Mesh Sizes and Weight Gratings

Grating Type	Mesh Size (mm) c/c (AxB)	Load Bearing Bar (mm)	Weight untreated kg/m²	Weight Hot Dip Galvanized kg/m²
B9	12x100 12x100	25/3 30/3	49.0 58.3	51.5 61.2
N9	16x100 16x100 16x100 16x100 16x100 16x100	20/3 25/3 30/3 35/3 40/3 50/3	28.3 34.9 41.6 50.9 57.9 72.0	29.7 36.7 43.7 53.5 60.7 75.0
N4	17x50 17x50	20/2 25/2	21.2 23.8	22.9 25.8
N6	17x75 17x75 17x75	20/2 25/2 30/2	18.8 23.2 27.6	20.3 25.1 29.8
F4	25x50	80/5	130.7	137.2
H3	34x37 34x37 34x37 34x37 34x37 34x37 34x37 34x37 34x37 34x37 34x37 34x37 33x37 33x37 33x37 33x37	20/2 25/2 30/2 35/2 40/2 20/3 25/3 30/3 35/3 40/3 45/3 50/3 50/4 60/4 70/4 80/4	13.0 13.7 16.0 21.6 20.4 16.2 19.6 23.0 27.9 31.3 34.7 38.1 54.1 63.6 73.0 82.5	14.0 14.8 17.3 23.3 22.1 17.0 20.6 24.2 29.3 32.8 36.4 40.0 57.4 67.4 77.4 87.4
H4	34x50	20/3	16.7	17.5
H6	34x75 33x75 34x75 33x75 33x75 33x75	25/2 20/3 25/3 30/3 35/3 40/3	12.4 16.1 19.6 23.1 26.6 30.1	13.1 16.9 20.6 24.3 27.9 31.6
J9	41x100	20/3	13.9	14.6
I4	68x50	20/2	7.5	8.1
I9	100x100	25/3	8.8	9.3