Bi-folding Door Span Chart

BI-FOLDING DOOR SPAN CHART

AluK has now released an update to the folding sliding door with regards to the maximum panel spans allowable i.e. 1000mm panel widths have now been increased to a maximum of 1200mm. See update span chart below:

600 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

800

 2800

1000

 2600

 1200

 2400

 1200

 2200

 1200

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

800 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

600

 2800

800

 2600

 1100

 2400

 1200

 2200

 1200

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

1000 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

500

 2800

650

 2600

 850

 2400

 1100

 2200

 1200

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

1200 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

400

 2800

550

 2600

 700

 2400

 1000

 2200

 1200

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

1400 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

-

 2800

450

 2600

 600

 2400

 850

 2200

 1200

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

1600 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

-

 2800

400

 2600

 550

 2400

 750

 2200

 1050

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

1800 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

-

 2800

-

 2600

 450

 2400

 650

 2200

 950

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

2000 Pa 

P-06-200

Ixx = 68.1

Max. Panel Widths (mm)

3000 

-

 2800

-

 2600

 400

 2400

 600

 2200

 850

 2000

 1200

 1800

 1200

 1600

 1200

 1400

 1200

 1200

 1200

 1000

 1200

 

 

IMPORTANT NOTE:

When processing door panel widths up to 1200mm the following design criteria must be taken into account:

  • Site Location / Wind load (Pa)
  • Glass Weight (Maximum glass weight per panel 100kg)
  • Door Height
  • Max. Profile Inertia (E.g. P-06-200 /P-06-200 = 68.1 cm^4)

If the wind load/design criteria requires a profile inertia value greater than 68.1cm^4 then either the panel widths/span or height may have to be reduced. The profile inertia value determines the maximum deflection allowable i.e. 3mm. All calculations are in accordance with BS 6375.

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