Expanded Metal | Bar Grating | Throop, PA

Expanded Metal and Bar Grating



Expanded Metal and Bar Grating


Expanded Metal

Expanded metal is lighter per foot and stronger per pound than the sheet of metal from which it is made. The metal strands forming the open diamonds permit light, heat, sound, and air to pass through; yet present an impenetrable barrier to intruders. It is available in steel, aluminum and stainless steel.

Standard (not flattened) expanded metal has a variety of uses, including baskets, bins, fencing, displays, gratings, grilles, guards, racks, reinforcing, screens, shelving, trays, enclosures, and partitions.

Flattened expanded metal is made by the same process as standard expanded metal but is then passed through a series of rolls that flatten the strands and bridges. This reduces the thickness of the original sheet approximately two gauges while retaining all the original metal.  Flattened expanded metal provides an almost unlimited number of uses due to it being decorative, strong, and easy to work with.

The hole design of a typical piece of expanded metal is:
LWD = long way of design
LWO = long way of opening
SWD = short way of design
SWO = short way of opening

Check out the available sizes below and remember that other sizes are available on special order:

Size of Opening = width and length of opening (see above diagram)
Design Size = length from the center of a bond to the center on the adjacent bond (see above diagram)
Strand Thickness = actual gauge of strand once produced
Overall Thickness = overall thickness of material

Carbon Steel - Standard Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
3/16" # 22 0.45 0.140 0.345 0.190 0.050 0.031 0.070 61%
1/4" # 20 0.86 0.125 0.718 0.250 1.00 0.036 0.135 45%
1/4" # 18 1.14 0.110 0.718 0.250 1.00 0.048 0.147 43%
1/2" # 20 0.43 0.438 0.938 0.500 1.20 0.036 0.140 80%
1/2" # 18 0.70 0.438 0.938 0.500 1.20 0.048 0.172 72%
1/2" # 16 0.86 0.375 0.938 0.500 1.20 0.060 0.175 65%
1/2" # 13 1.47 0.312 0.938 0.500 1.20 0.090 0.204 57%
3/4" # 16 0.54 0.813 1.750 0.923 2.00 0.060 0.210 78%
3/4" # 13 0.80 0.750 1.688 0.923 2.00 0.090 0.205 76%
3/4" # 9 1.90 0.688 1.562 0.923 2.00 0.015 0.312 68%
1" # 16 0.44 0.938 2.062 1.000 2.40 0.060 0.192 82%
1-1/2" # 16 0.40 1.250 2.625 1.330 3.00 0.060 0.230 85%
1-1/2" # 13 0.60 1.188 2.500 1.330 3.00 0.090 0.242 85%
1-1/2" # 9 1.20 1.125 2.375 1.330 3.00 0.134 0.312 76%
1-1/2" # 6 2.50 1.110 2.313 1.330 3.00 0.194 0.433 69%
2" # 9 0.90 1.563 3.375 1.850 4.00 0.134 0.312 84%

Stainless Steel - Standard Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
1/2" # 18 0.73 0.437 0.937 0.500 1.20 0.050 0.164 70%
1/2" # 16 0.91 0.437 0.937 0.500 1.20 0.062 0.164 70%
1/2" # 13 1.87 0.325 0.875 0.500 1.20 0.093 0.225 52%
3/4" # 16 0.60 0.812 1.750 0.923 2.00 0.062 0.202 83%
3/4" # 13 0.91 0.750 1.687 0.923 2.00 0.093 0.202 80%
3/4" # 13 0.91 0.750 1.687 0.923 2.00 0.093 0.202 80%
3/4"# 9 2.05 0.687 1.562 0.923 2.00 0.140 0.300 67%
1-1/2" # 13 0.68 1.250 2.625 1.330 3.00 0.093 0.222 83%
1-1/2" # 9 1.37 1.125 2.500 1.330 3.00 0.140 0.280 77%

Aluminum - Standard Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
3/16" #.032 0.16 0.160 0.360 0.190 0.50 0.032 0.070 66%
1/2" #.051 0.27 0.375 0.937 0.500 1.20 0.051 0.158 65%
1/2" #.081 0.44 0.375 0.937 0.500 1.20 0.081 0.186 60%
1/2" #.081 0.41 0.750 1.680 0.923 2.00 0.081 0.300 69%
3/4" #.125 0.65 0.687 1.680 0.923 2.00 0.125 0.305 68%
1-1/2" #.081 0.22 1.187 2.500 1.330 3.00 0.081 0.240 85%

Carbon Steel - Flattened Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
3/16" # 22 0.49 0.090 0.410 0.200 0.52 0.024 0.024 48%
1/4" # 20 0.83 0.130 0.720 0.260 1.03 0.030 0.030 38%
1/4" # 18 1.11 0.130 0.720 0.260 1.03 0.040 0.040 37%
1/2" # 16 0.82 0.310 1.000 0.500 1.27 0.050 0.05 0 62%
1/2" # 13 1.40 0.280 1.000 0.500 1.27 0.070 0.07 0 55%
3/4" # 16 0.51 0.720 1.780 0.920 2.08 0.048 0.048 75%
3/4" # 14 0.63 0.720 1.750 0.920 2.10 0.061 0.061 73%
3/4" # 13 0.75 0.720 1.720 0.920 2.10 0.070 0.070 76%
3/4" # 9 1.71 0.560 1.630 0.920 2.13 0.120 0.120 58%
1" # 16 0.41 0.880 2.160 1.090 2.53 0.048 0.048 79%
1-1/2" # 16 0.38 1.000 2.590 1.330 3.18 0.048 0.048 71%
1-1/2" # 13 0.57 1.090 2.720 1.330 3.15 0.070 0.070 81%
1-1/2" # 9 1.14 1.090 2.720 1.330 3.17 0.110 0.110 80%
2" # 9 0.85 1.530 3.590 1.850 4.27 0.105 0.105 81%

Stainless Steel - Flattened Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
1/4" # 18 1.43 0.080 0.660 0.250 1.20 0.047 0.047 28%
1/2" # 18 0.69 0.312 1.000 0.500 1.26 0.040 0.040 60%
1/2" #16 0.86 0.312 1.000 0.500 1.26 0.050 0.050 60%
1/2" #13 1.78 0.240 0.915 0.500 1.26 0.080 0.080 45%
3/4" #18 0.46 0.750 1.812 0.923 2.10 0.040 0.040 75%
3/4" #16 0.57 0.750 1.812 0.923 2.10 0.050 0.050 75%
1-1/2" #13 0.65 1.000 2.625 1.330 3.15 0.080 0.080 80%
1-1/2" #9 1.31 0.937 2.625 1.330 3.15 0.119 0.119 75%

Aluminum - Flattened Expanded Metal

Size Wt. per Sq. Ft. Size of Opening - SWO Size of Opening - LWO Design Size - SWD Design Size - LWD Strand Thickness Overall Thickness Open Area
1/2" #.051 0.26 0.312 1.000 0.500 1.270 0.040 0.040 61%
1/2" #.081 0.42 0.312 1.000 0.500 1.270 0.060 0.060 58%
3/4" #.051 0.16 0.750 1.812 0.923 2.125 0.040 0.040 72%
3/4" #.081 0.39 0.687 1.750 0.923 2.125 0.070 0.070 70%
3/4" #.125 0.62 0.625 1.750 0.923 2.125 0.095 0.095 62%
1-1/2" #.081 0.21 1.062 2.750 1.330 3.150 0.060 0.060 77%
1-1/2" #.125 0.41 1.000 2.750 1.330 3.150 0.080 0.080 70%

Expanded Metal Grating

Expanded metal grating is the most practical and economical material you can use when a safe, strong, and non-slip surface is required. It is not woven, not welded, by sturdy, solid steel that is pierced and stretched from a single plate.

The open diamonds prevent the accumulation of slippery grease, mud, and snow, while still allowing light and air to pass through. It can be cut to fit irregular shapes and can be welded to supporting members. It has a neat appearance, long life, and is free from needing repairs and maintenance. It is low in cost and easy to construct, making it perfect for plant runways, catwalks, and working platforms.

We can furnish promptly the following other items of Expanded Metal Grating: Walkway 4.27 Ibs. per sq. ft. and Skywalk 3.14 lbs. per sq. ft.

Check out the approximate weights and dimensions:
3-Pound Grating 4-Pound Grating 5-Pound Grating
Weight, plain 3.00 lbs. (per sq ft) 4.00 lbs. (per sq ft) 5.00 lbs. (per sq ft)
Strand size .183" x .264" .215" x .300" .250" x 331"
Size opening 15/16" x 3 7/16" 15/16" x 3 7/16" 13/16" x 3 3/8"
Bridge centers 1.333" x 5.33" 1.333" x 5.33" 1.333" x 5.33"
Diamonds per foot 9 x 2 1/4 9 x 2 1/4 9 x 2 1/4
Standard size sheets 3' or 6' x 8' 3', 4', 5', or 6' x 8' 4' or 5' x 8'

Bar Grating and Steel Weights

Welded steel bar grating is stocked in 24" and 36 "widths x 24' lengths. We have bare (not painted), painted black, painted black serrated, galvanized and galvanized serrated bar grating.  Saw cutting services are provided per your specifications. For special applications or loading (such as vehicles, etc.) we can provide other types in a variety of main and cross bar sizes and spacing.

Weights (Steel Only)

Bearing Bar Size Weight Lbs. Sq. Ft. Bearing Bar Size Weight Lbs. Sq. Ft.
IWA IWB IWA IWB
3/4" X 1/8" 4.1 4.8 1 1/2" x 1/8" 7.4 8.1
3/4" x 3/16" 5.7 6.4 1 1/2" x 3/16" 10.8 11.5
1" x 1/8" 5.2 5.9 1 3/4" x 3/16" 12.5 13.2
1" x 3/16" 7.4 8.1 2" x 3/16" 14.1 14.8
1 1/4" x 1/8" 6.3 7.0 2 1/4" x 3/16" 15.7 16.4
1 1/4" x 3/16" 9.1 9.8 2 1/2" x 3/16" 17.4 18.1

Grip Strut Grating

Get grip strut safety flooring, which is a formed sheet metal channel with a slip-resistant surface. It can be fabricated into platforms, stairs, scaffolds, ramps, and more! It is made from galvanized steel sheet and is stocked in standard 12 ft. lengths. Check out the standard sizes that are available:
Width Height Thickness
4 3/4" 1 1/2" 14 ga.
7" 1 1/2" 14 ga.
9 1/2" 1 1/2" 14 ga.
11 3/4" 1 1/2" 12 ga.
11 3/4" 2 1/2" 12 ga.
18 3/4" 1 1/2" 12 ga.
18 3/4" 2" 12 ga.
Call us today to place your order for expanded metal products!
570-344-7141
Standard Expanded Metal
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