• Lifetime sealed ball-bearing rollers*
• Commercial-grade reverse angle shields*
• Case-hardened fasteners
• 14 gauge steel hinges
• 10 gauge steel roller brackets*
• 14/17 gauge hemmed-rolled edge tracks
• 100,000 cycle rating on hardware*

  (Supersteel & Montana doors have some lighter gauge components - see dealer for comparison chart)

Martin Spring System

• 30,000 cycle galvanized springs - Torsion Spring
• 1/8 inch lift cables (2,000 lb capacity)
• Torsion bearings have permanent grease (needs no lubrication)
• Lifetime Warranty  (See warranty page for details)

Competitor's Spring System

• Typically rated between 5,000-10,000 cycles
• 3/32 inch lift cables
• Oil-tempered, non galvanized
• Bearings need regular lubrication
• Typical warranty 1-3 years

• Five standard enamel colors, 
  two-coats baked-on enamel
• Seventy-seven powder coat finishes

After three years of Saudi Arabian weather. 
These two doors were installed at the same time.