Grating panels installed over multiple spans will
reduce deflections.Hold Down Clips: Gratings must be mechanically
fastened in place to prevent sliding. Each grating
panel should be fastened to each supporting
structure using a minimum of four “M” style hold down
clips. For larger panels 6 to 8 hold down clips are
recommended. Gratings installed in trenches where
they are captive in an embedment angle do not
require hold down clips unless bearing surfaces are
uneven and the grating panels would tend to rock.
Abutting edges of moulded grating panels should
be supported by structural members or fastened
together using “F” style clips at a maximum spacing of
600mm on center. This will prevent differential
deflection when one of the abutting gratings is
Due to the bi-directional nature of square mesh moulded grating unsupported holes of limited size may be cut into the edges or interior of the panels without the use of additional supports. This Is very useful for applications which involve pipe penetrations.As a rule of thumb as long as no more than 113 of the individual grating panel width Isremoved by such a hole no additional support will be required.
Edge Banding: Unlike steel and aluminium gratings It Is not necessary to edge band moulded gratings for structural reasons.
As FRP cannot be welded edge banding will not transmit load to the grating.