Non-Insulated WindStorm™ Sectional Door 421 Model 421

Non-Insulated WindStorm™ Sectional Door 421 Model 421

WindStorm™ Commercial Sectional Door 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.


Product Specifications 
Standard Max Width14'2" (4318 mm)
Standard Max Height24'1" (7341 mm)
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 Load Certified to meet Miami-Dade wind load requirements.


  • 1 year limited

Exterior Color

  • white color swatch


  • Chain hoist operation
  • Motor operation
  • High Cycle Springs - 25k, 50k, 100k
  • 3” track option
  • Solid shafts
  • Perimeter weather seal
  • Broken cable devices
  • Safety edges
  • Safety photo eyes
  • Impact glazing 12” x 10”
  • Security locks
  • Exhaust ports