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Panel Tolerances (as
Manufactured)
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Panel Size-Molded
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+/-1/8"(+/-3mm) (width,length
& diagonal)
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Panel Size-Pultruded
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+/-1/4"(+/-6mm) (width,length
& diagonal)
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Grating Depth
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+/-1/16"(+/-1.5mm)
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Panel Flatness(Warp)
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+/-1/32"(+/-0.8mm)per ft.
(length direction)
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+/-1/16"(+/-1.5mm)per ft.
(Width direction)
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Cutting
Tolerances(as Fabricated)
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Rectangular Cuts
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+0", -1/4" (+0, -6.4mm)
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Straight Cuts
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+0", -1/4" (+0, -6.4mm)
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Circular Cuts
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+0", -3/8" (+0, -9.5mm)
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Grating Clearances
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To Side of Trench
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1/4" (6.4mm)
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To Wall
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1/2" (13mm)
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Between Panels
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0" to 1/4" (0 to 6.4mm)
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Minimum Support Width
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1 1/2" (38mm)
minimum(nominal)
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Attachment
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2 Hold-downs at Each
Suppport
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Banding
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Plate 1/8"(3mm) min.
attached with bolts or leg
screws
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Straight Banding -
attachments spaced
12"(30.5mm) centers
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Curved Banding - attachments
spaced 9"(23mm) Max.
(dependant on radius)
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