HSS
GRATING 
& EXPANDED METAL

WELDED BAR GRATING

Smooth-Surface Grating
Serrated-Surface Safety Grating
Grating available in Carbon Steel, Aluminum & Stainless
STANDARD MESH TYPES  
TYPE 19-W-4        TYPE 19-W-2
CLOSE MESH TYPES 
   TYPE 15-W-4        TYPE 15-W-2
CROSS BARS C to C 
BEARING BARS C to C 
Maximum Width of Panels 3'0"
WEIGHT IN LBS. PER SQ. FT.
Bearing - Bars Type - 19-W-4 Type - 19-W-2 Type - 15-W-4 Type - 15-W-2
3⁄4 x 1⁄8 4.0 4.6 4.8 5.5
3⁄4 x 3⁄16 5.6 6.3 6.9 7.5
1 x 1⁄8 5.1 5.7 6.2 6.9
1 x 3⁄16 7.3 8.0 9.0 9.6
1 1⁄4 x 1⁄8 6.1 6.8 7.5 8.2
1 1⁄4 x 3⁄16 8.9 9.6 11.1 11.7
1 1⁄2 x 1⁄8 7.3 7.9 9.0 9.6
1 1⁄2 x 3⁄16 10.6 11.2 13.1 13.8
1 3⁄4 x 3⁄16 12.2 12.9 15.2 15.8
2 x 3⁄16 13.9 14.5 17.3 17.9
2 1⁄4 x 3⁄16 15.4 16.1 19.2 19.9
2 1⁄2 x 3⁄16 17.1 17.7 21.3 22.0

Other Sizes Cut To Your Specifications

When ordering Grating, please specify:
  • Type of GRATING
  • Size of BEARING BARS (DEPTH & WIDTH)
  • Span (direction of bearing bars) 
  • Dimensions of area
  • Painted or Galvanized, Smooth or Serrated

WELDED BAR GRATING

STANDARD
SERRATED
STAIRTREADS
Stairtreads come complete with a carrier plate each end and checker plate nosing to ensure maximum visibility.
END PLATE DETAIL
(1 and 1-¼”Bar Grating) Inquire for details on other sizes.
Tread Width Number of Bearing Bars “A” Dimension
6 3⁄16" 5 21⁄2"
7 3⁄8" 6 41⁄2"
8 9⁄16" 7 41⁄2"
9 3⁄4" 8 7"
10 15⁄16" 9 7"
12 1⁄8" 10 7"
RECOMMENDED BEARING BAR SIZES
Maximum Length of Tread Bearing Bars Size
2'2" 3⁄4" x 3⁄16"
3'0" 1" x 3⁄16"
4'0" 1 1⁄4" x 3⁄16"
5'3" 1 1⁄2" x 3⁄16"
TYPICAL STAIR STRINGER DETAIL

EXPANDED METAL

TERMINOLOGY

BOND: WHERE TWO STRANDS INTERSECT
S.W.D.: Short way of the diamond. Measured from the centre of one bond to the centre of the next. 
L.W.D.: Long way of the diamond. Measured as above.
S.W.O.: Short way of the opening. Measured from the inside of the bonds. 
L.W.O.: Long way of the opening. Measured as above.
Strand Thickness: Gauge thickness of the material before expanding.
Strand Width: Thickness of the material in one strand.
Tread Width Number of Bearing Bars “A” Dimension
6 3⁄16" 5 21⁄2"
7 3⁄8" 6 41⁄2"
8 9⁄16" 7 41⁄2"
9 3⁄4" 8 7"
10 15⁄16" 9 7"
12 1⁄8" 10 7"
TYPICAL BAR BENDS
Notes:
1. All dimensions are out-to-out of bar except A or G on standard 180-deg and 135-deg hooks.
2. The / dimension on 180-deg hooks to be shown only when necessary to restrict hook size: otherwise standard hooks are to be used.
3. Where / is not shown / will be kept equal to or less than H on truss bars. Where / can exceed H, it should be shown.
4. The H dimension on stirrups to be shown where necessary to fit within concrete.
5. Where bars are to be bent more accurately than standard bending tolerances, bending dimensions which require closer fabrication should have limits indicated.
6. Figures in circles show types.
7. For minimum bend diameters, see Section 3.7.1 of this standard; for recommended hook dimensions. see Table 1.
8. Types S1-S9, S11, T1-T9 apply to Bar Sizes #3 - #8 inclusive only.

FLATTENED
EXPANDED METAL
STEEL

CARBON
STYLE Lbs. Per 100 Sq. ft. Plain Standard Sheet Size (ft.) LWD Standard Sheet Size (ft.) SWD Design Sizes (inches) SWD Design Sizes (inches) LWD Opening Sizes (inches) SWO Opening Sizes (inches) LWO Strand Size (inches) Width Strand Size (inches) Thick- ness
3/16” - 22 55 8 4 0.218 0.500 0.094 0.343 0.063 0.027
3/16” - 20 86 8 4 0.218 0.500 0.094 0.343 0.063 0.032
1/4” - 20 88 8 4 0.250 1.05 0.084 0.715 0.079 0.030
1/4” - 18 108 8 4 0.250 1.05 0.075 0.715 0.080 0.040
5/16” - 18 95 8 4 0.333 1.03 0.172 0.813 0.092 0.040
1/2” - 20 40 8 4 0.500 1.25 0.375 1.00 0.079 0.029
1/2” - 18 66 8 4 0.500 1.25 0.312 1.00 0.097 0.040
1/2” - 16 82 8 4 0.500 1.25 0.312 1.00 0.096 0.050
1/2” - 13 140 8 4 0.500 1.25 0.265 1.00 0.107 0.070
3/4” - 16 51 8 4 0.923 2.10 0.750 1.75 0.110 0.048
3/4” - 13 75 8 4 0.923 2.10 0.688 1.781 0.106 0.070
3/4” - 9 171 8 4 0.923 2.10 0.563 1.688 0.165 0.120
1”- 16 44 8 4 1.00 2.30 0.813 2.10 0.098 0.051
1” - 14 72 8 4 1.00 2.30 0.813 2.00 0.125 0.070
1” - 12 101 8 4 1.00 2.30 0.813 2.00 0.156 0.085
1” - 10 L 165 8 4 1.00 2.30 0.813 2.00 0.165 0.120
1 1/2” - 13 57 8 4 1.33 3.20 1.060 2.750 0.116 0.070
1 1/2” - 12 66 8 4 1.33 3.20 1.296 2.750 0.110 0.085
1 1/2” - 9 114 8 4 1.33 3.20 1.00 2.560 0.158 0.110
1 1/2” - 10 L 165 8 4 1.33 3.20 0.900 2.563 0.188 0.110
Weights, Gauges, Dimensions and Sizes listed above are approximate.

STOCK SIZES for all meshes listed above 4’ (SWD) x 8’ (LWD)
Special size sheet can be produced to order.

STANDARD
EXPANDED METAL
STEEL

CARBON
STYLE Lbs. Per 100 Sq. ft. Plain Standard Sheet Size (ft.) LWD Standard Sheet Size (ft.) SWD Design Sizes (inches) SWD Design Sizes (inches) LWD Opening Sizes (inches) SWO Opening Sizes (inches) LWO Strand Size (inches) Width Strand Size (inches) Thick- ness
3/16” - 22 56 8 4 0.203 0.500 0.110 0.313 0.047 0.030
3/16” - 20 90 8 4 0.203 0.500 0.080 0.313 0.063 0.036
1/4” - 20 86 8 4 0.250 1.00 0.125 0.718 0.072 0.036
1/4” - 18 114 8 4 0.250 1.00 0.110 0.718 0.072 0.048
5/16” - 20 74 8 4 0.292 0.750 0.158 0.563 0.067 0.036
5/16” - 18 104 8 4 0.333 1.000 0.188 0.688 0.084 0.048
1/2” - 20 43 8 4 0.500 1.20 0.438 0.938 0.072 0.036
1/2” - 18 70 8 4 0.500 1.20 0.438 0.938 0.088 0.048
1/2” - 16 86 8 4 0.500 1.20 0.375 0.938 0.087 0.060
1/2” - 13 147 8 4 0.500 1.20 0.312 0.938 0.096 0.090
3/4” - 16 54 8 4 0.923 2.00 0.813 1.75 0.101 0.060
3/4” - 13 80 8 4 0.923 2.00 0.750 1.680 0.096 0.090
3/4” - 10 120 8 4 0.923 2.00 0.750 1.625 0.144 0.090
3/4” - 9 180 8 4 0.923 2.00 0.688 1.564 0.149 0.134
1” - 16 47 8 4 1.00 2.250 0.938 2.000 0.087 0.060
1” - 14 78 8 4 1.000 2.250 0.875 1.563 0.122 0.074
1” - 12 96 8 4 1.000 2.250 0.907 1.560 0.109 0.105
1” - 10L 170 8 4 1.000 2.250 0.750 1.563 0.155 0.135
1” - 10H 200 8 4 1.000 2.250 0.750 1.563 0.180 0.135
1 1/2” - 13 60 8 4 1.33 3.00 1.188 2.500 0.105 0.090
1 1/2” - 10 79 8 4 1.33 3.00 1.188 2.500 0.138 0.092
1 1/2” - 12 74 8 4 1.33 3.00 1.112 2.375 0.109 0.105
1 1/2” - 9 120 8 4 1.33 3.00 1.125 2.375 0.142 0.134
1 1/2” - 10L 170 8 4 1.33 3.00 1.000 2.375 0.200 0.135
1 1/2” - 10H 200 8 4 1.33 3.00 0.830 2.375 0.240 0.135
1 1/2” - 6 250 8 4 1.33 3.00 1.110 2.313 0.203 0.198
Weights, Gauges, Dimensions and Sizes listed above are approximate.

STOCK SIZES for all meshes listed above 4’ (SWD) x 8’ (LWD)
Special size sheet can be produced to order.

STANDARD
EXPANDED METAL
STEEL

CARBON
STYLE Lbs. Per Sq. ft. Plain Galv. Wt. Standard Sheet Size (ft.) SWD Standard Sheet Size (ft.) LWD Design Sizes (inches) SWD Design Sizes (inches) LWD Opening Sizes (inches) SWO Opening Sizes (inches) LWO Strand Size (inches) Width Strand Size (inches) Thickness Overall Thickness (inches) No. of Designs per Ft. SWD No. of Designs per Ft. LWD % Open Area
3.0 lbs. 3 3.15 8 3
3.0 lbs. 3 3.15 8 4 1.33 5.33 0.94 3.44 0.264 0.183 0.54 9 2.25 60
3.0 lbs. 3 3.15 8 5.6 1.33 5.33 0.94 3.44 0.264 0.183 0.54 9 2.25 60
3.0 lbs. 3 3.15 10 3 1.33 5.33 0.94 3.44 0.264 0.183 0.54 9 2.25 60
3.14 lbs. 3.14 3.3 8 3 2 6 1.625 4.88 0.312 0.25 0.656 6 2 69
3.14 lbs. 3.14 3.3 8 4 2 6 1.625 4.88 0.312 0.25 0.656 6 2 69
3.14 lbs. 3.14 3.3 10 3 2 6 1.625 4.88 0.312 0.25 0.656 6 2 69
4.0 lbs. 4 4.18 8 3 1.33 5.33 0.94 3.4 0.3 0.215 0.618 9 2.25 55
4.0 lbs. 4 4.18 8 4 1.33 5.33 0.94 3.4 0.3 0.215 0.618 9 2.25 55
4.0 lbs. 4 4.18 10 3 1.33 5.33 0.94 3.4 0.3 0.215 0.618 9 2.25 55
4.27 lbs. 4.27 4.46 8 3 1.41 4 1 2.88 0.3 0.25 0.625 8.5 3 58
4.27 lbs. 4.27 4.46 8 4 1.41 4 1 2.88 0.3 0.25 0.625 8.5 3 58
4.27 lbs. 4.27 4.46 10 3 1.41 4 1 2.88 0.3 0.25 0.625 8.5 3 58
5.0 lbs. 5 5.2 8 3 1.33 5.33 0.813 3.38 0.331 0.25 0.655 9 2.25 50
5.0 lbs. 5 5.2 8 4 1.33 5.33 0.813 3.38 0.331 0.25 0.655 9 2.25 50
5.0 lbs. 5 5.2 10 3 1.33 5.33 0.813 3.38 0.331 0.25 0.655 9 2.25 50
6.25 lbs. 6.25 6.47 8 3 1.41 5.33 0.813 3.38 0.35 0.312 0.715 8.5 2.25 50
6.25 lbs. 6.25 6.47 8 4 1.41 5.33 0.813 3.38 0.35 0.312 0.715 8.5 2.25 50
6.25 lbs. 6.25 6.47 10 3 1.41 5.33 0.813 3.38 0.35 0.312 0.715 8.5 2.25 50
7.0 lbs. 7 7.25 4 8 1.41 5.33 0.813 3.38 0.391 0.312 0.74 8.5 2.25 45
Weights, Gauges, Dimensions and Sizes listed above are approximate.

STOCK SIZES for all meshes listed above 4’ (SWD) x 8’ (LWD)
Special size sheet can be produced to order.

EXPANDED MESH
ALUMINUM

STANDARD
STYLE NO. WEIGHT PER 100 SQ. FT. CENTRE TO CENTRE OF BRIDGES A SWD CENTRE TO CENTRE OF BRIDGES B SWD SIZE OF OPENINGS C SWD SIZE OF OPENINGS D LWD STRAND E THICK. STRAND F THICK.
3⁄16-.032 28 0.203 0.50 0.080 0.313 0.032 0.060
5⁄16-.032 22 0.333 1.0 0.219 0.69 0.032 0.080
5⁄16-.051 35 0.333 1.0 0.188 0.92 0.051 0.080
1⁄2-.032 14 0.500 1.2 0.400 0.921 0.032 0.077
1⁄2-.051 25 0.500 1.2 0.375 0.937 0.051 0.080
1⁄2-.081 41 0.500 1.2 0.375 0.937 0.081 0.080
3⁄4-.051 17 0.923 2.0 0.812 1.75 0.051 0.109
3⁄4-.081L 27 0.923 2.0 0.750 1.68 0.081 0.110
3⁄4-.081H 41 0.923 2.0 0.750 1.68 0.081 0.165
3⁄4-.125 65 0.923 2.0 0.687 1.680 0.125 0.169
11⁄2-.081 22 1.33 3.0 1.187 2.500 0.081 0.129
11⁄2-.125 43 1.33 3.0 1.187 2.500 0.125 0.162
FLATTENED
STYLE NO. WEIGHT PER 100 SQ. FT. CENTRE TO CENTRE OF BRIDGES A SWD CENTRE TO CENTRE OF BRIDGES B SWD SIZE OF OPENINGS C SWD SIZE OF OPENINGS D LWD STRAND E THICK. STRAND F THICK.
3⁄16-.032F 20 1.218 0.50 0.094 0.343 0.028 0.060
5⁄16-.032F 20 0.333 1.02 0.188 0.813 0.030 0.082
5⁄16-.051F 34 0.333 1.02 0.156 0.780 0.045 0.082
1⁄2-.032F 13 0.500 1.25 0.271 1.00 0.029 0.100
1⁄2-.051F 24 0.500 1.27 0.312 1.00 0.040 0.091
1⁄2-.081F 39 0.500 1.27 0.312 1.00 0.060 0.091
3⁄4-.051F 16 0.923 2.13 0.750 1.81 0.040 0.122
3⁄4-.081LTF 25 0.923 2.13 0.687 1.75 0.070 0.134
3⁄4-.081HF 39 0.923 2.13 0.687 1.75 0.070 0.181
3⁄4-.125F 62 0.923 2.13 0.625 1.75 0.095 0.187
11⁄2-.081F 21 1.33 3.15 1.062 2.75 0.055 0.143
11⁄2-.125F 41 1.33 3.15 1.00 2.75 0.095 0.181
STOCK SIZES are: 4' (SWD) x 8' (LWD)
Special sizes produced to order.

EXPANDED MESH
STAINLESS

STANDARD
STYLE NO. WEIGHT PER 100 SQ. FT. CENTRE TO CENTRE OF BRIDGES A SWD CENTRE TO CENTRE OF BRIDGES B SWD SIZE OF OPENINGS C SWD SIZE OF OPENINGS D LWD STRAND E THICK. STRAND F THICK.
5⁄16-20ST 86 0.333 1.0 0.219 0.75 0.037 0.078
5⁄16-18ST 114 0.333 1.0 0.189 0.69 0.050 0.078
1⁄2-20ST 50 0.500 1.2 0.437 0.94 0.037 0.080
1⁄2-18ST 67 0.500 1.2 0.437 0.94 0.050 0.080
1⁄2-16ST 84 0.500 1.2 0.437 0.94 0.062 0.080
3⁄4-20ST 35 0.923 2.0 0.850 1.66 0.037 0.125
3⁄4-18ST 48 0.923 2.0 0.850 1.70 0.050 0.105
3⁄4-16ST 60 0.923 2.0 0.812 1.75 0.062 0.106
3⁄4-14ST 73 0.923 2.0 0.814 1.63 0.078 0.106
1 1⁄2-16ST 41 1.33 3.0 1.25 2.75 0.062 0.106
1 1⁄2-9ST 137 1.33 3.0 1.13 2.50 0.140 0.155
FLATTENED
STYLE NO. WEIGHT PER 100 SQ. FT. CENTRE TO CENTRE OF BRIDGES A SWD CENTRE TO CENTRE OF BRIDGES B SWD SIZE OF OPENINGS C SWD SIZE OF OPENINGS D LWD STRAND E THICK. STRAND F THICK.
5⁄16-20STF 82 0.333 1.0 0.180 0.79 0.030 0.069
5⁄16-18STF 110 0.333 1.0 0.159 0.73 0.039 0.069
1⁄2-20STF 48 0.500 1.26 0.312 1.00 0.033 0.091
1⁄2-18STF 65 0.500 1.26 0.312 1.00 0.040 0.091
1⁄2-16STF 81 0.500 1.26 0.312 1.00 0.050 0.091
3⁄4-20STF 34 0.923 2.0 0.661 1.79 0.030 0.128
3⁄4-18STF 46 0.923 2.1 0.671 1.78 0.039 0.127
3⁄4-16STF 57 0.923 2.1 0.750 1.81 0.050 0.118
1 1⁄2-16STF 39 1.33 3.2 1.062 2.75 0.050 0.119
1 1⁄2-9STF 131 1.33 3.2 0.937 2.63 0.119 0.165
STOCK SIZES are: 4' (SWD) x 8' (LWD)
Special sizes produced to order.

Processing Capabilities

METALS PROCESSING