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