Spiral Ducts - Dimensions

Standard dimensions of spiral ducts - Imperial units.

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Physical properties of spiral pipe - imperial units - are indicated below.

Nominal Diameter	Outside Diameter	Wall Thickness	Weight
(in)	(in)	(in)	(lb/ft)
3	3	0.0276	1.1
4	4	0.0276	1.4
5	5	0.0276	1.7
6	6	0.0276	2.0
7	7	0.0276	2.4
8	8	0.0276	2.8
9	9	0.0276	3.1
10	10	0.0276	3.4
11	11	0.0276	3.8
12	12	0.0276	4.1
13	13	0.0276	4.5
14	14	0.0276	4.8
15	15	0.0276	5.1
16	16	0.0276	5.5
17	17	0.0276	5.8
18	18	0.0276	6.1
20	20	0.0276	6.8
22	22	0.0336	9.1
24	24	0.0336	9.9
26	26	0.0336	10.8
28	28	0.0336	11.6
30	30	0.0336	12.4
32	32	0.0336	13.3
34	34	0.0336	14.1
36	36	0.0336	14.9
38	38	0.0396	18.5
40	40	0.0396	19.5
42	42	0.0396	20.5
44	44	0.0396	21.5
46	46	0.0396	22.5
48	48	0.0396	23.4
50	50	0.0516	32.4
52	52	0.0516	33.7
54	54	0.0516	35.0
56	56	0.0516	36.3
58	58	0.0516	37.6
60	60	0.0516	38.8
62	62	0.0516	41.1
64	64	0.0516	43.4
66	66	0.0516	44.7
68	68	0.0516	46.1
70	70	0.0516	47.4
72	72	0.0516	48.8

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