aluminum-glass-door-5211

521 Series

The 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.

Section thickness

1 3/4″ (45 mm)

Maximum standard width

26’2″ (7976 mm)

Maximum standard height

20’1″ (6121 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) or3 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