What Is A Flush Steel Door?
A flush steel door is a commercial door with a smooth face. Flush steel doors do not have glass windows or vented louvers in the face of the door. Other door preps such as 161 cylindrical lock, 86 mortise lock, or panic exit device prep are allowed. Commercial flush steel doors are the majority of the steel door type you see in buildings. Flush commercial steel doors are commonly used for entrance, passage, exit, and storeroom door applications.
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Benefits Of A Flush Steel Door
Flush steel doors have many characteristics that make it a great choice for any building.
Structural Integrity
A steel door is constructed from a heavy duty steel skin that in a lot of ways acts as an armor. Since flush steel doors do not have any cutouts in the door for a glass window or vented louver, the door has more structural integrity.
Paint Ready
Flush steel doors are primered gray. The primer is baked on the steel doors. Most businesses keep the standard gray finish on the steel doors since it looks professional. However, other businesses paint the flush steel doors to match the color in their business logo and help create a more customized atmosphere in their building.
Security
Since a flush commercial steel door does not have a glass window or vented louver, it is a better security door. Glass windows or door vents, are an easy target for vandals to attack in order to gain entry into the building. Without the glass window or louver in the door, vandals are unable to target these in the door.
Thermal Insulation
Many building owners are not aware that a flush commercial steel door with a polystyrene insulated core offers better insulation than wood doors or aluminum doors.
Flush Steel Door Applications
Flush commercial steel doors can be used in virtually any commercial, industrial, or institutional application.
- Healthcare
- Bank and Finance
- Department Stores
- Grocery Stores
- Warehouses
- School & Universities
- And More!
Flush Commercial Steel Door Features
- 18 Gauge Galvannealed Steel
- Polystyrene Full Body Insulated Core
- Available Fire Label Up To 3 Hours
- 4.5 Inch Hinge Prep With 7 Gauge Hinge Reinforcement
- Reinforced 161 Lock Prep or Panic Bar Prep
- Heavy Duty Steel Cap
- Door Closer Reinforcement
- ANSI Compliance
Available Flush Steel Door Types
Single Flush Commercial Steel Doors
Single swinging steel door. This flush steel door package includes an 18 gauge flush steel door, 16 gauge steel frame, ball bearing door hinges, and a cylindrical lock or panic device.
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Double Flush Commercial Steel Doors
Double swinging steel door pair. This flush steel door package includes two 18 gauge flush steel doors, 16 gauge steel frame, ball bearing door hinges, and a cylindrical lock or panic devices.
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Available Flush Steel Door Sizes
Commercial flush steel doors are available in all standard architectural and construction sizes. All flush commercial steel doors are 1-3/4 inch thick. Actual door width is the nominal door width less 1/4 inch. Actual door height is the nominal height less 7/8 inch.
Popular ADA Compliant Flush Steel Door Sizes
- Architect Call Size: 3068, Nominal Width: 3'-0" (36 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 3070, Nominal Width: 3'-0" (36 Inch) x Nominal Height: 7'-0" (84 Inch)
6'-8" (80 Inch) Flush Commercial Steel Door Sizes
- Architect Call Size: 2068, Nominal Width: 2'-0" (24 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 2468, Nominal Width: 2'-4" (28 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 2668, Nominal Width: 2'-6" (30 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 21068, Nominal Width: 2'-10" (34 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 3468, Nominal Width: 3'-4" (40 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 3668, Nominal Width: 3'-6" (42 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 3868, Nominal Width: 3'-8" (44 Inch) x Nominal Height: 6'-8" (80 Inch)
- Architect Call Size: 4068, Nominal Width: 4'-0" (48 Inch) x Nominal Height: 6'-8" (80 Inch)
7'-0" (84 Inch) Flush Commercial Steel Door Sizes
- Architect Call Size: 2070, Nominal Width: 2'-0" (24 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 2470, Nominal Width: 2'-4" (28 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 2670, Nominal Width: 2'-6" (30 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 21070, Nominal Width: 2'-10" (34 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 3470, Nominal Width: 3'-4" (40 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 3670, Nominal Width: 3'-6" (42 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 3870, Nominal Width: 3'-8" (44 Inch) x Nominal Height: 7'-0" (84 Inch)
- Architect Call Size: 4070, Nominal Width: 4'-0" (48 Inch) x Nominal Height: 7'-0" (84 Inch)
8'-0" (96 Inch) Flush Commercial Steel Door Sizes
- Architect Call Size: 2080, Nominal Width: 2'-0" (24 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 2480, Nominal Width: 2'-4" (28 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 2680, Nominal Width: 2'-6" (30 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 21080, Nominal Width: 2'-10" (34 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 3480, Nominal Width: 3'-4" (40 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 3680, Nominal Width: 3'-6" (42 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 3880, Nominal Width: 3'-8" (44 Inch) x Nominal Height: 8'-0" (96 Inch)
- Architect Call Size: 4080, Nominal Width: 4'-0" (48 Inch) x Nominal Height: 8'-0" (96 Inch)
Flush Commercial Steel Door Rough Opening
Flush commercial steel doors can be installed on interior or exterior building walls. The rough opening can be calculated using the formulas below.
Interior Door Application With Frame Wrapped Around Wall:- Rough Opening Width = Nominal Width + 2 Inches
- Rough Opening Height = Nominal Height +1 Inch
Exterior Door Application With Frame Butted Against Wall:- Rough Opening Width = Nominal Width + 4.5 Inches
- Rough Opening Height = Nominal Height + 2.25 Inch
Flush Steel Door Specifications
- Fire Rating: Optional - No Label, 20 Minute, 45 Minute, 60 Minute, 90 Minute, or 3 Hour Available. Fire Rated Doors Compliant With Negative Pressure Testing (ASTM E 152 and UL10B) and Positive Pressure Standards (UBC 7-2 and UL10C)
- Level/Usage Frequency: Heavy Duty, SDI Level 2, 18 Gauge Steel Sheets (Level 3 and 4 Available)
- Door Thickness: 1-3/4 Inch
- Steel Type: Galvannealed
- Door Finish: Baked On Prime Coat Finish. Prime Coat Can Act As Finish Coat or Painted Finish Can Be Applied In Field
- Sizes: Standard Width Up To 4'-0" (48 Inches), Standard Height Up To 9'-0" (108 Inches), Custom Sizes Available
- Reinforcements: 12 Gauge Door Closer Reinforcement, 7 Gauge Hinge Reinforcement
- Channels: Heavy Duty Top and Bottom Channels
- Core: Full Body Insulated Polystyrene
- Edges: Square Hinges, Square Lock Edges, Full Height Epoxy Filled Mechanical Interlock Edges
- Approvals: Certified by UL, Meets ANSI/BHMA Compliance
- R Value: 7.14
- U Value: 0.14
- STC Rating: 33
- Hinge Prep: Patented Universal Hinge Prep Allows For Standard Or Heavy Weight Hinges
- Hinge/Lock Location: Gladiator
- Buy American Act Compliance: Meets Buy American Act - Manufactured In USA
- Handing: Door Slab Not Handed. Door System (Door + Hinge) Is Handed.
- Available Preps: 161 Lock Prep (Lever Handles & Knobs), 86 Mortise Lock Prep, Deadbolt Lock Prep, Panic Device Prep
- ANSI Standards: Door Construction Meets or Exceeds Requirements Of ANSI A250.8. Hardware Preparations Meet or Exceed Requirements Of ANSI A250.6.
- UL Certification: Yes
Frequently Asked Questions
How Long Will Flush Steel Doors Last?
Many building owners share more concerns than just security when it comes to flush commercial steel doors. For instance the cost of ownership is a large concern. However, commercial flush steel doors have the longest product life span in comparison to any other commercial door in a building. On average a flush commercial steel door will outlast a wood door by 30 years.
Can Flush Steel Doors Dent?
Another concern by building owners is if flush steel doors dent. The answer is yes, any steel door can dent, however this can be avoided and even easily repaired if necessary. Most flush commercial steel doors should not dent very easily. 18 gauge steel is the common thickness of the steel used on the shell of the door. 18 gauge steel is a thickness that is very durable and should not dent under most circumstances. Dents typically will occur with thinner gauge steel such as 20, 22, or 24 gauge steel doors. In the event that the door application is in an environment that is very abusive, the building owner should include armor plates or kick plates on the flush steel door. An armor plate or kick plate is a .050" thick aluminum or stainless steel protection plate designed to mount to the base of the flush steel door. Armor plates are designed to absorb kicks and heavy abuse preventing any damage to your steel door. Edge guards are also available for the hinge or latch edge of the door.
Are Flush Steel Doors Expensive To Repair?
Flush commercial steel doors are by no means expensive to repair. In the event the steel door gets damaged with a dent, simple bondo can be used to fill the dent. Since commercial flush steel doors are primered gray, any gray primer from your local hardware store can be purchased to paint the bondo to match the door.
Will Flush Steel Doors Rust?
Our flush commercial steel doors and frames are manufactured from galvannealed steel. Galvannealed steel is a manufacturing process that involves a hot dip process which converts a zinc coating into a zinc iron alloy. With this coating our flush steel doors and frames are better protected from rust. Galvannealed steel is primarily used for any product application outdoors.
