Extreme® 300 Series Performance Door

High Performance Doors

Model Number: EPD 300 (service curtain) and EPI 300 (insulated curtain)

High Speed Roll Up Door

We're excited to introduce our Extreme® 300 Series Performance Door.  This high-speed, high-cycle door offers 300,000 maintenance-free cycles and the Apex SmartController - our first intelligent controller.  And, its insulated model boasts an air leakage rating of less than 0.3 cfm/ft2 - meeting and exceeding ASHRAE 90.1 and IECC 2015 air leakage standards - making it the most energy efficient high cycle rolling door available today.  

See if your building needs a high performance door by going to our microsite www.cornellcookson.com/nobrainerdoor/brains

Why the #$!@* is My Roll Up Door Breaking All the Time? Read our article to find out more!


Extreme® 300 Series Door Drive & Control System



Standard Materials & Finishes

Drawing Generator

Need to see clearances and mounting details? Enter your opening dimensions into our Drawing Generator, and get custom generated drawings of your door with all the details.
Insulated Door Drawing Generator
Service Door Drawing Generator

Codes & Listings
  • ISO 9001:2008
  • Buy America Compliance
  • LEED® Compliance
See Codes and Listings page for detailed information.