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521 Series

521 Series is a sectional aluminum door appropriate for environments where maximum light infiltration and/or visual access is required. Designed to fit openings up to 26'2" (7976 mm) wide and 20'1" (6121mm) high, the 521 Series features a wide, 2-3/4" (70mm) center stile, 3-3/4" (95mm) or 4-1/2" (114mm) bottom rail, based on door size.

Standard Features At a Glance

Panel thickness 1 3/4" (45mm)
Max. standard width 26'2" (7,976 mm)
Max. standard height 20'1" (6,121 mm)
Material 6063-T6 aluminum
Standard finish 204R-1 clear anodized
(Painted white at no charge)
Center stile width 2.712" (69 mm)
End stile width 3.350" (85 mm)
Top rail width 2 3/8" (60 mm) or 3 3/4" (95 mm)
Top intermediate rail width 2 1/8" (54 mm)
Bottom intermediate rail width 1 19/32" (40 mm)
Bottom rail width 3 3/4" (95 mm) or 4 1/2" (114 mm)
Weatherseals Bottom, flexible PVC
Standard springs 10,000 cycle
Track 2" (51 mm)
Mounting Angle
Operation Manual pull rope
Hinges and fixtures Galvanized steel
Lock Galvanized, interior-mounted single unit

Options

  • Glazing options*: 1/8" (3 mm) DSB; 1/8" (3 mm) or 1/4" (6 mm) plexiglas; 1/8" (3 mm) or 1/4" (6 mm) tempered; 1/8" (3 mm) or 1/4" (6 mm) clear lexan; 1/4" (6 mm) wire glass; 1/2" (12 mm) insulated glass Note: 1/4“ glass and 1/2“ insulated glass up to 14'2' wide only
  • Electric operator or chain hoist
  • Bottom sensing edge
  • 3" track
  • Bracket mounting (not available on full vertical)
  • Higher-cycle springs in 25k, 50k, 75k, 100k cycles
  • Exhaust ports
  • 197 standard powder or color matched to architect specifications
  • Bronze anodizing
  • Four-section pass door.