HVAC Ductwork, Air Handling & Mechanical Products calculator
Duct Section or Fitting Cost Per Unit Calculator
Cost per unit for ductwork and air handling products combines raw material cost, direct fabrication labor, shop overhead and burden, and any fixed project charges allocated to the job. For duct sections, material cost is driven by sheet metal gauge, coil width, and the weight of the cut blank. Labor cost depends on section complexity and your shop rate. Applying an overhead factor accounts for tooling, equipment depreciation, facility, and supervision that are not captured in the direct labor rate. Fixed project costs cover engineering, submittals, and project management that do not vary with section count.
What this calculator does
- Estimate cost per duct section, fitting, or air handling unit. Combine material cost per unit, fabrication labor rate, an overhead and burden factor, and fixed project costs to calculate a total and a per-unit cost for quoting and job cost comparison.
- Use this when building a quote for ductwork fabrication or AHU supply and you need a defensible cost per section, cost per fitting, or cost per air handling unit that includes material, labor, overhead, and fixed project charges. Compare against your target sell price to check margin before submitting.
- Turns number of duct sections or units, material cost per unit, overhead and burden factor into a weighted cost for cost per unit in hvac ductwork, air handling and mechanical products.
Formula used
- Total variable cost = units × material cost per unit × overhead factor
- Total cost = variable cost + fixed project cost
- Cost per unit = total cost ÷ number of units
Inputs explained
- Number of duct sections or units: undefined
- Material cost per unit: undefined
- Overhead and burden factor: undefined
- Fixed project cost allocation: undefined
How to use the result
- Use it when cost per unit in hvac ductwork, air handling and mechanical products is being scored for capture or weighted cost.
- Risk-adjustments and discount rates are not in the formula; layer them on top for capital reviews.
Common questions
- How does this cost per unit calculator help my hvac ductwork, air handling and mechanical products team? Estimate cost per duct section, fitting, or air handling unit. Combine material cost per unit, fabrication labor rate, an overhead and burden factor, and fixed project costs to calculate a total and a per-unit cost for quoting and job cost comparison. You get a weighted cost you can defend before quoting, scheduling, or sign-off.
- Which inputs change the weighted cost the most? number of duct sections or units, material cost per unit, overhead and burden factor usually move the weighted cost most. Pull from measured hvac ductwork, air handling and mechanical products runs, supplier data, and recent quotes rather than memory.
- How should I use the result? Use the weighted cost in the hvac ductwork, air handling and mechanical products business case or quote build-up.
- What should I verify first? Confirm the capture factor is honest; over-stated capture is the most common reason these models miss.
Last reviewed 2026-05-12.