Gauge of Core and Barb

Barb spacing 3″

Barb spacing 4″

Barb spacing 5″

12 x12

6.06

6.75

7.27

12 x14

7.33

7.90

8.30

12 -1/2 x 12 -1/2

6.92

7.71

8.30

12 -1/2 x14

8.10

8.81

9.22

13 x13

7.98

8.89

9.57

13 x14

8.84

9.68

10.29

13 -1/2×14

9.60

10.61

11.47

14 x14

10.45

11.65

12.54

14 -1/2×14-1/2

11.98

13.36

14.37

15 x15

13.89

15.49

16.66

15 -1/2 x15 -1/2

15.34

17.11

18.40