Aluminum Glass Doors 521
Model 521
Aluminum Glass Door model 521 is a sectional aluminum door appropriate for environments where maximum light infiltration and/or visual access is required. Designed to fit openings up to 26’2″ (7976 mm) wide and 20’1″ (6121 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.
Categories: Aluminum Glass Doors, Sectional Doors
Overview
Construction
| Product Specifications | |
|---|---|
| Standard Max Width | 26’2″ (7976 mm) |
| Standard Max Height | 20’1″ (6121 mm) |
| Section thickness | 1 3/4″ (45 mm) |
| Material | 6063-T6 aluminum |
| Standard finish | 204R-1 clear anodized(painted white at no charge) |
| Center stile width | 2 11/16″ (68 mm) |
| End stile width | 3 5/16″ (84 mm) |
| Top rail width | 2 3/8″ (60 mm) or 3 3/4″ (95 mm) |
| Top intermediate rail width | 2 1/8″ (54 mm) |
| Bottom intermediate rail width | 1 19/32″ (40 mm) |
| Bottom rail width | 3 3/4″ (95 mm) or 4 1/2″ (114 mm) |
| Weatherseals | Bottom, flexible PVC |
| Standard springs | 10,000 cycle |
| Track | 2″ (51 mm) |
| Mounting | Angle |
| Operation | Manual pull rope |
| Hinges and fixtures | Galvanized steel |
| Lock | Galvanized, interior-mounted single unit |
Warranty
- 1-year limited
Options
Anodized Finishes

Clear (standard)

Light Bronze

Medium Bronze

Dark Bronze

Black
Powder Coat Color Options
PowderGuard® Premium powder coat options are available in approximately 200 colors as well as custom matching to specification.

Glass Options

Double Strength (DSB)

Gray Tint

Satin Etched

Obscure

Green Tint

Bronze Tint

Impact Frosted Polycarbonate
- Electric operator or chain hoist
- Bottom sensing edge
- 3″ track
- Bracket mounting (not available on full vertical door tracks)
- Higher-cycle springs in 25k, 50k, 75k, 100k cycle
- Exhaust ports
- Polyurethane insulation available in the rails and stiles
- R-value up to 4.1 depending on glazing choice
- Higher-cycle springs in 25k, 50k, 75k, 100k cycle
- Four-section pass door
- Wind load options available
- Finish options:
- Bronze anodized
- Select from 197 standard powder coat colors or colored to match specification
- 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) multi-wall polycarbonate
- 1⁄4″ (6 mm) wire glass
- 1⁄2″ (12 mm) insulated glass
Read instructions on how to clean polycarbonate windows
Brochures
Documents
Aluminum Glass Door
Related products
Sectional Steel Door Model 420
Model 420
Sectional steel door model 420 is designed for heavy-duty use in a variety of commercial and industrial applications. The Model 420 door features a 2" (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and a white paint finish. This 20-gauge steel door is available in sizes up to 31´2" (9500 mm) in width and 24´1" (7341 mm) in height. Numerous options including weatherstripping, reinforced struts, movable center posts, and motor operation allow these heavy-duty doors to meet nearly any project requirements.
Sectional Steel Door Model 430
Model 430
Sectional steel door model 430 is available in sizes up to 20´2" (6147 mm) in width and 16´1" (4902 mm) in height for a variety of medium-duty applications. These doors feature a 2" (51 mm) panel thickness and a nominal 24-gauge, ribbed, white galvanized steel exterior with 16-gauge steel intermediate and end stiles (Industrial Brown exterior is available). The Model 430 is customizable to any project specification with a variety of additionally available options.
Sectional Steel Door Model 432
Model 432
Sectional steel door model 432 offer a 2" (51 mm) panel thickness, a nominal 24-gauge ribbed galvanized steel exterior, and a poly-bonded back cover. Polystyrene insulation provides an R-value of 7.35. A variety of options makes this door an economical solution for applications requiring a medium-duty insulated steel door.
Sectional Warehouse Doors
Model 403
Our Sectional Warehouse Doors provide a highly efficient design for strength and longevity for use in demanding commercial settings. They feature full 2” thickness for ultimate strength and durability. Optional insulation consists of 1 5/16” expanded polystyrene throughout the door. Both steel and polylaminate backer choices are available to ensure these models are well-suited for a wide range of applications.
Sectional Warehouse Doors
Model 404
Our Sectional Warehouse Doors provide a highly efficient design for strength and longevity for use in demanding commercial settings. They feature full 2” thickness for ultimate strength and durability. Optional insulation consists of 1 5/16” expanded polystyrene throughout the door. Both steel and polylaminate backer choices are available to ensure these models are well-suited for a wide range of applications.
Thermacore® Sectional Steel Door – 592
Model 592
The Thermacore® Model 592 offers superior thermal efficiency for heavy-duty applications. It is an ideal choice for applications that demand the highest levels of thermal efficiency, air infiltration, and wind load resistance.
With a U-factor of .10 (R-value of 17.5) and one of the best overall air infiltration ratings in the industry, the Thermacore® Model 592 is one of the most thermally efficient door system in its class.
The Thermacore® product line features steel-polyurethane-steel panel construction which provides a thermal barrier that withstands extremely hot or cold climates and the most demanding environmental requirements.
The Model 592 has 2" (51 mm) thick, extra heavy-duty sections that are available in standard sizes up to 40'2" and 32'1" (12,243 mm and 9,779 mm) to fit the broadest range of applications.
Thermacore® Sectional Steel Door – 596
Model 596
The Thermacore® Sectional Door Model 596 is ideal for extra heavy-duty applications where both thermal efficiency and sound suppression are desirable. The 596 is constructed of 20-gauge galvanized steel with a flush, textured finish. The sectional steel door model 596 incorporates the Thermacore® steel-polyurethane-steel panel construction, which provides a thermal barrier to withstand harsh climates and demanding environmental requirements.
