Straight Ducts

Rectangular Cut Duct (<10’) [<3m] length

ATS Part Type #105


Rectangular Duct (10’) [3m] length

ATS Part Type #110

ATS standard rectangular duct length is 10’–0”. 20’–0” lengths are also available when the widest span is not greater than 54”. Please specify rib locations, if the standard locations (shown above) conflict with your system design. NOTE: on a 10’ length ribs are located 2.5’ from each end. If system vacuum will exceed 14” W.C., contact ATS because rib spacing will need to be modified. For more information on other ATS rectangular ducts, please refer to the part types: #105–Rectangular Cut Duct and #109–Rectangular Cut Duct (20’) [6m].

Width Height Wall Thickness Bow Actual O.D. at Peak of Bow
in mm in mm in in mm in mm in mm
2 50 * * 0.19  3/16 5  1/8  3 2 5/8  67
3 75 * * 0.19  3/16 5  1/8  3 3 5/8  92
4 100 * * 0.19  3/16 5  1/8  3 4 5/8  117
6 150 * * 0.19  3/16 5  1/8  3 6 5/8  168
8 200 * * 0.19  3/16 5  1/8  3 8 5/8  219
10 250 * * 0.19  3/16 5  3/16 5 10 3/4  273
12 300 * * 0.19  3/16 5  3/16 5 12 3/4  324
14 350 * * 0.19  3/16 5  1/4  6 14 7/8  378
16 400 * * 0.19  3/16 5  1/4  6 16 7/8  429
18 450 * * 0.19  3/16 5  5/16 8 19 1/8  486
20 500 * * 0.25  1/4  6  5/16 8 21 1/8  537
22 550 * * 0.25  1/4  6  3/8  10 23 1/4  591
24 600 * * 0.25  1/4  6  3/8  10 25 1/4  641
26 650 * * 0.25  1/4  6  7/16 11 27 1/2  699
28 700 * * 0.25  1/4  6  7/16 11 29 1/2  749
30 750 * * 0.25  1/4  6  1/2  13 31 5/8  803
32 800 * * 0.31  5/16 8  1/2  13 33 5/8  854
34 850 * * 0.31  5/16 8  9/16 14 35 3/4  908
36 900 * * 0.31  5/16 8  9/16 14 37 3/4  959
38 950 * * 0.31  5/16 8  5/8  16 39 7/8  1013
40 1000 * * 0.25  1/4  6  5/8  16 41 7/8  1064
42 1050 * * 0.25  1/4  6  11/16 17 44 1/8  1121
44 1100 * * 0.25  1/4  6  11/16 17 46 1/8  1172
46 1150 * * 0.25  1/4  6  3/4  19 48 1/4  1226
48 1200 * * 0.25  1/4  6  3/4  19 50 1/4  1276
50 1250 * * 0.25  1/4  6  3/4  19 52 1/4  1327
52 1300 * * 0.25  1/4  6  13/16 21 54 3/8  1381
54 1350 * * 0.25  1/4  6  13/16 21 56 3/8  1432
60 1500 * * 0.25  1/4  6  7/8  22 62 1/2  1588
68 1700 * * 0.25  1/4  6  7/8  22 70 1/2  1791
72 1800 * * 0.25  1/4  6 25 74 7/8  1902
84 2100 * * 0.31  5/16 8 1 1/8  29 87 1/8  2213
120 3000 * * 0.44  7/16 11 1 7/8  48 124 5/8  3165

*Specified by customer