T-39: Duct Accessories

Name Fabricate (hours each) Fabricate (hours per foot) Field (hours each) Field (hours per foot)
Volume Dampers
0-4 linear feet (perimeter)0.70.6
4-8 linear feet (perimeter)1.21.0
8-15 linear feet (perimeter)2.11.8
15 and up linear feet (perimeter)0.20.2
Fire Dampers
0-4 linear feet (perimeter)0.8
4-8 linear feet (perimeter)1.1
8-15 linear feet (perimeter)1.5
15 and up linear feet (perimeter)0.1
Smoke Dampers
0-4 linear feet (perimeter)0.9
4-8 linear feet (perimeter)1.2
8-15 linear feet (perimeter)1.7
15 and up linear feet (perimeter)0.1
Fire/Smoke Dampers
0-4 linear feet (perimeter)0.9
4-8 linear feet (perimeter)1.3
8-15 linear feet (perimeter)1.8
15 and up linear feet (perimeter)0.1
Fire/Smoke Damper Sleeves
0-4 linear feet (perimeter)0.50.5
4-8 linear feet (perimeter)0.70.7
8-15 linear feet (perimeter)1.11.0
15 and up linear feet (perimeter)0.10.1
Fire/Smoke Damper Sleeves (With Angle)
0-4 linear feet (perimeter)0.91.0
4-8 linear feet (perimeter)1.11.2
8-15 linear feet (perimeter)1.71.6
15 and up linear feet (perimeter)0.10.1
Correction Factor: Thru-penetration Fire Stop
* Wall (linear feet - perimeter)
* Floor (linear feet - perimeter)
Duct Access Doors
0-1.0 square feet0.80.3
1.0-1.5 square feet0.90.4
1.5-2.0 square feet1.10.4
2.0-2.5 square feet1.30.5
2.5-3.0 square feet1.50.6
3.0 and up square feet0.80.3
Control Dampers
0-4 linear feet (perimeter)2.00.9
4-8 linear feet (perimeter)2.61.5
8-15 linear feet (perimeter)3.52.6
15 and up linear feet (perimeter)0.30.2
Barometric/Automatic Dampers
0-4 linear feet (perimeter)2.01.0
4-8 linear feet (perimeter)2.71.7
8-15 linear feet (perimeter)3.62.8
15 and up linear feet (perimeter)0.30.2
Round Dampers
3-4 inch (diameter)0.30.2
4-6 inch (diameter)0.30.2
6-8 inch (diameter)0.30.2
8-10 inch (diameter)0.30.3
10-14 inch (diameter)0.40.3
14 and up inch (diameter)0.20.1
Louvers
0-6 linear feet (perimeter)1.81.0
6-12 linear feet (perimeter)2.71.6
12-18 linear feet (perimeter)4.22.8
18-30 linear feet (perimeter)7.14.6
30 and up linear feet (perimeter)0.30.2


Base - Unadjusted

T-39: Duct Accessories

Volume Dampers
0-4 linear feet (perimeter)0.70.6
4-8 linear feet (perimeter)1.21.0
8-15 linear feet (perimeter)2.11.8
15 and up linear feet (perimeter)0.20.2
Fire Dampers
0-4 linear feet (perimeter)0.8
4-8 linear feet (perimeter)1.1
8-15 linear feet (perimeter)1.5
15 and up linear feet (perimeter)0.1
Smoke Dampers
0-4 linear feet (perimeter)0.9
4-8 linear feet (perimeter)1.2
8-15 linear feet (perimeter)1.7
15 and up linear feet (perimeter)0.1
Fire/Smoke Dampers
0-4 linear feet (perimeter)0.9
4-8 linear feet (perimeter)1.3
8-15 linear feet (perimeter)1.8
15 and up linear feet (perimeter)0.1
Fire/Smoke Damper Sleeves
0-4 linear feet (perimeter)0.50.5
4-8 linear feet (perimeter)0.70.7
8-15 linear feet (perimeter)1.11.0
15 and up linear feet (perimeter)0.10.1
Fire/Smoke Damper Sleeves (With Angle)
0-4 linear feet (perimeter)0.91.0
4-8 linear feet (perimeter)1.11.2
8-15 linear feet (perimeter)1.71.6
15 and up linear feet (perimeter)0.10.1
Correction Factor: Thru-penetration Fire Stop
* Wall (linear feet - perimeter)
* Floor (linear feet - perimeter)
Duct Access Doors
0-1.0 square feet0.80.3
1.0-1.5 square feet0.90.4
1.5-2.0 square feet1.10.4
2.0-2.5 square feet1.30.5
2.5-3.0 square feet1.50.6
3.0 and up square feet0.80.3
Control Dampers
0-4 linear feet (perimeter)2.00.9
4-8 linear feet (perimeter)2.61.5
8-15 linear feet (perimeter)3.52.6
15 and up linear feet (perimeter)0.30.2
Barometric/Automatic Dampers
0-4 linear feet (perimeter)2.01.0
4-8 linear feet (perimeter)2.71.7
8-15 linear feet (perimeter)3.62.8
15 and up linear feet (perimeter)0.30.2
Round Dampers
3-4 inch (diameter)0.30.2
4-6 inch (diameter)0.30.2
6-8 inch (diameter)0.30.2
8-10 inch (diameter)0.30.3
10-14 inch (diameter)0.40.3
14 and up inch (diameter)0.20.1
Louvers
0-6 linear feet (perimeter)1.81.0
6-12 linear feet (perimeter)2.71.6
12-18 linear feet (perimeter)4.22.8
18-30 linear feet (perimeter)7.14.6
30 and up linear feet (perimeter)0.30.2