Service doors
Compare commercial slat, heavy-duty service, and insulated service door options for the intended opening and daily use.
Compare Rolling Steel Door Applications
Dynamo Overhead Garage Doors can help you review rolling steel door options for a commercial opening. The catalog below separates each model’s features so you can compare the right products.
Consider how the opening is used, its size and available space, and any insulation or fire-rating requirements. Confirm the selected model and current specifications before ordering.
Plan Your Rolling Steel Door Project
Tell us about the opening, the way the door will be used, and any requirements for insulation, visibility, security, or fire rating. Include the opening dimensions and available headroom if known.
The catalog below covers service doors, insulated doors, fire-rated doors, counter shutters, and rolling grilles. Expand a model to review the listed features.
Dynamo Overhead Garage Doors can assess the opening and discuss the door, operator, and installation scope. We confirm current specifications, availability, and any required ratings as part of your estimate.
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Which Product Category Fits the Opening?
Fire-rated doors and shutters
Fire-rated openings require the correct listed product and installation. Discuss the project requirements rather than assume every model provides the same rating.
Counter shutters and grilles
Counter openings and security grilles serve different purposes. Review access, visibility, and operating requirements when selecting a model.
Rolling Steel Door Product Information
300 Series Commercial Slat Door
Standard Features Include:
- Roll formed 12 gauge galvanized guides
- Nylon endlocks
- Dual galvanized steel slide bolt locks
- Chain hoist operation
- Drum assembly with pre-installed curtain
400 Series Heavy Duty Service Door
Standard Features Include:
- Enclosed Hood
- Reduction gear chain hoist
- 3-piece structural steel guides
- Double angle bottom bar with weather seal
500 Series Fire Rated Door
Standard Features Include:
- U.L. Label sizes up to 120 sq. ft., oversized labels are provided for openings up to 600 sq. ft. All doors comply with 45 minute, 1-1/2 hour, 3 hour, and 4 hour (18-gauge only)
- Slats: 22, 20, and 18-gauge galvanized steel flat slats, galvanized according to ASTM A-653 and finished with a high-tech polymer based super durable polyester topcoat.
- Guide assembly, barrel assembly, and hood
- Floor level release and reset handle provided with the chain hoist, and key test station provided with the motor operation. No tools or ladders are required for the drop test or to reset our simple test fire door.
550 Series Fire Rated Counter Shutter
Standard Features Include:
- 22 -gauge flat slats with 1-1/2” high profile
- Steel endlocks
- Enclosed hood
- U.L. approved
- Fusible Links
- Slide Bolt Locks
- Bottom weather seal
- 2-year limited warranty
600 Series Insulated Service Door
Standard Features Include:
- Enclosed hood with baffle
- Reduction gear chain hoist
- 3-piece structural steel guides with weather seal
- Double angle bottom bar with weather seal
700 Series Counter Shutter
Standard Features Include:
- Flat slats with 1-1/2” high profile
- Steel end-locks
- Enclosed Hood
- Slide bolt locks
- Aluminum angle bar with weather seal
- 2-Year limited warranty
- Manual Push up to 10’-4” wide
- Crank operation above 10’-4” wide
800 Series Rolling Grille
Standard Features Include:
- The attached charging arm makes winding the spring easy and safe
- Exclusive extruded aluminum telescoping support tubes make loading, unloading, and installing a lighter and easier task (Optional)
- 15” front loading bracket plates allow for quick drip-in barrel installation and level adjustment
- Curtains are pre-wrapped on an extruded aluminum barrel simplifying the job on site
- Smart-lock system allows end-users to engage the lock at a convenient height and then close the grille to the floor, where the grille locks automatically.
Plan the Complete Door System
Door selection and operator selection belong in the same discussion. Provide the opening dimensions, expected usage, and any special requirements when requesting an estimate.
Rolling Steel Door Questions
Related Services and Products
Request a Rolling Steel Door Estimate
Contact Dynamo Overhead Garage Doors with your location and project details. We serve Conroe, Tomball, The Woodlands, and surrounding North Houston communities.