Deflection Data

Utilise the following table to select the appropriate grating profile for your application and project specifications.

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INCORRECT
INCORRECT SPAN & LOAD BAR DIRECTION
CORRECT
SPAN & LOAD BAR DIRECTION CORRECT
ALUMINIUM GRATING LOAD TABLE

Spans in the darker shading (to the left of the heavy line) have a deflection of less than 5mm for a 4kPa uniformly distributed load.
Mass shown are untreated and unbanded.
Banding will increase the the mass as follows;
A/B Pattern 10% nominal
C/D Pattern 12% nominal
F Pattern 14% nominal
Load deflection tables are arranged in rising strength order.  See the 4kPa, 5mm deflection column.
U = Superimposed uniformly distributed load in kPa (100kg/m2 = 0.98kPa)
D = deflection in mm for the load U
Assumptions for load capacity is on single spans.
Recommended minimum landing is equal to grating depth (minimum 25mm).

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