DUCTWORK COST
COMPARISON

Unsealed Metal 26 GA

(Uninsulated)

Metal Lined

(1”, 1.5
PCF Duct Liner)

Metal Wrapped

(0.5”,
0.75 PCF Duct Wrap)

Fiber Glass
Air Duct
Board

(1”
Thick EI 475)

Materials & Accessories

Ductwork

$0.734/SF

$0.734/SF

$0.734/SF

$1.09/SF

Insulation

N/A

$0.460/SF

$0.290/SF

Incl.

Subtotal

$0.734/SF

$1.194/SF

$1.024/SF

$1.09/SF

Labor: Fabrication & Installation

Ductwork

$2.938/SF

$2.938/SF

$2.938/SF

$2.370/SF

Insulation

N/A

$1.430/SF

$1.560/SF

Incl.

Subtotal

$2.938/SF

$4.368/SF

$4.498/SF

$2.370/SF

Total Installed Cost

$3.672/SF

$5.562/SF

$5.522/SF

$3.460/SF

Limitations for Air Duct Board

Fiber Glass Air Duct Board should not be
used:

In
equipment rooms

For
final connections to fans, air handling units or louvers

Outdoors
or underground

In
chemical or fume exhaust systems

In
heat or moisture exhaust systems

For
material conveying systems

In
vertical risers over two floors

In
high pressure systems

Source: R.S. Means
Mechanical Cost Data, 04/03

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©2008