6 Sided Polygon Rafter Table ( 6 - gon )


central angle = 60
working angle = 30
plan angle = 60
miter angle = 6.93 & 12 (30.00)
hip run per foot = 13.86
apothem multiplier = 1.15470
side wall multiplier = 1.15470

Pitch

Roof Angles

Frieze Block Angles

Hip Rafters

Jack Rafters

Roof Pitch

Angle

Hip Pitch

Angle

Angle

Saw Bevel

Side Cut

Angle

Backing Angle

Hip Drop

2x

Hip Drop

4x

Length

Per-FT

Side Cut

Angle

First
12 O.C.

First
16 O.C.

First
24 O.C.

Spaced
12 O.C.

Spaced
16 O.C.

Spaced
24 O.C.

Multiplier

0

0.00

0.00

0

30

30.00

0.00

0.00

0.00

13.86

30

21.88

28.81

42.67

20.78

27.71

41.57

1.73205

1

4.76

4.13

2.75

29.89

29.94

2.38

0.03

0.07

13.89

29.91

21.96

28.91

42.82

20.86

27.81

41.71

1.73805

2

9.46

8.21

5.42

29.55

29.74

4.72

0.06

0.15

14.00

29.66

22.18

29.21

43.26

21.07

28.10

42.14

1.75594

3

14.04

12.22

7.97

29.02

29.44

6.97

0.09

0.22

14.18

29.25

22.56

29.70

43.98

21.42

28.57

42.85

1.78536

4

18.43

16.10

10.35

28.32

29.02

9.10

0.12

0.29

14.42

28.71

23.07

30.37

44.98

21.91

29.21

43.82

1.82574

5

22.62

19.84

12.52

27.49

28.51

11.09

0.16

0.36

14.73

28.05

23.71

31.21

46.22

22.52

30.02

45.03

1.87639

6

26.57

23.41

14.48

26.57

27.92

12.92

0.19

0.44

15.10

27.31

24.47

32.21

47.70

23.24

30.98

46.48

1.93649

7

30.26

26.80

16.22

25.59

27.26

14.59

0.22

0.51

15.52

26.51

25.33

33.35

49.40

24.06

32.08

48.12

2.00520

8

33.69

30.00

17.76

24.58

26.57

16.10

0.25

0.58

16.00

25.66

26.30

34.63

51.28

24.98

33.31

49.96

2.08167

9

36.87

33.00

19.11

23.58

25.84

17.46

0.28

0.66

16.52

24.79

27.35

36.01

53.33

25.98

34.64

51.96

2.16506

10

39.81

35.82

20.28

22.59

25.09

18.67

0.31

0.73

17.09

23.92

28.48

37.50

55.54

27.06

36.07

54.11

2.25462

11

42.51

38.44

21.31

21.63

24.33

19.75

0.34

0.80

17.69

23.05

29.69

39.08

57.88

28.20

37.59

56.39

2.34965

12

45.00

40.89

22.21

20.70

23.58

20.70

0.37

0.87

18.33

22.21

30.95

40.74

60.34

29.39

39.19

58.79

2.44949

13

47.29

43.17

22.99

19.82

22.83

21.56

0.41

0.95

19.00

21.39

32.26

42.48

62.91

30.64

40.86

61.29

2.55359

14

49.40

45.30

23.67

18.99

22.10

22.31

0.44

1.02

19.70

20.59

33.62

44.27

65.56

31.94

42.58

63.87

2.66145

15

51.34

47.27

24.27

18.20

21.39

22.98

0.47

1.09

20.42

19.83

35.03

46.12

68.30

33.27

44.36

66.54

2.77263

16

53.13

49.11

24.79

17.46

20.70

23.58

0.50

1.17

21.17

19.11

36.47

48.02

71.11

34.64

46.19

69.28

2.88675

17

54.78

50.82

25.25

16.76

20.04

24.11

0.53

1.24

21.93

18.42

37.95

49.96

73.99

36.04

48.06

72.08

3.00347

18

56.31

52.41

25.66

16.10

19.40

24.58

0.56

1.31

22.72

17.76

39.45

51.94

76.92

37.47

49.96

74.94

3.12250

19

57.72

53.90

26.02

15.49

18.79

25.01

0.59

1.39

23.52

17.13

40.98

53.95

79.90

38.92

51.90

77.85

3.24358

20

59.04

55.28

26.34

14.91

18.20

25.39

0.62

1.46

24.33

16.54

42.53

56.00

82.93

40.40

53.86

80.80

3.36650

21

60.26

56.58

26.62

14.36

17.64

25.73

0.66

1.53

25.16

15.98

44.11

58.07

86.00

41.89

55.86

83.79

3.49106

22

61.39

57.80

26.88

13.85

17.10

26.04

0.69

1.60

26.00

15.45

45.70

60.17

89.10

43.41

57.87

86.81

3.61709

23

62.45

58.93

27.11

13.37

16.59

26.31

0.72

1.68

26.85

14.95

47.31

62.28

92.24

44.93

59.91

89.87

3.74444

24

63.43

60.00

27.31

12.92

16.10

26.57

0.75

1.75

27.71

14.48

48.93

64.42

95.41

46.48

61.97

92.95

3.87298


Framing Square usage Example: 8:12 Pitch
(Rafter Length Per Ft = 14.42) (Hip Rafter Length Per Ft = 16.00)
SS Angle = Speed Square Angle
Saw Angle produces compound Speed Square Angle
 
Tongue (8.00) Blade (12.00) for Rafter Plumb Cut Angle (SS Angle 33.69)
Tongue (12.00) Blade (8.00) for Rafter Level Cut Angle (SS Angle 56.31)
 
Tongue (8.00) Blade (13.86) for Hip Rafter Plumb Cut Angle (SS Angle 30.00)
Tongue (13.86) Blade (8.00) for Hip Rafter Level Cut Angle (SS Angle 60.00)
 
Tongue (8.00) Blade (16.00) for Hip Side Cut Angle (SS Angle 26.57) (Saw Angle 60.00)
Tongue (4.62) Blade (16.00) for Hip Backing Angle (SS Angle 16.10)
 
Tongue (6.93) Blade (14.42) for Jack Rafter Side Cut Angle (SS Angle 25.66) (Saw Angle 60.00)
 
Tongue (4.62) Blade (14.42) for Purlin Rafter Plumb Cut Angle (SS Angle 17.76) (Saw Angle 16.10)
Tongue (6.93) Blade (14.42) for Purlin Rafter Cross Cut Angle (SS Angle 25.66)
 
Tongue (4.62) Blade (14.42) for Roof Sheathing Plumb Cut Angle (SS Angle 17.76) (Saw Angle 16.10)
Tongue (6.93) Blade (14.42) for Roof Sheathing Cross Cut Angle (SS Angle 25.66)
 
Tongue (8.00) Blade (12.00) for Miter Box Gable Mould Plumb Cut Angle (SS Angle 33.69)
Tongue (8.00) Blade (13.86) for Miter Box 2 Cord Polygon Gable Mould Hip Plumb Cut Angle (SS Angle 30.00)
Tongue (6.93) Blade (12.00) for Miter Box 2 Cord Polygon Gable Mould Hip Cross Cut Angle (SS Angle 30.00) (Saw Angle 30.00)
 
Tongue (4.62) Blade (14.42) for Frieze Block Plumb Cut Angle (SS Angle 17.76)
Tongue (6.93) Blade (14.42) for Frieze Block Cross Cut Angle (SS Angle 25.66) (Saw Angle 24.58)
 
Tongue (4.62) Blade (14.42) for Square Cut Fascia Plumb Cut Angle (SS Angle 17.76)
Tongue (6.93) Blade (14.42) for Square Cut Fascia Cross Cut Angle (SS Angle 25.66) (Saw Angle 24.58)
 
Tongue (1.60) Blade (6.93) for Hip Rafter Square Cut Fascia Plumb Cut Angle (SS Angle 7.59)
Tongue (6.93) Blade (14.42) for Hip Rafter Square Cut Fascia Cross Cut Angle (SS Angle 25.66) (Saw Bevel Angle 24.58)