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