Standard Duty​

Standard Duty Steel Rolling Service Doors

The Standard Duty door is an economical yet reliable service door affording many years of maintenance free performance. Many options are offered from perforated slat to the inclusion of a pass door or grille section. Please see the many options available and if there is need for higher cycle performance, greater wind resistance or increased security please see our Heavy-Duty Steel Service Door page. 

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All rolling doors are designed to withstand up to 80 mph winds and can be upgraded for more severe weather conditions Curtains can be ordered in standard grey or in tan with contrasting black guides and footpiece.

A galvanized steel finish is also offered providing the look and protection of stainless steel without the cost.

Standard Duty Service Door Features

Standard Duty Steel Service Door Options

Increased Windload Capacity: curtain designs to withstand windloads exceeding 20PSF
Perforated Slats: 3/64″ diameter holes on 5/64″ staggered centers in type 25 slats provide 30% open area for ventilation and visibility throughout the curtain
Extruded Aluminum Curtain Type 24ETOptional thick-line, 11 gage extruded aluminum slat for exceptional corrosion resistance, durability, strength, and beauty. Available in standard mill finish or optional anodized clear or bronze for architectural needs.
Extruded Aluminum Curtain Type 24ES: Optional slim-line, 15 gage extruded aluminum slat for exceptional corrosion resistance, durability, and beauty. Lightweight design for use on service doors up to 16; wide. Available in standard mill finish or optional anodized clear or bronze for architectural needs.
Vision Lites: single or multiple 3″ wide cutouts, open for ventilation or covered with acrylic
Intermediate Grille: partial grille curtain connecting type 30 slats above and below
Sloped or Stepped Footpiece: for special sill conditions
Cylinder Locks: on footpiece or guide
Pass Door: 3′-0″ x 7′-0″ x 1 3/4″ thick hollow metal grey primed (black optional) door in a steel frame for access through the curtain when closed; frame is hinged to guide and swings clear to allow use of entire door opening when curtain is raised; Standard hardware includes lever lock with optional deadbolt; handicap option, custom sizes, windows and special hardware available
Galvanized Finish: on footpiece, guides, brackets and barrel
Safety Bearing: This unique safety device functions as both a bearing and inertia brake for motorized service doors and grilles. The safety bearing is designed to prevent the curtain from free-falling if there is damage to or failure of the motor operator, drive chain or spring assembly. If a malfunction occurs and the downward speed increases to an unsafe rate, the inertia brake absorbs the added energy and safely stops the load.
Powdercoat Finish: a durable and decorative finish for steel or aluminum surfaces. It provides longer life and requires less maintenance than a standard finish. Powder coating is available in a variety of colors for use on many products. Consult factory for color selection, applications and limitations.

Standard Duty Steel Door Model Designations

By Method of Operation – Face of Wall Mount
 
DFP – Push-Up
DFC – Chain
DFT – Thru-wall chain
DFA – Awning Crank
DFB – Crank Box
DFM – Motor
For Between-Jamb Mount, change letter ‘F’ to ‘J’.

Standard Duty Steel Door Slat Options

Type 30 Large Curved Slat

Standard curved slat for use on all service doors where strength and durability are a consideration. Available in 24, 22, 20, or 18 gage galvanized steel. Also, for use on all fire doors

Type 20 Small Curved Slat

Optional curved slat for use on service doors to 16′ wide. Available in 22 or 20 gage galvanized steel. Also, for use in fire doors to 15′ wide.

Type 24ET  Aluminum Extruded Slat

Optional thick-line, 11 gage extruded aluminum slat for exceptional corrosion resistance, durability, strength, and beauty. Available in standard mill finish or optional anodized clear or bronze for architectural needs.

Type 25 Large Flat Slat

Standard flat slat for use on all service doors where environmental conditions are a consideration. Available in 24, 22, 20, or 18 gage galvanized steel. Also for use on all fire doors, especially those requiring gasketing.

Type 18 Small Flat Slat

Optional flat slat for use on service doors to 16′ wide. Available in 22 or 20 gage galvanized steel or 22 gage stainless steel. Also, for use on fire doors to 15′ wide, counter fire doors and counter doors

Type 24ES  Aluminum Extruded Slat

Optional slim-line, 15 gage extruded aluminum slat for exceptional corrosion resistance, durability, and beauty. Lightweight design for use on service doors up to 16; wide. Available in standard mill finish or optional anodized clear or bronze for architectural needs.

Steel slats are galvanized per ASTM standards,treated for paint adhesion and pre-finished before forming with a prime coat and baked-on grey or tan polyester top coat.

Standard Duty Service Door Mounting Details

Large Flat Slat # 25

Large Curved Slat # 30

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