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Rugged DuraCoil service doors, with aluminum, steel, or stainless steel slats, in a variety of gauges, are built to last. DuraCoil rolling service doors are an ideal choice for commercial and industrial applications. And with five available slat types – flat, insulated flat, small contour, large contour or perforated – DuraCoil commercial doors offer a style to fit any application.


DuraCoil Features and Options

DuraCoil rolling service commercial doors are available with numerous features and options, including those listed below.

Curtain Hood

DuraCoil service doors feature a full-width, 24-gauge steel
hood to protect your investment. Optional on DuraCoil model LFF.

Guides and End Locks

Rugged steel angle guides provide maximum support for curtain slats. Zinc-plated, malleable cast-iron end locks prevent lateral movement of the curtain slats.

Counterbalance System

A smooth-running, torsion-spring operated system is packed into each barrel assembly. Industrial head plates and bearings provide long cycle life

Bottom Bar

Curtain bottoms are structurally reinforced with a minimum of two steel angles for maximum durability. A bottom astragal is included on all doors.


Each DuraCoil curtain is assembled with durable, heavy gauge slats in a variety of materials and gauges.

Security Locks

To keep your building secure, manually-operated DuraCoil doors are equipped with slide locks.

Head Plate Cover

Head plate covers are available for an attractive, finished appearance and help to protect your investment by keeping out dust and grime.

Vision Panels

For light transmission and visibility, choose 4″ x 1″ acrylic vision slots for flat and insulated flat curtain slats. Fenestrated curtains with open 4″ x 1″ slots are also available for flat slat curtains only.

High-cycle Applications

For years of reliable operation in heavy-use applications such as multi-tenant parking facilities, choose high-cycle torsion springs.

Pedestrian Doors

Pedestrian doors are designed for convenient entry and to help minimize energy loss.

Sound Transmission Class Rating

Sound Transmission Class rating applies to IF (Insulated Flat Slat) model only.
• STC 22 without header seal
• STC 23 with header seal.

IECC Compliance Option

DuraCoil insulated (IF) doors comply with the IECC requirements of a maximum air leakage rate of 1.0 CFM/FT2. DuraCoil (IF) door outperformed the IECC requirements by achieving an air infiltration rate of .47 CFM/FT2, and a tested U-Factor rating of 0.90 Btu/hr-ft2-F, both validated by an independent testing agency. This IECC compliance option includes a vinyl guide seal, rubber hood baffle and a rubber header seal.


Slat Finishes

Stainless Steel, Aluminum


White, Gray, Tan

>>Colors displayed on monitors, mobile devices, and printed materials will vary from the actual product color. 

ArmorBrite™ Powder Coat System

Many of your DuraCoil door’s metal components can be powder coated in any of 188 ArmorBrite colors to match any design scheme. Powder coating is available on the hood, door guides, head plates, and bottom bar.

ArmorBrite Color Chart

Slat Style Options

Flat Slats (FF)

The most architecturally pleasing slat profile, flat slats are ideal when weatherseal is used. Flat slats offer full visual access, multiple glazing options and wind load resistance in a rolling steel door designed to fit in a variety of opening sizes.

Large Contour Slats (LC)

Available in virtually unlimited widths, large contour slats are typically specified for larger-sized openings. Designed to withstand heavy use, DuraCoil Large-C Slat doors provide optimum security and wind load resistance.

Small Contour Slats (SC)

An excellent choice for smaller opening widths, small contour slats are the best value for opening sizes up to 14’ x 14’. DuraCoil Small-C Slat doors also offer optimum security and wind load resistance in a rolling steel door built to withstand the demands of high-traffic entryways.

Flat Insulated Slats (IF)

Available in several sizes, DuraCoil Insulated Flat Slat doors offer thermal efficiency, combined with superior visual access, glazing options and wind load resistance. Flat Insulated Slats have an R-Value of 8.0.

Light-Duty Flat Slat (LFF)

The Light-Duty Flat Slat door is ideal for projects with a limited budget, while still providing the security of a rolling steel door.

Flat Perforated Slats (FP)

DuraCoil Perforated Flat Slat doors are engineered for applications where airflow, visibility and security are desired while providing maximum ventilation and visibility.