NJMM can fabricate steel grating according to the standards in different counties, such as China: YB/T4001.1-2007, USA: ANSI/NAAMM (MBG531), UK: BS4592 and so on.
NJMM can fabricate any specification of steel grating available, both in inch description and metric description.
The most common standard panel sizes are 3’X24’,3’X20’, 1000X6000mm, 1000X6100mm etc.
The most common bars are 1" X 1/8", 1" X 3/16", 1" X 3/16", 1" X 3/16", and 25X3, 30X3, 32X3, 25X5, 32X5, 35X5, 38X5 etc.
Serration is done for slip resistance. It is grating which has the top surfaces of the bearing bars notched.
Bar grating comes in untreated, painted, hot dip galvanized.