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Bar Grating
Standard Grating
Heavy Duty Grating
Stainless Steel Grating
Aluminum Grating
Stair Treads
Manufacturing Tolerance
Fastening Methods
Grating Terms
Safety Grating
Expanded Metals
Fiberglass Grating
Stair Tread

Detail of standard end plate

3/4 (19) to 1-1/4 (32) 1-3/4 (44) 2-1/2 (64)
1-1/2 (38) and up 2-1/4 (57) 3(76)

Tread Width Number of
Bearing Bars
"A" Dimension
6-3/16" 157mm 5 2-1/2" 64mm
7-3/8" 187mm 6 4-1/2" 114mm
8-9/16" 217mm 7 4-1/2" 114mm
9-3/4" 248mm 8 7" & 4-1/2" 178mm
10-15/16" 278mm 9 7" & 4-1/2" 178mm
12-1/8" 308mm 10 7" & 4-1/2" 178mm
Welded Steel

Bearing Bar Size
in. (mm)
Maximum Length of Tread
@ 1-3/16" (30)
Imperial Metric Imperial Metric Imperial Metric
1" x 3/16" 25 x 4.8 3'-5" 1046 2'-10" 860
1-1/4" x 3/16" 32 x 4.8 4'-6" 1420 4'-2" 1270
1-1/2" x 3/16" 38 x 4.8 5'-6" 1670 5'-3" 1600
Fisholow Aluminum

Bearing Bar Size
in. (mm)
Maximum Length of Tread
@ 1-3/16" (30)
Imperial Metric Imperial Metric Imperial Metric
1" x 3/16" 25 x 4.8 2'-4" 710 0 0
1-1/4" x 3/16" 32 x 4.8 2'-10" 860 2'-7" 790
1-1/2" x 3/16" 38 x 4.8 3'-6" 1070 3'-2" 970
Note: For treads width 9-3/4, 10-15/16 and 12-1/8 standard end plate is complete with 2 slots. See "A" Dimension in chart
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