Model # RD3.25X14X36

Internet #100112513

Store SKU #939084

Store SO SKU #1000685444

null 3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct

3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct

  • Used for HVAC systems or range hood venting between wall studs
  • Durable galvanized steel construction
  • Notched corners to easily connect sections
$737 /each
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Frequently Bought Together

Product Overview

Master Flow's Rectangular Stack Duct is used for HVAC system applications between wall studs as supply and return ducts, and to vent range hoods, kitchen and bath fans between walls as well . Installing rectangular duct between wall studs saves space, and is an easy way to route air up or down a wall and to other stories of a home. It also works in overhead spaces between floor joists or in attics. Sold in "L" sections. Two pieces must be ordered to produce a full section of duct.

  • Sold in Half Sections - 2 pieces needed for complete section of duct
  • Sections easily snap together with no tools necessary
  • Can be cut to needed length with simple tin snips (not included)
  • Notched corners for easily connecting sections, or use cleats (cleats not included)
  • Always seal seams with code-approved mastic, sealant or duct tape (not included)
  • Install with sheet metal screws (not included)

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Length (in.)
3.25 in
Product Width (in.)


Duct Type
3.25 x 14
Galvanized Steel

Warranty / Certifications

Certifications and Listings
No Certifications or Listings

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Customer Reviews

3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct is rated 4.7 out of 5 by 3.
Rated 4 out of 5 by from They worked well, just a bit of work to connect... They worked well, just a bit of work to connect together.
Date published: 2017-07-05
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-07-14
Rated 5 out of 5 by from Great value I bought this section to make a dust/chip collection box for underneath my router table, I also bought a duct that fit my dust collector. Home depot had everything I needed for this job, tin snips, rivet gun, rivets, and the sheet metal. Employees were friendly, and helpful, and didn't "look the other way" when I approached for some help. FYI Home depot online ordering is painless, I have used the online a few times always with good results.
Date published: 2015-03-24
  • y_2017, m_7, d_23, h_8
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