🎯The Bottom Line
Buying flexible duct directly from a manufacturer saves 30-50% compared to supply house pricing. A 25-foot section of 6-inch R6 flex duct retails for $100-$120 at a supply house. The same product costs $55-$70 at distributor wholesale and $35-$50 factory-direct in bulk (10+ cases). For a typical 15-unit apartment build using 500+ sections, that is $25,000-$35,000 in savings on ductwork alone. Our Brookshire, TX factory ships anywhere in the continental US within 5-10 business days.
Flexible Duct Pricing Overview (2026)
Flexible duct pricing depends on four variables: duct type (non-insulated, insulated R4.2/R6/R8), inner diameter (4" to 20"), length (standard 25-foot sections), and order quantity. Understanding how each variable affects cost helps you build the most cost-effective purchasing strategy for your project or inventory.
As a US-based flex duct manufacturer with 30 years of experience and a 46,000 sq ft production facility in Brookshire, TX, we publish transparent pricing because we believe contractors and distributors deserve clarity — not the opaque "call for pricing" that most suppliers hide behind.
Three Buying Channels Compared: Factory, Distributor, Retail
The same physical product — identical materials, identical performance — costs dramatically different amounts depending on where you buy it. Here is a real-world comparison using 6-inch R6 insulated flex duct (25-foot section):
| Buying Channel | Price per 25ft Section | Price per Linear Foot | Markup vs Factory | Who Buys Here |
|---|---|---|---|---|
| Factory Direct (50+ sections) | $35-$50 | $1.40-$2.00 | Baseline | Large contractors, distributors, builders |
| Factory Direct (10-49 sections) | $45-$60 | $1.80-$2.40 | +20-30% | Mid-size contractors, property managers |
| Distributor Wholesale | $55-$75 | $2.20-$3.00 | +50-60% | Contractors, installers |
| Supply House / Retail | $100-$120 | $4.00-$4.80 | +100-140% | Homeowners, small contractors |
ℹ️Why Such a Big Price Difference?
Each step in the supply chain adds margin. The manufacturer sells to a master distributor (15-25% markup), who sells to a regional distributor (20-30% markup), who sells to the supply house (25-40% markup), who sells to you. Buying factory-direct eliminates 2-3 middlemen. The product is identical — same wire core, same fiberglass blanket, same metalized jacket, same UL 181 compliance.
Pricing by Duct Type: Non-Insulated, R4.2, R6, R8
The following table shows factory-direct wholesale pricing for all flex duct types across common diameters. These are bulk rates (50+ sections per size). Contact us for exact pricing on your specific order — rates vary with raw material costs and order volume.
| Duct Type | 4" (25ft) | 6" (25ft) | 8" (25ft) | 10" (25ft) | 12" (25ft) |
|---|---|---|---|---|---|
| Non-Insulated | $12-$18 | $16-$24 | $22-$32 | $28-$40 | $35-$50 |
| R4.2 Insulated | $22-$30 | $28-$38 | $36-$48 | $44-$58 | $55-$72 |
| R6 Insulated | $28-$38 | $35-$50 | $48-$65 | $58-$78 | $72-$95 |
| R8 Insulated | $38-$52 | $50-$68 | $65-$88 | $80-$108 | $98-$130 |
Why the range? The low end of each range reflects truckload quantities (200+ sections) with standard packaging. The high end reflects pallet quantities (50-100 sections) with individual section packaging. Material costs also fluctuate with aluminum and fiberglass commodity prices. For the definitive comparison of R6 vs R8 performance and when to spec each, read our detailed R6 vs R8 duct insulation guide.
Volume Discount Structure
Our pricing is structured in four tiers based on order volume. The breakpoints are designed around standard shipping configurations:
| Tier | Quantity | Discount | Shipping Unit | Typical Buyer |
|---|---|---|---|---|
| Tier 1 — Sample | 1-9 sections | List price | Parcel/LTL | First-time buyers, evaluation |
| Tier 2 — Pallet | 10-49 sections | 10-15% off | 1-4 pallets | Single-project contractors |
| Tier 3 — Half Truck | 50-199 sections | 20-25% off | 5-12 pallets | Multi-project contractors, small distributors |
| Tier 4 — Full Truck | 200+ sections | 30-35% off | Full truckload (24-26 pallets) | Distributors, builders with ongoing projects |
💡Pro Tip: Mix Sizes to Hit the Next Tier
Volume tiers are based on total section count across all sizes and types. You can mix 6-inch R6, 8-inch R8, and 10-inch non-insulated in a single order and the total count determines your discount tier. A 60-section mixed order hits Tier 3 pricing — you do not need 60 sections of a single SKU.
Shipping Costs: Pallet vs Truckload
Shipping is often the hidden cost that erodes wholesale savings. Because we ship from our factory in Brookshire, TX (west of Houston), domestic freight is straightforward and fast — no customs, no tariffs, no port delays.
| Shipping Method | Typical Cost | Transit Time | Best For |
|---|---|---|---|
| LTL (1-4 pallets) | $150-$500 per pallet | 3-7 business days | Small orders, 10-49 sections |
| Partial Truckload (5-12 pallets) | $800-$2,500 total | 3-5 business days | Mid-size orders, 50-150 sections |
| Full Truckload (24-26 pallets) | $2,000-$5,000 total | 2-5 business days | Large orders, 200+ sections |
| Local Pickup (Brookshire, TX) | Free | Same day | Houston/Gulf Coast area buyers |
Freight tip: Full truckloads are dramatically more cost-effective per section than LTL. A full truck from Brookshire to Atlanta costs approximately $3,000 total for 200+ sections — roughly $15/section in freight. The same 200 sections shipped as 12 separate LTL pallets would cost $4,000-$6,000 total. If you are ordering 50+ sections, ask us to quote partial truckload instead of LTL — the savings are significant.
For Houston/Gulf Coast contractors: Our factory in Brookshire is 35 miles west of downtown Houston on I-10. You can pick up orders directly from our warehouse with your own truck or trailer at no freight cost. We load your vehicle with a forklift — bring a flatbed or enclosed trailer. Call ahead to schedule pickup during business hours (Monday-Friday, 8AM-5PM CST).
Payment Terms & Account Setup
We offer flexible payment terms to make wholesale purchasing straightforward:
- First order: Prepayment by wire transfer, ACH, or credit card. We understand you are evaluating a new supplier — prepayment protects both parties on the first transaction.
- Second order onward: Net 30 terms available with approved credit application. Most contractors and distributors qualify based on business history and trade references.
- Ongoing accounts: Net 30 standard. Net 45 or Net 60 available for distributors with $50,000+/year volume and strong payment history. 2% early payment discount for invoices paid within 10 days (2/10 Net 30).
- Project-based orders: For large construction projects (100+ sections), we offer progress billing — 50% at order, 50% at shipment — to align with your project cash flow.
How to Place a Wholesale Order
The ordering process is designed to be fast. Here is what we need from you:
Order Information Checklist
- 1. Duct type and insulation: Non-insulated, R4.2, R6, or R8 (see our R6 vs R8 comparison if unsure)
- 2. Diameter(s): 4", 5", 6", 7", 8", 9", 10", 12", 14", 16", 18", or 20"
- 3. Length: Standard 25ft sections (other lengths available by request)
- 4. Quantity per size: How many sections of each diameter
- 5. Delivery address: For accurate freight quote
- 6. Delivery timeline: When you need the material on site
Quote turnaround: 24 hours or less on business days. For repeat customers with established pricing, we can confirm orders same-day. Standard lead time from order to shipment: 3-5 business days for stock sizes, 7-10 business days for non-stock sizes or large orders requiring production scheduling.
Why Buy Factory-Direct from USFlexDuct
There are dozens of flex duct brands on the market. Here is why contractors and distributors choose to buy wholesale directly from us:
- Made in the USA. Our 46,000 sq ft factory in Brookshire, TX operates 6 production lines manufacturing flexible ducts, insulated ducts, and industrial hoses. Domestic production means no import tariffs, no customs delays, no 30-day ocean transit — just fast domestic shipping.
- 30 years of manufacturing experience. We have been producing flexible ductwork since the mid-1990s. Our engineering team knows the product inside out — from fiberglass blanket specifications to wire core tensile strength to vapor barrier perm ratings. When you ask a technical question, you get an answer from people who make the product, not salespeople reading a spec sheet.
- Complete product line. Non-insulated aluminum flex, polyester flex, semi-rigid aluminum, PVC combi, R4.2/R6 fiberglass insulated, R6/R8 insulated, soundproof, and industrial hoses — all from one factory. One PO, one shipment, one invoice.
- No middleman markup. You buy from the people who make it. No master distributor, no regional rep, no supply house — each of those adds 15-35% to the price. Factory-direct puts that margin back in your pocket.
- Fast shipping from Texas. Centrally located in the Gulf Coast, our factory ships to anywhere in the continental US within 5-10 business days. Houston-area buyers can pick up same-day from our Brookshire warehouse.
- Consistent quality. Every section comes off the same production lines, tested to the same standards. No batch-to-batch variation from switching between subcontracted factories. UL 181 compliance standard across all insulated duct products.
For a broader overview of how to compare flex duct suppliers, read our guide on flex duct manufacturers in the USA. For help sizing your ductwork before ordering, use our flex duct CFM chart or the HVAC duct sizing guide.