64 Sided Polygon Rafter Table ( 64 - gon )


central angle = 5.625
working angle = 2.8125
plan angle = 87.1875
miter angle = 0.59 & 12 (2.81)
hip run per foot = 12.01
apothem multiplier = 1.00121
side wall multiplier = 0.09825

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

2.8125

2.81

0.00

0.00

0.00

12.01

2.8125

259.51

340.94

503.78

244.27

325.69

488.53

20.35547

1

4.76

4.76

0.23

2.80

2.80

0.23

0.00

0.01

12.06

2.80

260.41

342.12

505.53

245.11

326.82

490.22

20.42602

2

9.46

9.45

0.46

2.77

2.77

0.46

0.01

0.01

12.18

2.77

263.09

345.64

510.73

247.63

330.18

495.27

20.63625

3

14.04

14.02

0.68

2.73

2.73

0.68

0.01

0.02

12.38

2.73

267.50

351.43

519.28

251.78

335.71

503.57

20.98194

4

18.43

18.41

0.89

2.67

2.67

0.89

0.01

0.03

12.66

2.67

273.55

359.38

531.03

257.48

343.30

514.96

21.45655

5

22.62

22.60

1.08

2.60

2.60

1.08

0.02

0.04

13.01

2.60

281.14

369.35

545.76

264.62

352.83

529.24

22.05176

6

26.57

26.54

1.26

2.52

2.52

1.26

0.02

0.04

13.43

2.52

290.15

381.18

563.24

273.10

364.13

546.19

22.75810

7

30.26

30.23

1.42

2.43

2.43

1.42

0.02

0.05

13.90

2.43

300.44

394.70

583.23

282.79

377.05

565.57

23.56560

8

33.69

33.66

1.56

2.34

2.34

1.56

0.02

0.06

14.43

2.34

311.90

409.75

605.47

293.57

391.43

587.14

24.46423

9

36.87

36.84

1.69

2.25

2.25

1.69

0.03

0.06

15.01

2.25

324.39

426.17

629.72

305.33

407.11

610.66

25.44433

10

39.81

39.77

1.80

2.16

2.16

1.80

0.03

0.07

15.63

2.16

337.81

443.80

655.77

317.96

423.95

635.93

26.49688

11

42.51

42.48

1.90

2.07

2.08

1.90

0.03

0.08

16.29

2.07

352.05

462.50

683.41

331.36

441.82

662.73

27.61358

12

45.00

44.97

1.99

1.99

1.99

1.99

0.04

0.09

16.98

1.99

367.01

482.16

712.45

345.44

460.59

690.89

28.78698

13

47.29

47.26

2.07

1.91

1.91

2.07

0.04

0.09

17.70

1.91

382.61

502.65

742.73

360.12

480.17

720.25

30.01042

14

49.40

49.36

2.14

1.83

1.83

2.14

0.04

0.10

18.45

1.83

398.77

523.88

774.10

375.34

500.45

750.67

31.27802

15

51.34

51.31

2.20

1.76

1.76

2.20

0.05

0.11

19.22

1.76

415.42

545.76

806.44

391.02

521.35

782.03

32.58465

16

53.13

53.10

2.25

1.69

1.69

2.25

0.05

0.11

20.01

1.69

432.52

568.23

839.63

407.11

542.81

814.22

33.92578

17

54.78

54.75

2.30

1.62

1.62

2.30

0.05

0.12

20.82

1.62

450.01

591.20

873.58

423.57

564.76

847.14

35.29749

18

56.31

56.28

2.34

1.56

1.56

2.34

0.06

0.13

21.64

1.56

467.85

614.63

908.20

440.36

587.14

880.71

36.69634

19

57.72

57.69

2.38

1.50

1.50

2.38

0.06

0.14

22.48

1.50

485.99

638.46

943.42

457.43

609.91

914.86

38.11935

20

59.04

59.01

2.41

1.45

1.45

2.41

0.06

0.14

23.33

1.45

504.40

662.66

979.17

474.77

633.02

949.53

39.56392

21

60.26

60.23

2.44

1.39

1.40

2.44

0.06

0.15

24.19

1.40

523.07

687.18

1015.40

492.33

656.44

984.67

41.02776

22

61.39

61.36

2.47

1.35

1.35

2.47

0.07

0.16

25.07

1.35

541.95

711.99

1052.06

510.11

680.14

1020.21

42.50888

23

62.45

62.42

2.49

1.30

1.30

2.49

0.07

0.16

25.95

1.30

561.03

737.05

1089.10

528.07

704.09

1056.13

44.00554

24

63.43

63.41

2.52

1.26

1.26

2.52

0.07

0.17

26.84

1.26

580.29

762.36

1126.49

546.19

728.26

1092.39

45.51621


Framing Square usage Example: 8:12 Pitch
(Rafter Length Per Ft = 14.42) (Hip Rafter Length Per Ft = 14.43)
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 (12.01) for Hip Rafter Plumb Cut Angle (SS Angle 33.66)
Tongue (12.01) Blade (8.00) for Hip Rafter Level Cut Angle (SS Angle 56.34)
 
Tongue (0.59) Blade (14.43) for Hip Side Cut Angle (SS Angle 2.34) (Saw Angle 87.19)
Tongue (0.39) Blade (14.43) for Hip Backing Angle (SS Angle 1.56)
 
Tongue (0.59) Blade (14.42) for Jack Rafter Side Cut Angle (SS Angle 2.34) (Saw Angle 87.19)
 
Tongue (0.39) Blade (14.42) for Purlin Rafter Plumb Cut Angle (SS Angle 1.56) (Saw Angle 1.56)
Tongue (0.59) Blade (14.42) for Purlin Rafter Cross Cut Angle (SS Angle 2.34)
 
Tongue (0.39) Blade (14.42) for Roof Sheathing Plumb Cut Angle (SS Angle 1.56) (Saw Angle 1.56)
Tongue (0.59) Blade (14.42) for Roof Sheathing Cross Cut Angle (SS Angle 2.34)
 
Tongue (8.00) Blade (12.00) for Miter Box Gable Mould Plumb Cut Angle (SS Angle 33.69)
Tongue (8.00) Blade (12.01) for Miter Box 2 Cord Polygon Gable Mould Hip Plumb Cut Angle (SS Angle 33.66)
Tongue (0.59) Blade (12.00) for Miter Box 2 Cord Polygon Gable Mould Hip Cross Cut Angle (SS Angle 2.81) (Saw Angle 2.81)
 
Tongue (0.39) Blade (14.42) for Frieze Block Plumb Cut Angle (SS Angle 1.56)
Tongue (0.59) Blade (14.42) for Frieze Block Cross Cut Angle (SS Angle 2.34) (Saw Angle 2.34)
 
Tongue (0.39) Blade (14.42) for Square Cut Fascia Plumb Cut Angle (SS Angle 1.56)
Tongue (0.59) Blade (14.42) for Square Cut Fascia Cross Cut Angle (SS Angle 2.34) (Saw Angle 2.34)
 
Tongue (0.01) Blade (0.59) for Hip Rafter Square Cut Fascia Plumb Cut Angle (SS Angle 0.06)
Tongue (0.59) Blade (14.42) for Hip Rafter Square Cut Fascia Cross Cut Angle (SS Angle 2.34) (Saw Bevel Angle 2.34)