STANDARD WEIGHT OF GAUGES

UNCOATED SHEETS

Number of Gauge

Weight Per Square Foot

Approx. Thick. in. Fractions of an inch

Number of Gauge

Weight Per Square Foot

Approx. Thick. in Fractions of an inch

7

7.5

3⁄16

19

1.75

7⁄160

8

6.875

11⁄64

20

1.5

3⁄80

9

6.25

5⁄32

21

1.375

11⁄320

10

5.625

9⁄64

22

1.25

1⁄32

11

5.

1⁄8

23

1.125

9⁄320

12

4.375

7⁄64

24

1.

1⁄40

13

3.75

3⁄32

25

.875

7⁄320

14

3.125

5⁄64

26

.75

3⁄160

15

2.812

9⁄128

27

.688

11⁄640

16

2.5

1⁄16

28

.625

1⁄64

17

2.25

9⁄160

29

.562

9⁄640

18

2.

1⁄20

30

.5

1⁄80