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Ductboard Calculator
Select the ductboard size, enter the dimensions and select the fractions if any.
Ductboard
1 inch
1.5 inch
2 inch
Inside dimensions:
side 1-
0
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
side 2 -
0
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
Duct tool instructions
