1. 1. COMMERCIAL ROLLING FIRE DOORS 
      
      
      

      The 640 and 641 Series Doors are ideal for openings requiring a counter-type fire-rated door. Common applications include factories, schools, concessions, hospitals, cafeterias and retail settings. Labeled with either a 3-hour Class A rating for masonry fire walls, these doors are designed to expand upward in a fire, allowing the guides to be installed flush with the sill. 

      The 640 Series Door features 22-gauge primed galvanized steel and is ideal for applications where safety is as important as style.  These NFPA-80 compliant doors are labeled with either a 3 hour UL Class A label for masonry applications, or 1-1/2 hour UL Class B label for non-masonry fire walls (a 3 hour non-masonry UL label is available upon request).  Oversize UL labels are available for certain applications.  A host of standard and optional features further improve performance of these doors beyond the norm in fire-rate applications. 

      The 641 Series door features 22-gauge stainless steel and is ideal for applications where safety is as important as style.  These NFPA-80 compliant doors are labeled with either a 3 hour UL Class A label for masonry applications, or a 1-1/2 hour UL Class B label for non-masonry fire walls (a 3 hour non-masonry UL label available upon request).  A host of standard and optional features further improve performance of these doors beyond the norm in fire-rate applications. 

      

      OVERHEAD DOOR COMPANY OF NORTHEAST ARKANSAS would like to help you with all your commercial door repairs or replacements.  We are conviently  located in Jonesboro Ar.   We have service trucks that run daily throughout Arkansas.  Call us today - why wait - 870-336-3667. 

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Overhead Door Corporation’s Knock & Lock^®Breakaway Door System is the industry’s only self-resetting, impact-resistant dock door available. The rugged Knock & Lock^® is designed for higher productivity, energy efficiency and costs 35% less than a complete breakaway door, making it the ideal choice for any dock environment. In addition, the Knock & Lock^®Breakaway Door System offers a rugged, puncture-proof interior skin with a steel exterior for years of trouble-free service. Every panel is polystyrene insulated to 2 inches, providing an R-value of 8.56, and has dual slide locks on the bottom section for security. Every Knock & Lock^®Breakaway Door System is backed by an industry leading 10 year limited warranty. Whether the application requires a breakaway door system or simply breakaway sections for retrofit applications, the Knock & Lock^®Breakaway Door System is the perfect solution for facility managers and architects alike.

Knock and Lock Advantages:

The Knock & Lock self-resetting impact resistant breakaway door system is designed to increase productivity by eliminating costly downtime, door repairs and replacements to keep your facility operating smoothly and efficiently. Knock & Lock is ideal for both new construction and retrofit applications. Performance and Durability Knock & Lock is designed to provide reliable performance for many years and is backed by an industry-leading warranty:
• 10-year retractile cord warranty
• 10-year puncture warranty
• The automatic reset keeps your doors operating after  
impact to eliminate downtime and associated costs
• Breaks away with little force for system longevity
• Single/dual panel breakout (breaks in and out) for  
additional impact-resistance and door system durability
• Puncture-resistant interior skin and steel exterior for  
durability and longevity
• Polystyrene insulation in every section with an R-value of
8.56 for energy-efficiency (U-value .12)
• Dual slide locks standard on each section for extra security
• Wind load up to +43/-50 psf (depending on section width) 
is standard to satisfy application requirements in a variety 
of environmental conditions (Stated wind load is for Knock 
& Lock sections, not entire door. Remaining door sections
may require additional reinforcement depending on size if
wind load is required for the application.)
• Can be field-painted with latex paint to complement the
look of your facility
• 2” rollers for smooth operation
• 3” roller option for additional durability in demanding,
high traffic volume applications
• Available in 6’2”, 8’2”, 9’2”, 10’2”, 11’2”, 12’2” and 16’2”*
section widths and in 24” and 21” section heights to  
satisfy a wide variety of applications