Extreme® 300 Series High Performance Rolling Door

High Performance Doors

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

High Speed Overhead Door

Need a precision garage door? Get intelligent operation and high cycle life in a high performance roll up door. Our easy to install 300 series overhead commercial garage door offers 300,000 cycles of maintenance free performance. Improve your productivity with maximum uptime wherever it’s installed. Featuring a springless overhead door design, it is ideal for industrial rolling door applications that do not need a million cycle door, but do require continuous uptime.

Our Apex™ Smart controller features an intelligent control panel with plug and play wiring that makes installing and servicing the 300 series rolling door easier than ever before.

The commercial roll up door’s compact operator features smooth high speed operation that ensues a soft start and stop – reducing wear and tear on both the overhead door and the rolling door operator. When you need high speed doors, our 300 series high performance door operates at speed of up to 24 inches per second. With the operator’s direct drive design, there’s no sprocket and chain to wear or replace.

Faster rolling doors mean reduced air exchange, but our 300 series overhead door goes further to improve energy efficiency. Insulated high performance door models feature our patented Thermiser Max rolling door perimeter sealing system – which meets ASHRAE® 90.12, 2015 IECC® and California’s Title 24 air infiltration requirements with an independently tested value of  ≤0.3 cfm/ft2.

When you need a rapid opening, precision garage door, our Extreme 300 Overhead high performance door is the only commercial garage door you will ever need!

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!


Standard Materials & Finishes

Extreme® Series Door Drive & Control System



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.