599 series


With an R-value of 17.5 (3.09 W/m2) a U-value of .057 (.324 m2/W), and one of the best overall air infiltration ratings in the industry, the Thermacore® Sectional Steel Door Model 599 is one of the most thermally efficient door systems in its class. The Model  599 doors also carry a Class 26 sound transmission rating for applications where sound suppression is desirable.​

The Thermacore® 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.

Standard max width 
40'2" (12,243 mm)

Standard max height 
32'1" (9,779 mm)

Panel thickness
2" (51 mm)

17.5 (3.09 W/m2)

.057 (.327 m2/W)

Sound Transmission Class 26
Ideal for applications that require sound control

Air infiltration
at 15 mph (24 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)
at 25 mph (40 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)

Thermal break 

Exterior Steel
.015" (.38 mm) galv.

Exterior Surface 
Flush, textured

Standard Springs 
10,000 cycles

Wind Load 
Designs available for usage in high-wind conditions

10 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)
20 year limited on high performance fluoropolymer coating option ​​

Door Options