Engineered for commercial high-rises, industrial logistics hubs, and cold-chain infrastructure across Southern California and the West Coast corridor.
Heavy-duty insulated access doors configured for structural cold room envelopes and elevated refrigerated deck slabs.
High-density polyurethane core panels designed for thermal-barrier composite flooring and walk-in freezer chambers.
Precision-braked slab edge closures and perimeter screed stops engineered to contain concrete pour lines cleanly.
Ultra-low temperature refrigeration panels providing severe compressive strength for heavy forklift deck loads.
Complete secondary steel frameworks and heavy-gauge deck supports matching Vernon and Inland Empire warehouse codes.
High-tensile zinc-coated roofing and cladding panels offering wind uplift resistance for coastal Pacific installations.
Z60 to Z275 hot-dipped zinc structural corrugated sheets for durable form deck and stay-in-place concrete shuttering.
0.6mm weather-resistant edge plates, end-closure covers, and pour stops ensuring zero slurry leakage at deck joints.
Standard Reference: ANSI/SDI C-2017 | LADBS Document Reference No. AC43 | CBC 2022 Chapter 22A
The Southern California structural skyline—stretching from high-density multi-family podium structures in Downtown Los Angeles (DTLA) and Century City to expansive tilt-up logistics facilities throughout the Inland Empire—presents one of the most demanding seismic environments in North America. Structural engineers operating under the jurisdiction of the Los Angeles Department of Building and Safety (LADBS) and the California Building Code (CBC 2022 / IBC 2024) require cold-formed steel deck systems that do not merely act as dead-load formwork during the concrete pour, but serve as primary diaphragm systems capable of transferring violent lateral seismic forces directly into vertical shear frames.
Galvanized composite floor decking operates through combined mechanical interaction between roll-formed steel profiles and the cured concrete slab. Rather than relying solely on chemical adhesion between concrete and zinc, our high-performance floor deck panels feature precision-engineered mechanical embossments rolled into the vertical web profiles at regular intervals. These embossments act as continuous shear keys, resisting horizontal slip between the concrete topping and the steel shell under intense dynamic live loads and cyclic earthquake tremors.
According to the Steel Deck Institute (SDI) ANSI/SDI C-2017 specification for composite steel floor deck-slabs, the steel deck functions as positive bending reinforcement in the composite phase. This completely eliminates the need for bottom-tier tension rebar across standard spans, reducing overall building dead weight by up to 28% compared to conventional rebar-reinforced formwork systems. In Los Angeles mid-rise and high-rise applications, lowering structural dead load has an immediate exponential benefit: it minimizes the total seismic base shear force ($V = C_s \cdot W$), which permits structural engineers to downsize steel moment frames, columns, and subterranean foundation pilings.
| Profile Designation | Depth / Pitch | Standard Gauges (GA) | Yield Strength ($F_y$) | Zinc Coating Spec | Max Unpropped Clear Span |
|---|---|---|---|---|---|
| Type 1.5" B-Deck (Wide Rib) | 1.5" (38mm) / 6.0" Pitch | 22, 20, 18, 16 GA | 33 ksi to 50 ksi | ASTM A653 G60 / G90 | 7'-6" to 11'-2" (Single Span) |
| Type 2.0" Composite Deck (W2) | 2.0" (51mm) / 12.0" Pitch | 22, 20, 18, 16 GA | 40 ksi to 50 ksi | ASTM A653 G90 | 9'-8" to 14'-4" (Two-Span) |
| Type 3.0" Composite Deck (W3) | 3.0" (76mm) / 12.0" Pitch | 20, 18, 16 GA | 50 ksi Standard | ASTM A653 G90 / G185 | 12'-2" to 17'-8" (Triple Span) |
| 0.9/1.0/1.2mm Cellular Deck | Custom Acoustic / Power Raceway | 18/20 GA Dual Layer | 50 ksi Structural | Hot-Dip Galv + Prime | Consult Engineering Matrix |
Los Angeles County falls almost universally into Seismic Design Categories (SDC) D, E, or F under ASCE 7-22. In these zones, floor slabs are calculated as rigid or semi-rigid horizontal diaphragms that must resist severe in-plane shear forces without rupture. Our roll-formed decks provide high in-plane shear strength through rigorously engineered side-lap connections and support fastening configurations:
1. Side-Lap Fastening: Options range from standard pneumatic mechanical button punching and punch-and-die clinches to self-drilling #10 or #12 TEKS screws and side-lap stitch welds. For high-shear industrial diaphragms in Long Beach and Carson, mechanical stitch screws installed at 12" to 18" on center yield tested diaphragm shear values ($S_n$) exceeding 1,450 plf (pounds per linear foot).
2. Headed Shear Stud End-Welding: To establish full composite interaction with supporting steel girders, 3/4" diameter headed concrete shear connectors (AWS D1.1 structural welding compliant) are melted directly through the bottom valley of the deck into the underlying steel flange. Our galvanized coatings are tightly controlled to eliminate excessive zinc splatter during the stud welding cycle, preventing weld porosities and passing rigorous job-site bend tests with zero ductile failure.
Microclimates within the Los Angeles basin vary dramatically. Inland areas such as the San Gabriel Valley and Riverside exhibit relatively low atmospheric humidity. However, development projects within 10 miles of Santa Monica Bay, the Port of Long Beach, or San Pedro encounter continuous marine fog saturated with airborne sodium chloride ($NaCl$) and marine atmospheric aerosols.
Standard G60 (0.60 oz/ft² total both sides) provides basic indoor protection under climate-controlled conditions. However, for parking garages, open soffits, logistics cross-dock loading bays, or port terminals, our factory supplies structural coils with continuous hot-dipped zinc coatings at G90 (0.90 oz/ft² / Z275) and severe-exposure G185. The sacrificial galvanic barrier forms a dense insoluble patina of zinc hydroxycarbonate, resisting pit-corrosion even if scratched during rebar placement or heavy concrete pumping operations.
36" cover width 1.5" Type B decks maximizing crane unpropped spans for tilt-up mezzanine slabs in Ontario, Chino, and Fontana.
2" and 3" composite steel decks matched with lightweight concrete topping for UL 2-hour and 3-hour fire-rated floor assemblies.
Heavy-gauge galvanized steel decking integrated with high-density polyurethane cold storage floor slabs and sub-floor thermal breaks.
El Segundo and Hawthorne cleanroom mezzanine floor platforms engineered for high stiffness, dampening harmonic robotics vibration.
Direct from China's premier automated production facilities to the Port of Los Angeles without intermediary markup.
Equipped with 28-station cold roll-forming stages and flying hydraulic shears, producing profile tolerances within ±1.5mm across 40-foot lengths.
Patented roller dies press sharp, uniform shear dimples into deck webs to maximize horizontal shear lock with cured concrete slabs.
Tightly strapped nesting bundles wrapped in vapor-inhibiting plastic film and steel corner protectors, rated for open-sea transit across the Pacific.
Combining tier-1 Chinese manufacturing scale with hyper-responsive Los Angeles logistics support.
Every coil batch is certified to ASTM A653 / A653M Structural Steel Standard with full Mill Test Reports (MTRs) detailing chemical analysis, tensile strength (50 ksi min), elongation, and zinc weight verification.
By purchasing direct from our high-capacity manufacturing base, LA developers bypass multi-tiered domestic distribution chains. Our streamlined ocean freight delivery direct to San Pedro Bay offers massive cost arbitrage.
We roll-form your decking precisely according to your structural shop drawings. Bundles arrive pre-sorted, tagged by grid line, and cut to length, eliminating jobsite hot-cutting, steel scrap, and urban construction noise.
Engineered answers to assist project executives, estimators, structural engineers, and compliance officials.
All floor deck supplied into the Los Angeles market is rolled from ASTM A653/A653M Structural Quality steel coils conforming to the California Building Code (CBC) Chapter 22. Each production run is accompanied by certified Mill Test Reports (MTRs) confirming physical yield strength (33 to 50 ksi), chemical ladle analysis, and G60/G90 zinc weight, which can be readily submitted to the LADBS plan check division and structural engineers of record for review.
Ocean container transport from Chinese coastal deep-water ports (Shanghai / Ningbo / Qingdao) directly to the Port of Los Angeles (POLA) or Port of Long Beach (POLB) averages 14 to 18 sailing days. Production cycles for large-scale orders (100,000+ sq.ft) typically require 7 to 10 days, allowing developers to secure landed delivery at their jobsite or staging yard within 30 to 40 calendar days from drawing approval.
Yes. Our 1.5", 2", and 3" composite floor deck profiles match standard geometric parameters recognized under Underwriters Laboratories (UL) floor-ceiling assemblies, including the UL D900, D700, and D800 series. When paired with specified thicknesses of lightweight (110 pcf) or normal-weight (145 pcf) concrete topping slabs, assemblies achieve verified 1-hour, 2-hour, and 3-hour fire ratings without requiring underside spray-applied fireproofing.
Ocean-bound moisture and salt air present a severe risk of zinc hydroxide (white rust) formation. Our factory implements a three-tier protection protocol: chemically passivating the galvanized surface with a chrome-free or hexavalent passivation bath, inter-leaving bundles with vapor corrosion inhibiting (VCI) polymers, and wrapping every wooden-dunnage-supported bundle in high-density waterproof heat-sealed shrouds with internal desiccant bags.
Absolutely. We coordinate directly with your structural steel detailer and BIM coordinator. Deck panels can be roll-formed to exact lengths up to 42 feet (reducing lap splices) and packaged into numbered erection bundles matching crane-lift zones on your structural erection drawings. This significantly speeds up deck layout and reduces on-site staging footprint in congested downtown LA locations.
We manufacture both traditional overlapping side-lap profiles suitable for top-down pneumatic clinching, button punching, or stitch-screw installation, as well as interlocking standing-seam sidelaps designed for automated tool-crimping. This enables structural engineers to specify the exact diaphragm flexibility factor ($F$) and shear capacity ($S_n$) called for in the project's seismic calculations.
In conditioned podiums and refrigerated storage facilities across California, thermal bridging across floor deck assemblies is governed by Title 24 Part 6. Our composite decks seamlessly pair with continuous rigid polyisocyanurate (PIR) and polyurethane (PU) acoustic/thermal sub-floor underlayment systems, preventing thermal loss between conditioned retail or residential spaces and unconditioned subterranean parking structures.
Every deck order can be accompanied by custom CNC-braked gauge metal accessories: including galvanized cantilever slab pour stops (sized to deck height + slab depth), z-closures, cell closures, girder fillers, and foam rib closure plugs. All accessories are fabricated from matching ASTM A653 G90 sheet steel to prevent galvanic corrosion and ensure clean concrete containment at the building slab edge.
Partner directly with China's top-tier galvanized floor deck manufacturing facility. Our structural engineering support team reviews your structural framing plans, slab depths, and diaphragm shear schedules to provide an all-inclusive FOB or CIF Port of Los Angeles quotation within 24 hours.
Our sales engineers respond to project questions during working hours (GST+4).