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Wall Length
6'
7'
8'
9'
10'
11'
12'
13'
14'
15'
16'
17'
18'
19'
20'
21'
22'
23'
24'
25'
26'
27'
28'
29'
30'
31'
32'
33'
34'
35'
36'
37'
38'
39'
40'
41'
42'
43'
44'
45'
46'
47'
48'
49'
50'
51'
52'
53'
54'
55'
56'
57'
58'
59'
60'
61'
62'
63'
64'
65'
66'
67'
68'
69'
70'
71'
72'
73'
74'
75'
76'
77'
78'
79'
80'
81'
82'
83'
84'
85'
86'
87'
88'
89'
90'
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Rafter Thickness
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Wall Width
4'
5'
6'
7'
8'
9'
10'
11'
12'
13'
14'
15'
16'
17'
18'
19'
20'
21'
22'
23'
24'
25'
26'
27'
28'
29'
30'
31'
32'
33'
34'
35'
36'
37'
38'
39'
40'
41'
42'
43'
44'
45'
46'
47'
48'
49'
50'
51'
52'
53'
54'
55'
56'
57'
58'
59'
60'
61'
62'
63'
64'
65'
66'
67'
68'
69'
70'
71'
72'
73'
74'
75'
76'
77'
78'
79'
80'
81'
82'
83'
84'
85'
86'
87'
88'
89'
90'
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Rafter Depth
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
19"
20"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Roof Angle
°=
_
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
in 12
Ridge Thickness
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Overhang (level)
_
1'
2'
3'
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Rafter Spacing
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
19"
20"
21"
22"
23"
24"
25"
26"
27"
28"
29"
30"
31"
32"
33"
34"
35"
36"
37"
38"
39"
40"
41"
42"
43"
44"
45"
46"
47"
48"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Overhang Gable
_
1'
2'
3'
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Adjust Equal Spacing
Exact spacing
Birdsmouth
Seat Cut
_
1"
2"
3"
4"
5"
6"
7"
8"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
End Rafter Setin
_
1"
2"
3"
4"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Bottom Plumbcut
Running Setout Points
Extend Ridge
Battens
Top Batten Set-in from top end of Rafter
NOT Ridge Centre
Batten Spacing
1'
2'
3'
4'
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Top Batten Set-in
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Batten Width
1"
2"
3"
4"
5"
6"
7"
8"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Bottom Batten Set-in
_
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
13"
14"
15"
16"
17"
18"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
Adjust Equal Batten Spacing
Exact Batten Spacing
With a building length of
40'
and width of
20'
, a roof overhang of
2'
the roof is
44'
long and
24'
wide.
At an angle of
22
°, the overall height above outer wall is
4'9~1/8"
The ridge top is
4'8~13/16"
above top of wall.
The roof area is
1138.93
ft²
Rafter spacing is
1'3~15/16"
(Next larger spacing =
1'4~1/2"
Next smaller =
1'3~7/16"
)
139'9~1/4"
lineal eave @
2'
overhang =
279.5
ft² level
( or
293.4
ft² with side eaves =
22
° )
Gable Area (under rafters ) =
40.4
ft²
Roof Volume (top of wall/plate to under rafters) =
1616.1
ft³
Roof Volume (top of wall/plate to top of rafters) =
2191.32
ft³
You need: 1 Ridge @
44' × 1~1/2"
62 Rafters @
12'10~1/2" × 8" × 1~1/2"
Whats This?
..
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Greg Tarrant
ph: Australia +61 7 40987645
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With angle of
°
Close
If Plumb Cut =
_
1"
2"
3"
4"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
?
If Seat Cut =
_
1"
2"
3"
4"
5"
6"
7"
8"
_
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
15/16
?
(Rafter depth
) To set HAP = 2/3 rafter plumbcut length
set the