• A closed beige Thermacore industrial garage door, Model 850, features three rectangular windows near the top and two yellow protective bollards on either side of the entrance.
  • Large brown Model 850 industrial garage door with four small rectangular windows is set in a light gray metal building with vertical siding. Concrete pavement leads up to the Advanced Performance Door, and two wall-mounted lights are visible above.
  • Interior view of an industrial garage with a large Thermacore Model 850 roll-up door featuring six small windows, metal walls, a gray door with an exit sign, and bright overhead lighting.
  • A beige commercial building with three large Thermacore Model 850 garage doors, each featuring four rows of windows, sits under a clear blue sky. The surrounding area is paved with concrete and asphalt.

Thermacore® Advanced Performance Door - 850

Rolling Security Shutters

Model 850

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

CALL (608) 271-4288
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Overview

Thermacore® AP Door Model 850 is engineered to deliver advanced performance in commercial and industrial applications where climate control, durability and ease of maintenance are primary concerns. This sectional steel door system presents the most advanced thermal performance values published by any major US manufacturer of 3″ commercial insulated sectional doors.

The Thermacore® AP door system’s advanced performance answers the demand for more thermal efficiency, reliability, durability and design flexibility. The 850 door is the ideal choice for thermal protection against heat or cold in heavy duty applications, including: agricultural buildings, food and beverage storage facilities, pharmaceutical facilities, climate controlled facilities, industrial manufacturing facilities, government facilities, and shipping and receiving docks.

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
.07
R Value
26 (4.58 Msq/W)
Section Thickness
3″ (76.2 mm)
Material
Steel
Material Gauge
.015″ (.38 mm)
Max Width
40’2″ (12,243 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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