing | 6 inches (center to center) |
| Material Width | 39 inches |
The 1.5" Composite Floor Deck features a rib depth of 1.5 inches and a standard coverage width of 36 inches. Its 6-inch rib spacing (center to center) and overall material width of 39 inches allow for secure overlaps and strong composite action with poured concrete slabs.
Gauge
| Gauge | Bare Steel Thickness (in) | Weight (lbs/sq ft) | Typical Applications |
|---|---|---|---|
| 22 | 0.0295 | 1.6 | Light-duty spans. |
| 20 | 0.0358 | 2 | Medium spans. |
| 18 | 0.0474 | 2.6 | Heavy-duty applications. |
| 16 | 0.0598 | 3 | Heavy load spans. |
The 1.5" Composite Floor Deck is available in gauges 22, 20, 18, and 16, providing versatile options for load and span requirements. Thinner gauges (22 and 20) are lightweight and economical. Thicker gauges (18 and 16) deliver increased structural strength for heavier loads.
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 1.5" Composite Floor Deck is available in galvanized (G60 and G90) and prime-painted finishes. Galvanized finishes deliver superior corrosion resistance. The prime-painted option provides a protective base coat for projects requiring additional coatings. 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
- 1Attach perpendicular to supports.
- 2Use puddle welds (5/8" diameter) or #10 TEK screws at 6" on edges.
- 3Secure sidelaps with #10 TEK screws at 12" o.c.
Deck Attachment and Fasteners
- 5/8" Diameter Puddle Welds
- #10 TEK screws at 6" o.c. on edges
- Sidelaps attached using #10 TEK screws at 12" o.c.
Applications
Applications of 1.5" Composite Floor Deck
Bonding with concrete to form a composite structural system, the 1.5" composite floor deck is ideal for multi-story buildings, mezzanines, and warehouse floors.

Composite Floor Systems
Bonds with concrete slabs to reduce deflection and increase strength. Acts as permanent formwork while providing composite structural behavior.
Read More →
Mezzanine Flooring
Provides a durable base for mezzanine floors in warehouses and commercial buildings, supporting heavy loads with efficient installation.
Read More →Compliance with Standards
The 1.5" Composite Floor 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 1.5" composite floor 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 1.5" Composite Floor DECK
What is the primary use of the 1.5" Composite Floor Deck?
Designed to support concrete slabs, acting as permanent formwork while creating a composite system that enhances structural strength and load-bearing capacity.
What gauges are available?
Available in gauges ranging from 22 GA to 16 GA, with thicker gauges better for heavier loads and longer spans.
What finishes are offered?
Options include galvanized (G60 or G90) for superior corrosion resistance, prime-painted, and bare steel.
Can it accommodate custom lengths?
Yes, can be cut to lengths ranging from 6'-0" to 40'-0", ensuring minimal waste.
What makes the 1.5" composite deck suitable for floor applications?
The embossed rib profile provides mechanical bonding with concrete, creating a structural composite slab that shares load between the steel deck and concrete.
Get a free Quote

