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Gauge Chart.

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Hot Rolled, P&O, Cold Rolled

Gauge

Decimal Equivalent

Hot Rolled, P&O Tolerance Range

Cold Rolled Tolerance Range

Lbs. per sq. ft.

3

.239

.229 to .249

10.000

4

.224

.214 to .234

9.375

5

.209

.199 to .219

8.750

6

.194

.184 to .204

8.125

7

.179

.171 to .187

7.500

8

.164

.156 to .172

6.875

9

.149

.141 to .157

6.250

10

134

.126 to .142

.128 to .140

5.625

11

.120

.112 to .128

.114 to .126

5.000

12

.105

.097 to .113

.099 to .112

4.375

13

.090

.083 to .097

.085 to .095

3.750

14

.075

.068 to .082

.070 to .080

3.125

15

.067

.060 to .075

.062 to .072

2.812

16

.060

.053 to .067

.055 to .065

2.500

17

.054

.048 to .060

.050 to .058

2.250

18

.048

.044 to .052

2.000

19

.042

.038 to .046

1.750

20

.036

.033 to .039

1.500

21

.033

.030 to .036

1.375

22

.030

.027 to .033

1.250

23

.027

.024 to .030

1.125

24

.024

.021 to .027

1.000

25

.021

.018 to .024

.875

26

.018

.016 to .020

.750

27

.016

.014 to .018

.688

28

.015

.013 to .017

.625

29

.0014

.562

30

.012

.500

Galvanized

Gauge

Decimal Equivalent

Tolerance Range

Lbs. per sq. ft.

7

8

0.168

.159 to .177

7.031

9

0.153

.144 to .162

6.406

10

0.138

.129 to .147

5.781

11

0.123

.114 to .132

5.156

12

0.108

.099 to .117

4.531

13

0.093

.085 to .101

3.906

14

0.079

.071 to .087

3.281

15

0.071

.065 to .077

2.969

16

0.064

.058 to .070

2.656

17

0.058

.053 to .063

2.406

18

0.052

.047 to .057

2.156

19

0.046

.041 to .051

1.906

20

0.04

.036 to .044

1.656

21

0.037

.033 to .041

1.531

22

0.034

.030 to .038

1.406

23

0.031

.027 to .035

1.281

24

0.028

.024 to .032

1.156

25

0.025

.021 to .029

1.031

26

0.022

.019 to .025

0.906

27

0.02

.017 to .023

0.844

28

0.019

.016 to .022

0.781

29

0.017

.014 to .020

0.719

30

0.016

.013 to .019

0.656

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