• Interior of a clean, empty garage or service bay featuring three large aluminum glass doors, yellow and red safety bollards, and industrial equipment set against pristine white walls.
  • Entrance to a modern building with an aluminum glass door and a large garage-style glass door, both set in a light brick wall. Four yellow bollards stand in front of the garage door, while reflections shimmer on the sleek glass surfaces.
  • The image shows the exterior of an auto service center with three 521s Aluminum Glass Doors labeled Express Service, Service Reception, and Service Reception. Four yellow bollards stand in front of the doors on a paved driveway.

Aluminum Glass Door - 521s

Model 521s

An excellent solution for applications where visual access and light transmission are key considerations.

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Overview

EverServe® Aluminum Glass Door model 521S is a sectional aluminum door appropriate for environments where maximum light infiltration and/or visual access is required. Designed to fit openings up to 20’2″ (6147 mm) wide and 18’1″ (5512 mm) high, the Model 521 features a wide, 2-11/16″ (68 mm) center stile, 3-3/4″ (95 mm) or 4-1/2″ (114 mm) bottom rail, based on door size.

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

Colors

Anodized Finishes

Solid brown textured surface with a matte finish, showing faint lines and subtle variations in shading, resembling fabric or suede material.

Medium Bronze

A plain, light gray background with no visible objects, text, or patterns.

Clear (standard)

A close-up view of a flat, textured surface in a solid, muted brownish-green color. There are no distinct patterns or objects visible.

Light Bronze

Brown textured surface with a slight gradient from darker at the top to lighter at the bottom, featuring subtle horizontal lines across the image.

Dark Bronze

Actual door color may vary slightly from the digital representation above. Color samples are available by request through your local Overhead Door™ Distributor.

Enhancements

  • Wind load options available
  • Lock: Interior galvanized single unit with interlock
  • Finish options:
    • Bronze anodization
    • Anodized or Painted
    • PowderGuard® Premium powder coat and PowderGuard® Max hardened powder coat available in approximately 200 colors as well as color-matching to specification
    • PowderGuard® Textured Finish: Industrial textured powder coat provides a thicker, more scratch-resistant coat for added product protection on guides, bottom bar and head plate
  • Operation options:
    • 208 volts, single phase, 60 Hz (190-207V range)
    • 208 volts, three phase, 60 Hz (190-207V range)
    • 230 volts, single phase, 60 Hz (208-245V range)
    • 230 volts, three phase, 60 Hz (208-245V range)
    • 460 volts, three phase, 60 Hz (456-495V range)
    • 575 volts, three phase, 60 Hz (517-632V range)
  • Accessory Options
    • Receivers/transmitter’s/Radio control
    • Loop detectors/motion detectors
    • Additional push button station/Treadle switch/Horn/Strobe
    • Key switch/Traffic light/Warning light/LED system break
    • Cover/Gearbox heater/Transformer 9KVA
    • Coil-cord kit/Hand chain extension/Hoist switch extension
    • Photo-eye
  • Window Glazing Options:
    • 1⁄8″ (3 mm) DSB
    • 1⁄8″ (3 mm) or 1⁄4″ (6 mm) acrylic
    • 1⁄8″ (3 mm) or 1⁄4″ (6 mm) tempered
    • 1⁄8″ (3 mm) or 1⁄4″ (6 mm) clear polycarbonate
    • 1/4″ (6 mm) and 3/8″ (10 mm) twin-wall polycarbonate. 5/8″ triple-wall polycarbonate
    • 1⁄4″ (6 mm) 3/8″ (10mm) and 5/8″ (16mm) twin-wall polycarbonate, triple-wall polycarbonate 1/4″ (6mm) wire glass
    • 1⁄2″ (12 mm) insulated glass

Brochures

EverServe® 521S Brochure

Download PDF

EverServe® 521S Dimension Chart Sectional Framing Pads

Download PDF

EverServe® 521S Sectional Track Dimension Chart

Download PDF

Documents

Explore the full specifications of our products. Our technical data sheets provide comprehensive information on dimensions, assembly methods, and construction requirements. Make well-informed decisions by planning your investment down to the last detail.

BIM

EverServe® Aluminum Glass Door 521s - BIM Model

Download BIM

Shop Drawing

Aluminum Full View Sectional Door Model 521S CAD (DWG)

Download DWG

Aluminum Full View Sectional Door Model 521S CAD (PDF)

Download PDF

Specifications

EverServe® 521S Specs

Download PDF
Download DOC

Product Literature

EverServe® 521S Dimension Chart Sectional Framing Pads

Download PDF

EverServe® 521S Sectional Track Dimension Chart

Download PDF

EverServe® 521S Brochure

Download PDF

Warranty

EverServe® 521S Warranty

Download PDF

Warranty

1-year limited

Construction

Product Specifications

Standard Max Width20’2″ (6147 mm)
Standard Max Height18’1″ (5512 mm)
Section thickness1 3/4″ (45 mm)
Material6061-T6 aluminum
Standard finish204R-1 clear anodized(painted white at no charge)
Center stile width2 11/16″ (68 mm)
End stile width3 5/16″ (84 mm)
Top rail width2 3/8″ (60 mm) or 3 3/4″ (95 mm)
Top intermediate rail width2 1/8″ (54 mm)
Bottom intermediate rail width1 19/32″ (40 mm)
Bottom rail width3 3/4″ (95 mm) or 4 1/2″ (114 mm)
WeathersealsBottom, flexible PVC
Track3″ (76.2 mm)
Control PanelElectronic controller with micro-processor self-diagnostics. Digital readout, time delay self-close timer and non-resettable cycle counter. Enclosure is IP54 rated (NEMA 3 equivalent)
MountingSide mount, left or right, vertical only
OperationDirect drive integrated gear/motor/brake assembly; Drive assembly and limit sensors are factory pre-assembled; Manual hand chain for power outage; Horsepower appropriate to door size/weight; 230V AC 3-phase motor (operating range 208-245V)
Hinges and fixturesGalvanized steel
RollersNylon (Standard)
Steel (Windload)
ActuatorSingle open/close/stop push button station incorporated into control panel
AccessoriesCable tension switches LH/RH
Hand chain switch on motor
Encoder plug and play
8-port junction box

*U-factor values are independently tested and verified per ANSI/DASMA 105.
**Overhead Door™ Brand uses a calculated door section R-value for our insulated doors.

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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