Find metal or spiral ducting online here

For all your ductwork needs. Rectangular, round, spiral, oval, stack and suare trunk duct. Take-offs, top, and side-mounted fittings. Elbows, pipe, and flexible ducting. Floor, side wall and ceiling boots. Registers, grilles and filter racks.

Metal and fiberboard ducting, ductwork fittings, supplies and accessories online.

The links on this page will take you to ducting and ductwork fittings online.

Ducting & Ductwork Supplies Online

Go to American HVAC PartsAmerican HVAC Parts linkAmerican HVAC Parts:Ductwork & Fittings | AmericanHVACParts.com
– https://www.americanhvacparts.com//c-21592-duct-work-fittings
Go to Best BuyBest Buy linkBest Buy:Single Wall Ducts, Dual Wall Ducts, Oval Duct, Round Duct, Ceiling Boxes, Ceiling Box Side Collars, Duct Collars, Combustion Air Ducts, Cone Boot Ducts, Cone Perimeter Boxes, Duct Dampers, Drain Pan Ducts, Dryer Vent Ducts, Dual Register Boxes, Duct Booster Fans, Duct Caps, Ductboard Reducers, Duct Connectors, 90 degree Elbows, 45 degree Elbows, Eyebrow Vent Ducts, Flat Collars, Flashing Ducts...
– https://bestbuyheatingandairconditioning.com/ductworkmenu
Go to BudgetBudget linkBudget:Duct Work | BudgetHeating.com
– https://www.budgetheating.com/Duct-Work-s/221
Go to Conservation MartConservation Mart linkConservation Mart:Our Backdraft dampers from Fantech are spring loaded and come in sizes from 4 inches to 12 inches. We also have insulated ducts, duct adaptors and duct connectors in various sizes.
– https://www.conservationmart.com/c-84-dampers-ducts
Go to Ducting.comDucting.com linkDucting.com:Browse our HVAC air Ducts! We specialize in flexible hose for heating, cooling, and venting in outside air to maintain high quality air control. We have the right air duct hoses for the task.
– https://www.ducting.com/ambient-air/hvac-air-ducts
Go to Global IndustrialGlobal Industrial linkGlobal Industrial:HVAC Diffusers, Flexible Ducts, Registers & Grills At Low Everyday Prices. Choose From Many Types & Styles At Global Industrial.
– https://www.globalindustrial.com/c/hvac/ventilation
Go to GraingerGrainger linkGrainger:Go to Grainger for the ductwork, duct fittings, vent caps, and other venting accessories you need for your air distribution system.
– https://www.grainger.com/category/hvac-and-refrigeration/ventilation-equipment-and-supplies/ductwork-venting-fittings-and-caps
Go to Keith SpecialtyKeith Specialty linkKeith Specialty:Metal vent pipe or fuel pipe, galvanized duct work as well as insulated flex duct.
– https://keithspecialty.com/hvac-duct
Go to Lowe'sLowe's linkLowe's:Shop hvac duct & fittings in the heating & cooling section of Lowes.com. Find quality hvac duct & fittings online or in store.
– https://www.lowes.com/pl/HVAC-duct-fittings-Heating-cooling
Go to MenardsMenards linkMenards:Shop our selection of oval, rectangular, round, spiral and flexible ductwork and save BIG!
– https://www.menards.com/main/heating-cooling/ductwork
Go to Shorty's HVACShorty's HVAC linkShorty's HVAC:Buy Atco Flex Ducts from Shortys HVAC. Our HVAC flex ducts come in many sizes and R-values. These flexible heating ducts are ideal for your HVAC needs.
– https://shortyshvac.com
Go to SouthwarkSouthwark linkSouthwark:Southwark Metal Manufacturing is a manufacturer of HVAC sheet metal pipe, duct, and fittings for residential and light commercial applications. - SouthwarkMetal.com
– http://www.southwarkmetal.com
Go to The Duct ShopThe Duct Shop linkThe Duct Shop:Ductwork and duct systems components for HVAC professionals: The Duct Shop has the largest selection of quality metal ductwork supplies, HVAC ductwork, sheet metal ducts, HVAC fittings, and airflow ducts for duct fitters & duct installers. If you need ductwork for your air conditioning projects or heating project, The Duct Shop will ship your ducts quickly, directly to your home or HVAC job site.
– https://www.theductshop.com/shop
Go to The Sheet Metal KidThe Sheet Metal Kid linkThe Sheet Metal Kid:Supplier of Galvanized sheet metal duct, hvac duct supplies, air conditioing ductwork, flex duct, round, dampers.
– https://thesheetmetalkid.com
Go to WestsideWestside linkWestside:Save money on Duct Work and chose from 67 here. We are an authorized wholesale distributor for Fantech, Hart & Cooley, Panasonic, Aprilaire, Broan. Purchase from us and enjoy our wholesale prices, fast shipping, and buyer rewards.
– https://www.westsidewholesale.com/duct-work

A good static pressure to use when calculating duct air flow pressure is between 0.5 and 0.8 inches of water column (iwc).

Ducting & Duct Work:
Terms & Online References

Static Pressure / Air Flow
Pressure Drop / Restriction
Fittings / Trunk
Accessories / Supplies
Rectangular / Square
Duct Board / Fiberboard
Round / Spiral / Oval
Stack / Boxes / Riser
Boots / Elbows
Take-Offs / Top / Side
Supply / Return
Plenum
Insulation / R-Values
Flexible Duct
Vents / Registers / Grilles
Floor / Ceiling / Wall
Filter Grilles
Dampers / Air / Fire
Turning Vanes / Directional
Chimney / Flue / Caps
Dampers / Connectors / Drives / Slips

The links on this page will take you to ductwork and fittings online.

Insulate metal ductwork that is in an unconditioned or enclosed space.

Put a filter access in the return duct, just before the indoor unit, for easy checking and changing.