Commercial Rolling Steel Doors ASTA 300 Series
The ASTA America 300 Series is a commercial rolling steel slat door engineered for freight terminals, warehouses, manufacturing plants, and commercial service openings throughout Greater Houston. Constructed from commercial-grade galvanized steel slats in a 3-inch flat or curved profile, the 300 Series delivers reliable performance and everyday durability at a competitive price point — making it one of the most widely specified commercial rolling doors in the industry. Available in two primary models — Model 322 (22-gauge, up to 12'×12') and Model 324 (24-gauge, up to 16'×16') — the 300 Series accommodates a broad range of opening sizes and application requirements. Chain hoist operation is standard, with motor operator available for automated access. Optional upgrades include structural steel guides, windload certification, high-cycle springs, vision panels, and weather sealing for complete environmental control. Halo Overhead Doors has been installing the ASTA 300 Series for Houston commercial clients since 1991. Our factory-certified technicians handle sizing, code compliance, professional installation, and ongoing service — ensuring your rolling steel door performs reliably for the long term..
Models
| Commercial Slat Doors | |
| Model 322 & 324 Series | |
| Model | Specifications |
|---|---|
| Model 324 | 24-gauge galvanized steel commercial slat door — available in flat or curved slat profile, up to 16′ wide × 16′ high |
| Model 322 | 22-gauge galvanized steel commercial slat door — heavier gauge for higher-security or higher-cycle applications, up to 12′ wide × 12′ high |
* Both models available with chain hoist (standard) or motor operator. WindCode, high-cycle springs, and structural steel guide upgrades available on both models.
Options
- Steel mounting plates for lateral jamb extension to provide additional door support on masonry or steel frames
- Top draft stop — seals tight at the header to reduce air infiltration; recommended for climate-controlled facilities
- Guide weather seal — aluminum retainer with brush seal at jambs to minimize air infiltration on flat-slat models
- Vision panels — 5″ × ¾” Lexan cut-outs spaced approximately 3″ apart for light and visibility (flat slat only)
- Structural steel upgrade guides — 3-piece structural steel guides for maximum guide rigidity on large or heavy openings
- Windload certification — available up to +40/-37 PSF for 14′ wide on Model 324; windload varies by model and size
- High-cycle springs — 50,000 or 100,000 cycle options for doors operating more than standard daily cycles
- Motor operator — electric motor with emergency manual hand chain; through-wall operation available
- Chain through wall — chain hoist operated from inside through the wall for secure lockable operation
- Powder coat finish — custom RAL powder coat colors available through ASTA’s in-house finishing; Envirocron™ XMR for superior corrosion resistance
- Curved or flat slat profile — curved profile available for applications where impact resistance is a priority
Features & Benefits
300 Series — Standard Features
- 3-inch commercial-grade galvanized steel slats in flat or curved profile — ASTM A-653 galvanizing for corrosion resistance
- Super Durable baked polyester topcoat with 40-year film integrity and 25-year no-fade limited paint warranty
- Roll-formed 12-gauge galvanized guides — economical yet durable for standard commercial applications
- Nylon endlocks — prevent slat separation in guides, quieter operation vs. steel endlocks
- Dual galvanized steel slide bolt locks — standard security for manual/push-up applications
- Chain hoist operation standard — reduction gear chain hoist, pull not to exceed 35 lbs
- Drum assembly with pre-installed curtain — faster installation; curtain arrives factory-pre-wound on drum
- 2-year limited warranty on materials and workmanship. Halo labor warranty on all installations.
| Model 324 — Technical Specifications | |
| Commercial Slat Door Performance Details | |
| Category | Specification |
|---|---|
| Slat Gauge | 24-gauge galvanized steel (ASTM A-653), flat or curved profile |
| Max Size | Up to 16′ wide × 16′ high |
| Guides | Roll-formed 12-gauge galvanized standard · 3-piece structural steel upgrade available |
| Operation | Chain hoist standard (≤35 lb pull) · Motor operator optional · Chain-through-wall option |
| Windload | Up to +40/-37 PSF for 14′ wide (tested); varies by size — consult Halo |
| Cycle Rating | Standard construction · High-cycle springs: 50k or 100k cycles available |
| Vision Panels | 5″ × ¾” Lexan inserts available (flat slat only) |
| Locking | Dual galvanized slide bolt locks standard |
| Paint Warranty | 40-year film integrity / 25-year no-fade limited warranty |
| Warranty | 2-year limited warranty. Halo labor warranty included. |
| Model 322 — Technical Specifications | |
| Heavy-Duty Commercial Slat Door Details | |
| Category | Specification |
|---|---|
| Slat Gauge | 22-gauge galvanized steel (ASTM A-653), flat or curved profile |
| Max Size | Up to 12′ wide × 12′ high |
| Operation | Same as Model 324 |
| Windload | Available — varies by size; consult Halo for specific requirements |
| Warranty | 2-year limited warranty. Halo labor warranty included. |
💡 Halo Tip: Need a larger opening or heavier-duty performance? Consider the ASTA 400 Series Heavy Duty Service Door, which handles openings up to 44′ wide × 18′ high in 18-gauge steel.
Applications & Ideal Use Cases
- Freight Terminals: High-traffic dock doors for freight receiving, sorting, and dispatch — standard and high-cycle configurations
- Warehouses: Interior and exterior warehouse access doors for daily operations and security after hours
- Manufacturing: Production floor access, raw material receiving, and finished goods shipping doors
- Distribution Centers: Loading dock and interior separation doors for multi-tenant distribution facilities
- Commercial Buildings: Retail back-of-house service entrances and receiving docks for shopping centers and strip malls
- Automotive Service: Service bay doors for auto repair shops, dealership service centers, and fleet maintenance facilities
- Institutional: Maintenance and receiving doors for schools, government buildings, and military facilities
- Mixed-Use: Service corridor access and parking structure entry points for commercial and mixed-use buildings
- Self Storage: Interior corridor doors for climate-controlled self-storage facilities requiring wider openings
📋 Windload note: Houston commercial buildings must meet TDI WindCode requirements. Halo will verify the correct windload spec for your location and opening size at no charge.
Why Halo Overhead Doors
- Factory-certified ASTA installers — trained on the full ASTA product line
- A+ BBB accredited business proudly serving Greater Houston since 1991 — over 35 years of local expertise
- Houston’s largest overhead door showroom — 60+ full-size doors at 6631 Theall Rd, Houston, TX 77066
- Same-day estimates — no-obligation project pricing delivered fast
- In-house installation team — no subcontractors, consistent quality and accountability on every job
- Licensed, bonded & insured for commercial work throughout the state of Texas
- Post-install service & maintenance plans available for all commercial accounts
- Serving all of Greater Houston — Pasadena, Katy, The Woodlands, Sugar Land, Pearland, Baytown, Conroe, and surrounding areas
⭐ 4.9 Google Rating · 4,800+ Doors Installed · Est. 1991 — ASTA is the preferred vendor for Halo Doors for commercial applications.
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What are commercial rolling steel doors and how do they work?
Commercial rolling steel doors are heavy‑duty doors made of interlocking steel slats that roll up into a compact coil above the opening, providing secure and space‑saving access control for warehouses, garages, and industrial facilities.
What should I consider when choosing a rolling steel door?
Key factors include the door’s material gauge (thickness) for durability, environmental needs (wind loads, insulation), security features, and the required cycle life based on traffic frequency.
Can rolling steel doors be insulated?
Yes — many commercial rolling steel doors can be insulated to improve energy efficiency, noise control, and temperature regulation, which is especially useful in climate‑controlled facilities.
How durable are commercial rolling steel doors?
These doors are built from robust, galvanized steel that resists corrosion and withstands heavy use. High‑performance models are designed for tens of thousands of open/close cycles in busy environments.
What maintenance do rolling steel doors require?
Routine inspections, cleaning, lubrication of moving parts, and periodic professional service help extend lifespan and prevent issues like noise, jams, or uneven movement.
Are rolling steel doors suitable for fire‑rated or high‑security applications?
Yes — specialized models can be fire‑rated to meet safety codes and provide additional security. There are also options with vision lites or grilles for visibility while maintaining protection.
How do I choose the right size and installation for my facility?
Measure the opening accurately, assess headroom space (rolling doors require minimal overhead), and work with a qualified dealer/installer to ensure proper alignment, balance, and compliance with local building codes.