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Skylight Replacement Calculator
To use this calculator, measure the
inside drywall opening
of the skylight as shown below.
Width in Inches:
0
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
00
1/8
1/4
3/8
1/2
5/8
3/4
7/8
Height in Inches:
0
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
00
1/8
1/4
3/8
1/2
5/8
3/4
7/8
Compute
Replacement(s):
