Model 421 is and non-insulated door featuring Miami-Dade certifications for static pressures and impact. Constructed of 20-gauge steel and designed with 4” horizontal struts to enhance door strength and performance.
Standard max width 14'2" (4318 mm)
Standard max height 24'1" (7341 mm)
Warranty1 year limited
Nominal thickness 2" (51 mm)
Exterior surface Ribbed
Struts4" horizontal strut (doors over 10'2" wide)
Interior colorWhite
Standard springs 10,000 cycles
Standard track2" (51 mm)
Weather Stripping Flexible PVC bottom with retainer
Joint profile Tongue-and-groove
Wind LoadCertified to meet Miami-Dade wind load requirements.