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Expanded Metal

EXPANDED MESH
TERMINOLOGY AND TYPES

 

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A. WIDTH OF MESH (S.W.D.)
B. LENGTH OF MESH (L.W.D.)
C. WIDTH OF OPENING
D. LENGTH OF OPENING
E. STRAND THICKNESS
F. STRAND WIDTH
 
​

 
TERMINOLOGY

S.W.D. ​ Short Way Diamond​
L.W.D ​ Long Way Diamond​
Bond  ​ Area where strands intersect​
Strand Width ​ Surface area of metal strips forming diamond​
Strand Thickness ​ Gauge of material being expanded​
Flattening​ Flattened short dimension diamond parallel to rolls​
Cross Flattening*​ Flattened long way diamond parallel to rolls​
Deburring ​ Mesh passed through wire brushes to remove burns​
Levelling​ Mesh roller levelled to reduce curving​
 

 

 

 

* Cross flattening results in distortion of the diamond in expanded mesh.

CENTRE TO CENTRE OF BRIDGES SIZE OF OPENINGS STRAND
A B C D E F
STYLE NO. (Use this number for ordering) WEIGHT PER 100 SQ. FT. SWD LWD SWD LWD THICK. WIDTH
STANDARD STEEL 3/16-22 56 0.203 0.5 0.11 0.313 0.03 0.047
3/16-20 90 0.203 0.5 0.08 0.313 0.036 0.063
1/4-20 86 0.25 1 0.125 0.718 0.036 0.072
1/4-18 114 0.25 1 0.11 0.718 0.048 0.072
5/16-22 42 0.333 1 0.219 0.781 0.03 0.056
5/16-20 57 0.333 1 0.25 0.75 0.036 0.063
5/16-18 104 0.333 1 0.188 0.688 0.048 0.087
1/2-20 43 0.5 1.2 0.438 0.938 0.036 0.072
1/2-18 70 0.5 1.2 0.438 0.938 0.048 0.088
1/2-16 86 0.5 1.2 0.375 0.938 0.06 0.087
1/2-13 147 0.5 1.2 0.312 0.938 0.09 0.096
3/4-18 44 0.923 2 0.87 1.69 0.048 0.102
3/4-16 54 0.923 2 0.813 1.75 0.06 0.101
3/4-13 80 0.923 2 0.75 1.69 0.09 0.096
3/4-10 (13 Ga.) 120 0.923 2 0.75 1.63 0.09 0.144
3/4-9 (10 Ga.) 180 0.923 2 0.688 1.56 0.135 0.15
1-16 47 1 2.3 0.938 2 0.06 0.087
1-14 78 1 2.3 0.875 1.56 0.074 0.125
1-12 96 1 2.3 0.907 1.56 0.105 0.109
1-10 170 1 2.3 0.75 1.56 0.135 0.155
1-10H 200 1 2.3 0.75 1.56 0.135 0.18
1 1/2-16 40 1.33 3 1.25 2.63 0.06 0.108
1 1/2-14 33 1.41 3 1.32 2.63 0.075 0.075
1 1/2-13 60 1.33 3 1.89 2.5 0.09 0.105
1 1/2-12 74 1.33 3 1.11 2.38 0.105 0.109
1 1/2-10L (13 Ga.) 79 1.33 3 1.2 2.52 0.09 0.14
1 1/2-10 170 1.33 3 1 2.38 0.135 0.2
1 1/2-10H 200 1.33 3 0.83 2.38 0.135 0.24
1 1/2-9 (10 Ga.) 120 1.33 3 1.16 2.45 0.135 0.142
FLATTENED STEEL 3/16-22F 72 0.218 0.5 0.094 0.343 0.027 0.063
3/16-20F 86 0.218 0.5 0.094 0.343 0.032 0.063
1/4-20F 88 0.25 1.05 0.084 0.715 0.03 0.079
1/4-18F 108 0.25 1.05 0.075 0.715 0.04 0.08
5/16-22F 39 0.333 1.02 0.203 0.813 0.027 0.075
5/16-20F 54 0.333 1.03 0.203 0.813 0.032 0.075
5/16-18F 95 0.333 1.03 0.172 0.813 0.04 0.099
1/2-20F 40 0.5 1.25 0.375 1 0.029 0.079
1/2-18F 66 0.5 1.25 0.312 1 0.039 0.097
1/2-16F 82 0.5 1.25 0.312 1 0.056 0.096
1/2-13F 140 0.5 1.25 0.312 1 0.07 0.107
3/4-18F 40 0.923 2.10 0.69 1.75 0.042 0.112
3/4-16F 51 0.923 2.10 0.75 1.75 0.048 0.111
3/4-13F 75 0.923 2.10 0.688 1.78 0.07 0.106
3/4-10F (13 Ga.) 114 0.923 2.10 0.637 1.755 0.07 0.16
3/4-9F 171 0.923 2.12 0.56 1.69 0.12 0.165
1-16F 44 1 2.30 0.813 2.1 0.05 0.098
1-14F 63 1 2.30 0.813 2 0.07 0.125
1-12F 98 1 2.30 0.813 2 0.085 0.156
1-10F 165 1 2.30 0.75 1.9 0.11 0.16
1 1/2-16F 38 1.33 3.20 1.06 2.75 0.048 0.119
1 1/2-14F 46 1.33 3.20 1.06 2.75 0.061 0.116
1 1/2-13F 57 1.33 3.20 1.06 2.75 0.07 0.116
1 1/2-12F 66 1.41 3.20 1.3 2.63 0.085 0.116
1 1/2-10F 165 1.33 3.20 0.9 2.56 0.11 0.188
1 1/2-9F (10 Ga.) 114 1.33 3.20 1 2.56 0.11 0.158
ALUMINUM STANDARD 3/16-.032 28 0.203 0.5 0.08 0.313 0.032 0.06
5/16-.032 22 0.333 1 0.219 0.69 0.032 0.08
5/16-.051 35 0.333 1 0.188 0.92 0.051 0.08
1/2-.032 14 0.5 1.2 0.4 0.921 0.032 0.077
1/2-.051 25 0.5 1.2 0.375 0.937 0.051 0.08
1/2-.081 41 0.5 1.2 0.375 0.937 0.081 0.08
3/4-.051 17 0.923 2 0.812 1.75 0.051 0.109
3/4-.081L 27 0.923 2 0.75 1.68 0.081 0.11
3/4-.081H 41 0.923 2 0.75 1.68 0.081 0.165
3/4-.125 65 0.923 2 0.687 1.68 0.125 0.169
1 1/2-.081 22 1.33 3 1.187 2.5 0.081 0.129
1/1 2-.125 43 1.33 3 1.187 2.5 0.125 0.162
ALUMINUM FLATTENED 3/16-.032F 20 0.218 0.5 0.094 0.343 0.028 0.06
5/16-.032F 20 0.333 1.02 0.188 0.813 0.03 0.082
5/16-.051F 34 0.333 1.02 0.156 0.78 0.045 0.082
1/2-.032F 13 0.5 1.25 0.271 1 0.029 0.1
1/2-.051F 24 0.5 1.27 0.312 1 0.04 0.091
1/2-.081F 39 0.5 1.27 0.312 1 0.06 0.091
3/4-.051F 16 0.923 2.13 0.75 1.81 0.04 0.122
3/4-.081LTF 25 0.923 2.13 0.687 1.75 0.07 0.134
3/4-.081HF 39 0.923 2.13 0.687 1.75 0.07 0.181
3/4-.125F 62 0.923 2.13 0.625 1.75 0.095 0.187
1 1/2-.081F 21 1.33 3.15 1.062 2.75 0.055 0.143
1 1/2-.125F 41 1.33 3.15 1 2.75 0.095 0.181
STAINLESS STEEL STANDARD 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 0.05 0.078
1/2-20ST 50 0.5 1.2 0.437 0.94 0.037 0.08
1/2-18ST 67 0.5 1.2 0.437 0.94 0.05 0.08
1/2-16ST 84 0.5 1.2 0.437 0.94 0.062 0.08
3/4-20ST 35 0.923 2.0 0.85 1.66 0.037 0.125
3/4-18ST 48 0.923 2.0 0.85 1.70 0.05 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 0.14 0.155
STAINLESS STEEL FLATTENED 5/16-20STF 82 0.333 1.0 0.18 0.79 0.03 0.069
5/16-18STF 110 0.333 1.0 0.159 0.73 0.039 0.069
1/2-20STF 48 0.5 1.26 0.312 1 0.033 0.091
1/2-18STF 65 0.5 1.26 0.312 1 0.04 0.091
1/2-16STF 81 0.5 1.26 0.312 1 0.05 0.091
3/4-20STF 34 0.923 2.0 0.661 1.79 0.03 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 0.75 1.81 0.05 0.118
1 1/2-16STF 39 1.33 3.2 1.062 2.75 0.05 0.119
1 1/2-9STF 131 1.33 3.2 0.937 2.63 0.119 0.165

ALL WEIGHTS AND DIMENSIONS SHOWN ABOVE ARE APPROXIMATE
Special size sheets can be produced to order.

EXPANDED STEEL GRATING
STYLE WEIGHT PER SQUARE FOOT STANDARD SHEET SIZE FEET DIAMOND SIZE CENTRE TO CENTRE INCHES ACTUAL SIZE OF OPENING STRAND SIZE INCHES OVERALL THICKNESS IN INCHES
SWD LWD SWD LWD SWD LWD WIDTH THICK.
3 3 lbs 8 4 1.33 5.33 0.94 3.44 0.264 0.183
4 4 lbs 8 4 1.33 5.33 0.94 3.44 0.3 0.215
5 5 lbs 8 4 1.33 5.33 0.813 3.38 0.331 0.25
6.25 6.25 lbs 8 4 1.41 5.33 0.813 3.38 0.35 0.312
 Some of our service centres also carry the following in stock:
 
– 3' SWD x 8' and 10' LWD; 8' and 10' SWD x 3' LWD
– 4' SWD x 8' and 10' LWD; 8' and 10' SWD x 4' LWD
Special sizes available on request.
Expanded Mesh Grating also produced in Aluminum and Stainless.
 
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     DEFLECTION DATA
CONCENTRATED UNIFORM
24" SPAN 36" SPAN 48" SPAN 24" SPAN 36" SPAN 48" SPAN
C 275# 165# 75# U 275# 100# –
3# D .250" .250" .250" D .250" .220" –
C 440# 220# 100# U 350# 150# 50#
4# D .250" .250" .250" D .240" .245" .250"
C 540# 310# 140# U 600# 175# 100#
5# D .245" .250" .250" D .240" .240" .250"
C 800# 300# 150# U 800# 300# 115#
6.25# D .220" .240" .240" D .220" .250" .240"
​ ​ ​ ​ ​ ​

 

C= Concentrated load per square foot     
U= Uniform load per square foot     
D= Deflection in inches      
Material meets U.S. Federal specification RR-G-661b for deflection requirements and all requirements of U.S. Military specifications MIL-M-17194-C and MIL-6-18015  

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