As manufactured, grating panels are provided with open ends. Optional trim banding,
a metal flat bar welded to the open ends of the panel, provides additional transverse
stiffness and a finished architectural appearance. Banding should be specified for all
removable grating panels as the closed ends provide additional worker safety during
Gratings subject to vehicular loads should always be specified as banded. In these applications,
the band bar helps reduce impact stresses by transferring loads to adjacent
bearing bars and resists deformation caused by repetitive traffic patterns on open end
Load banding, where each bearing bar is welded to the band bar, helps distribute load
throughout the grating panel.
Trench banding, where the band bar is
elevated above the bottom of the bearing
bars, is appropriate for drainage
applications. The elevated band bar
allows for efficient drainage and will
not trap liquids between the band bar
and the grating support.
See Banding Weld Standards for specific
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Stock grating panels are manufactured in nominal 24", 36", and 48" widths. These sizes allow for efficient layout and waste minimization when
fabricated to your exact specification. Unlike competing grating products, individual grating panels do not require supports on all four sides of each cut
piece. Bar grating panels only require support perpendicular to the bearing bar span. There is no need to place supports parallel to the bearing bars
where adjacent panels are installed in succession. The following diagrams illustrate proper layout and support of a simple bar grating platform.
Typical Panel Layouts