32 Sided Polygon Rafter Table ( 32 - gon )


central angle = 11.25
working angle = 5.625
plan angle = 84.375
miter angle = 1.18 & 12 (5.63)
hip run per foot = 12.06
apothem multiplier = 1.00484
side wall multiplier = 0.19698

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

5.625

5.63

0.00

0.00

0.00

12.06

5.625

129.42

170.03

251.25

121.84

162.45

243.68

10.15317

1

4.76

4.74

0.47

5.61

5.61

0.47

0.01

0.01

12.10

5.61

129.86

170.62

252.13

122.26

163.01

244.52

10.18836

2

9.46

9.42

0.93

5.55

5.55

0.92

0.01

0.03

12.22

5.55

131.20

172.37

254.72

123.52

164.69

247.04

10.29322

3

14.04

13.97

1.37

5.46

5.46

1.36

0.02

0.04

12.43

5.46

133.40

175.26

258.99

125.59

167.45

251.18

10.46565

4

18.43

18.35

1.78

5.34

5.34

1.78

0.02

0.06

12.70

5.34

136.42

179.23

264.85

128.43

171.24

256.86

10.70238

5

22.62

22.52

2.17

5.19

5.20

2.16

0.03

0.07

13.05

5.19

140.20

184.20

272.19

131.99

175.99

263.98

10.99927

6

26.57

26.45

2.52

5.03

5.04

2.51

0.04

0.09

13.47

5.03

144.69

190.10

280.91

136.22

181.63

272.44

11.35159

7

30.26

30.14

2.84

4.86

4.87

2.83

0.04

0.10

13.94

4.86

149.83

196.84

290.88

141.05

188.07

282.10

11.75436

8

33.69

33.56

3.13

4.68

4.69

3.12

0.05

0.11

14.47

4.68

155.54

204.35

301.97

146.43

195.24

292.86

12.20259

9

36.87

36.74

3.38

4.50

4.51

3.37

0.06

0.13

15.05

4.51

161.77

212.54

314.07

152.30

203.06

304.60

12.69146

10

39.81

39.67

3.61

4.32

4.34

3.60

0.06

0.14

15.67

4.33

168.46

221.33

327.06

158.60

211.46

317.20

13.21647

11

42.51

42.37

3.81

4.14

4.16

3.80

0.07

0.16

16.32

4.15

175.56

230.66

340.84

165.28

220.38

330.56

13.77347

12

45.00

44.86

3.98

3.97

3.99

3.97

0.07

0.17

17.01

3.98

183.02

240.46

355.33

172.31

229.74

344.61

14.35875

13

47.29

47.15

4.14

3.81

3.83

4.13

0.08

0.19

17.73

3.82

190.80

250.68

370.43

179.63

239.50

359.26

14.96899

14

49.40

49.26

4.28

3.66

3.68

4.27

0.09

0.20

18.48

3.67

198.86

261.26

386.07

187.22

249.62

374.43

15.60127

15

51.34

51.21

4.40

3.51

3.53

4.39

0.09

0.21

19.25

3.52

207.17

272.18

402.20

195.04

260.05

390.07

16.25300

16

53.13

53.00

4.51

3.37

3.39

4.50

0.10

0.23

20.03

3.38

215.69

283.38

418.76

203.06

270.75

406.13

16.92195

17

54.78

54.65

4.60

3.24

3.26

4.59

0.10

0.24

20.84

3.25

224.41

294.84

435.69

211.27

281.70

422.55

17.60615

18

56.31

56.18

4.68

3.12

3.14

4.68

0.11

0.26

21.67

3.13

233.31

306.52

452.95

219.65

292.86

439.29

18.30389

19

57.72

57.60

4.76

3.00

3.02

4.75

0.12

0.27

22.50

3.01

242.36

318.41

470.52

228.16

304.22

456.33

19.01368

20

59.04

58.91

4.83

2.89

2.91

4.82

0.12

0.29

23.35

2.90

251.54

330.48

488.35

236.81

315.75

473.62

19.73422

21

60.26

60.14

4.89

2.79

2.81

4.88

0.13

0.30

24.22

2.80

260.85

342.70

506.42

245.57

327.43

491.14

20.46437

22

61.39

61.27

4.94

2.69

2.71

4.94

0.13

0.31

25.09

2.70

270.26

355.08

524.70

254.44

339.25

508.88

21.20314

23

62.45

62.33

4.99

2.60

2.62

4.99

0.14

0.33

25.97

2.61

279.78

367.58

543.17

263.40

351.19

526.79

21.94967

24

63.43

63.32

5.03

2.51

2.53

5.03

0.15

0.34

26.86

2.52

289.38

380.20

561.82

272.44

363.25

544.88

22.70318


Framing Square usage Example: 8:12 Pitch
(Rafter Length Per Ft = 14.42) (Hip Rafter Length Per Ft = 14.47)
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 (12.06) for Hip Rafter Plumb Cut Angle (SS Angle 33.56)
Tongue (12.06) Blade (8.00) for Hip Rafter Level Cut Angle (SS Angle 56.44)
 
Tongue (1.19) Blade (14.47) for Hip Side Cut Angle (SS Angle 4.69) (Saw Angle 84.38)
Tongue (0.79) Blade (14.47) for Hip Backing Angle (SS Angle 3.12)
 
Tongue (1.18) Blade (14.42) for Jack Rafter Side Cut Angle (SS Angle 4.68) (Saw Angle 84.38)
 
Tongue (0.79) Blade (14.42) for Purlin Rafter Plumb Cut Angle (SS Angle 3.13) (Saw Angle 3.12)
Tongue (1.18) Blade (14.42) for Purlin Rafter Cross Cut Angle (SS Angle 4.68)
 
Tongue (0.79) Blade (14.42) for Roof Sheathing Plumb Cut Angle (SS Angle 3.13) (Saw Angle 3.12)
Tongue (1.18) Blade (14.42) for Roof Sheathing Cross Cut Angle (SS Angle 4.68)
 
Tongue (8.00) Blade (12.00) for Miter Box Gable Mould Plumb Cut Angle (SS Angle 33.69)
Tongue (8.00) Blade (12.06) for Miter Box 2 Cord Polygon Gable Mould Hip Plumb Cut Angle (SS Angle 33.56)
Tongue (1.18) Blade (12.00) for Miter Box 2 Cord Polygon Gable Mould Hip Cross Cut Angle (SS Angle 5.63) (Saw Angle 5.63)
 
Tongue (0.79) Blade (14.42) for Frieze Block Plumb Cut Angle (SS Angle 3.13)
Tongue (1.18) Blade (14.42) for Frieze Block Cross Cut Angle (SS Angle 4.68) (Saw Angle 4.68)
 
Tongue (0.79) Blade (14.42) for Square Cut Fascia Plumb Cut Angle (SS Angle 3.13)
Tongue (1.18) Blade (14.42) for Square Cut Fascia Cross Cut Angle (SS Angle 4.68) (Saw Angle 4.68)
 
Tongue (0.05) Blade (1.18) for Hip Rafter Square Cut Fascia Plumb Cut Angle (SS Angle 0.26)
Tongue (1.18) Blade (14.42) for Hip Rafter Square Cut Fascia Cross Cut Angle (SS Angle 4.68) (Saw Bevel Angle 4.68)