Total load, 123 pounds per square inch.

Size of Joists.

Dist. on Centres.

White Pine.

Spruce or Norway Pine.

Oregon or Texas Pine.

Georgia Pine.

Ins.

Ft.

Ins.

Ft.

Ins.

Ft.

Ins.

Ft.

Ins.

3x8

12

11

7

12

7

13

0

14

0

3x8

16

10

8

11

4

11

9

12

8

2x10

12

12

10

13

9

14

2

15

2

2x10

16

11

7

12

6

12

10

13

10

3x10

12

14

8

15

8

16

2

17

5

3x10

16

13

4

14

3

14

9

15

10

2x12

12

15

4

16

6

17

0

18

3

2x12

16

14

0

15

0

15

5

16

7

Total load, 126 pounds per square foot.

3x12

12

17

6

18

8

19

3

20

9

3x12

16

15

10

17

0

17

7

18

11

2x14

12

17

10

19

1

19

8

21

2

2x14

16

16

2

17

4

17

11

19

3

2X14

12

19

3

20

6

21

2

22

9

2XI4

16

17

6

18

8

19

3

20

9

3x14

12

20

5

21

9

22

6

24

3

3x14

16

18

7

19

10

20

6

22

1