Thermacore® Sectional Steel Door – 598
Model 598
The Thermacore® Sectional Door Model 598 is a an exceptionally well-built door that provides a higher level of thermal protection than standard insulated doors. This premium insulated sectional door represents an economical choice for lighter-duty applications.
Categories: Sectional Doors, Thermacore® Sectional Steel Doors
Overview
Construction
| Product Specifications | |
|---|---|
| Standard Max Width | 16’2″ (4,928 mm) |
| Standard Max Height | 14’1″ (4,293 mm) |
| Panel thickness | 1″ (25.4 mm) |
| U-factor* | .20 |
| R-value** | 9.31 (1.64 W/m2) |
| Air infiltration | at 25 mph (40 kmp/h) .46 cfm/ft2 (8.40 m3/hr/m2) |
| Thermal break | Hot melt |
| Exterior Steel | .012″ (.3 mm) galv. |
| Exterior Surface | Ribbed, textured |
| Standard Springs | 10,000 cycles |
*U-factor values are independently tested and verified per ANSI/DASMA 105.
**Overhead Door uses a calculated door section R-value for our insulated doors.
Warranty
- 8 year limited delamination
- 1 year limited on door
- 3 year/20,000 cycle limited on door & operator system (when purchased together; on material and workmanship)
Options

Ribbed Panel
Actual door color may vary from the digital representation shown here. Color samples are available by request through your Overhead Door™ Distributor.
Exterior Colors

White
- Chain Hoist or Electric Operator is recommended for doors above 10’ tall or more than 400 pounds
- Thermal glazing
- High-usage components
- Wind load options
- Electric operator
- Chain hoist
- Posi-Tension™ drums
- Safety bottom fixture
- Flexible jamb, header seal
- Photo eyes
- Window Glazing Options
Documents
Thermacore® Sectional Steel Door
Related products
Aluminum Glass Door – 521s
Model 521s
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.
Aluminum Glass Door – 522
Model 522
Aluminum Glass Door model 522 is designed in sizes up to 18’ 2” (5486 mm) wide and 14’ 1” (4318 mm) high. This aluminum full-view door, featuring a frameless design, is ideal for restaurants, auto dealerships and any application where the door needs to integrate seamlessly with the aesthetics of the building. Available with five glass options.
Sectional Steel Door Model 416
Model 416
Sectional steel door model 416 is strong, durable and versatile. Designed for heavy-duty commercial and industrial applications, this door is available in 16-gauge galvanized steel, in sizes up to 32'2" (9804 mm) width and 21'1" (6426 mm) in height. Available with an array of options, the Model 416 can be easily customized to meet any project requirement where an extra heavy-duty door is required.
Sectional Steel Door Model 418
Model 418
When your project requires a solid sectional steel door system that will hold up to heavy use, rough handling and extreme conditions look to Overhead Door™ 418 to pack an extra measure of toughness. Fabricated of 16-gauge, flush galvanized steel exterior and 26-gauge steel back cover, these 2" (51 mm) thick doors offer an R-value of 7.35 (1.29 W/m2). A wide array of options allow these doors to meet the most stringent project requirements that call for a degree of thermal efficiency.
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 424
Model 424
Section Steel Door model 424 are designed for heavy-duty use in a variety of commercial and industrial applications. This door features a 2" (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and a white paint finish. The Model 424 is available in sizes up to 30´2" (9195 mm) in width and 24´1" (7341 mm) in height, and is also available in Industrial Brown. Numerous options including weather stripping, reinforced struts, movable center posts and motor operation allow these heavy-duty doors to meet nearly any project requirements.
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.
Thermacore® Sectional Steel Door – 591
Model 591
When your project requires a sectional door with an exceptional degree of thermal efficiency, the Thermacore® Sectional Steel Door Model 591 is a proven performer. The Thermacore® steel-polyurethane-steel panel construction provides a thermal barrier that withstands extreme climatic conditions and the most demanding environmental requirements.
This 1 5/8” (41 mm) thick, heavy duty door fits a wide range of opening sizes and the spectrum of applications — making it the best-selling door system in the Thermacore® line and one of the most-specified insulated sectional doors in the industry. Boasting a U-factor of .13 (R-value-14.86) and one of the best air infiltration ratings, the Thermacore® 591 will meet or exceed almost any thermally efficient application requirement.
