• Two large white Thermacore sectional doors with small horizontal windows, set in a brick building with concrete pavement in front, under a blue sky.

Thermacore® Sectional Steel Doors - 593

Rolling Security Shutters

Model 593

An ideal choice for applications that demand the highest levels of thermal efficiency and air infiltration.

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Overview of the Thermacore® Sectional Steel Doors

The Thermacore® Sectional Door Model 593 is one of the best-selling doors in the Thermacore® line, and offers superior thermal efficiency to fit a broad range of applications. The Model 593 exterior skin is constructed of galvanized steel with a ribbed, textured finish. It is available with a white interior finish and a choice of white, industrial brown, tan or gray exterior. The Thermacore® Model 593 offers excellent thermal efficiency for medium-duty applications.

A simple black and white line drawing of a bicycle, shown from the side. The illustration clearly displays the wheels, frame, handlebars, seat, pedals, and chain.

Wide array of 
stained and painted finishes

A person sits cross-legged on the floor meditating, with hands resting on their knees. A large clock is behind them, symbolizing mindfulness and taking time to meditate. The background is blank.

Wood-grain
texture

A stick figure sitting at a desk raises its arms in frustration while looking at a computer monitor, with a slanted desk lamp overhead.

Customize with windows and hardware

A person in a wheelchair is depicted ascending a flight of stairs using a stair lift, illustrating accessibility solutions for individuals with mobility impairments.

Superior thermal performance

A black cat sits on a windowsill, looking outside. Sunlight streams through the window, casting a warm glow on the cat’s fur and the surrounding area. Lush green trees can be seen outside the window.

Superior 
durability

A silhouette of a person with their head resting on their hand, appearing thoughtful or contemplative.

Wind load options
upon request

Construction

Product Specifications

U Factor
.15
R Value
12.76 (2.26 m2/W)
Section Thickness
1 3/8″ (35 mm)
Material
Steel
Material Gauge
.015″ (.38 mm) galv.
Max Width
20’2″ (6147 mm)

Get inspired

Explore our photo galleries to get inspired for your new residential or commercial door.

SEE GALLERY
View through large windows of a fire station showing several red fire trucks parked in a well-lit garage, with equipment and tools visible in the background.
A modern building with large glass garage doors labeled SERVICE above the entrance, likely a service center or auto repair shop, with a paved sidewalk in front.
Interior of an industrial facility with metal tracks running down the center, surrounded by machinery, tools, and workbenches. A large yellow crane is mounted overhead, and the space is brightly lit with high ceilings.
A suburban house with a decorative double garage door, surrounded by landscaped bushes, colorful flowers, and trimmed shrubs. The driveway is paved, and the house features tan siding with brick accents.
A modern house exterior with stone walls, a wooden garage door featuring rectangular windows, a balcony with a metal railing, and stairs on either side leading to the entrance.
Modern house with stone and wood siding, large windows, two gray garage doors, and a spacious driveway under a partly cloudy sky.
Modern white two-story house with black-framed windows, wooden accents, and a metal roof. There is a three-car garage with glass doors and a landscaped front yard with small trees and bushes under a clear blue sky.
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