When most people budget for a dust collection system, they think about the collector itself — the baghouse or cartridge unit, the fan, the controls. The ductwork tends to be an afterthought. Then the quote comes in and the duct runs are 30% to 50% of the total project cost.

That’s not because anyone is overcharging. Industrial ductwork is engineered to move air at specific velocities through a facility — often hundreds of feet of pipe, dozens of fittings, blast gates, hoods, and support hardware. It’s a significant material and labor investment, and it’s the backbone of the entire system. A perfectly sized collector with poorly designed ductwork won’t capture dust properly.

Here’s a transparent breakdown of what drives ductwork costs across the projects we design and install in Arizona, California, Nevada, New Mexico, and Utah.

Typical Cost Ranges

We can’t give you an exact number without knowing your layout, because every facility is different. But here are realistic ranges based on actual projects we’ve completed.

These ranges include material, fittings, hangers, hardware, and installation labor. They don’t include the collector, fan, explosion protection, or electrical work — those are separate line items. For a complete picture, see our 2026 Dust Collection System Cost Guide.

What Drives the Cost Up

Distance and complexity. More linear feet of duct obviously costs more. But it’s the fittings — elbows, branches, transitions, reducers — that add up faster than people expect. A straight run of 6-inch galvanized pipe is relatively inexpensive per foot. Add a 45-degree elbow, a wye branch, a blast gate, and a hood at the end, and you’ve added significant cost at each point. Complex layouts with lots of turns, elevation changes, and branch connections cost more than simple, direct runs.

Pipe diameter. Larger systems require larger duct — and cost doesn’t scale linearly. Moving from 6-inch to 12-inch duct roughly doubles the material cost per foot. Going to 18-inch or 24-inch main trunk lines increases cost further, plus the support hardware gets heavier and installation labor goes up. The pipe diameter is dictated by the required CFM and transport velocity for your dust type — it’s an engineering calculation, not a choice.

Material. Standard galvanized steel is the baseline for most dust collection ductwork. 304 stainless steel runs 1.5x to 2.5x more and is required for corrosive environments, food processing, pharmaceutical applications, and some high-temperature applications. Aluminum is another option for specific lightweight or non-sparking requirements. The material choice often comes from the Dust Hazard Analysis or industry-specific regulations.

Gauge (wall thickness). Heavier-gauge duct costs more but lasts longer, especially with abrasive dust. Standard galvanized duct for general dust collection is typically 20–22 gauge. Abrasive materials like metal grindings or concrete dust may require 16-gauge or heavier. Some high-wear applications need 10-gauge duct with AR (abrasion-resistant) steel.

Clamp-together vs. welded. Clamp-together duct systems like Nordfab Quick-Fit install faster and cost less in labor, but the fittings themselves can cost slightly more than standard welded fittings. Welded duct is more permanent and may be required for certain high-pressure or airtight applications. For most manufacturing dust collection, clamp-together is the better value because the labor savings outweigh the material premium.

Installation access. If your ductwork runs along open ceiling trusses with good lift access, installation goes smoothly. If you’re routing through tight spaces, around existing equipment, above production areas that can’t shut down, or through walls and rooflines — labor hours go up significantly. Outdoor runs require weather protection and potentially different support methods.

Where You Can Save Money

Good engineering upfront. A properly engineered duct layout minimizes total footage, reduces the number of fittings, and right-sizes every section of pipe. Poor duct design wastes money twice — once on unnecessary material and again on the oversized fan needed to push air through a poorly designed system. We’ve seen layouts where relocating the collector saved 30% on ductwork costs.

Collector placement. Putting the collector as close as practical to the dust sources reduces total duct length. Every foot of duct you eliminate saves material, fittings, hangers, and labor. Sometimes it makes more sense to use two smaller collectors closer to the work rather than one large collector far away.

Minimize elbows and branches. Every elbow adds friction loss and cost. 90-degree elbows are the worst offenders — two 45-degree elbows with a straight section between them flow better and sometimes cost less. Good duct design minimizes direction changes and uses gentle angles wherever possible.

Use VFDs. A variable frequency drive on the fan motor lets you adjust airflow based on how many pickup points are active. This doesn’t directly reduce ductwork cost, but it reduces energy costs by 20–40% over the life of the system — which offsets the ductwork investment over time.

What About Existing Ductwork?

If you’re replacing a collector but keeping the ductwork, that works in some cases. But existing ductwork was designed for the original collector’s CFM and static pressure. If the new system is different — more pickup points, different fan, different collector location — the ductwork may need modifications or replacement anyway.

We always evaluate existing ductwork during a site assessment to determine what can be reused and what needs to change. Reusing good ductwork that’s properly sized is a significant cost savings. Reusing ductwork that’s undersized, corroded, or poorly routed just creates a new system with old problems.