Pemko 324 Series Aluminum Sill...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$36.57
$23.65
Pemko 324 Series Aluminum Sill Nosing cross-section diagram showing 3-1/2" (88.9mm) width dimension

Pemko 324 Series Aluminum Sill Nosing 3-1/2" Wide Threshold Cover

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Model: 324A 36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$36.57
$23.65
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Pemko 324 Series Aluminum Sill Nosing — 3-1/2" Wide Threshold Cover

The Pemko 324 Series Sill Nosing is a UL 4L10 listed threshold cover designed to finish and protect concrete or wood sub-sills in residential and light commercial door openings. At 3-1/2" wide, it covers standard sub-sill widths cleanly, and its low-profile design keeps the threshold assembly tight without interfering with door swing. Available in aluminum alloy (Mill Finish or Dark Bronze Anodized) and extruded bronze/brass, with cut-to-length stock from 24" to 185" to fit single doors, pairs, and oversized openings.

Key Features

  • UL 4L10 Listed — meets fire-rated door assembly requirements for residential and commercial applications
  • 3-1/2" width — covers standard concrete and wood sub-sills in pre-hung door openings
  • 24" to 185" length range — accommodates single doors, pairs, and custom-width openings; field-cuttable
  • Three finish options — Mill Finish Aluminum (324A), Dark Bronze Anodized Aluminum (324D), Mill Finish Extruded Bronze/Brass (324B)
  • No exposed fasteners — secured with mastic and threshold pressure for a clean finished appearance
  • Lightweight — 0.38 lbs; low-profile height keeps the threshold assembly flush

Technical Specifications

  • Width: 3-1/2"
  • Length Range: 24" minimum – 185" maximum
  • Weight: 0.38 lbs
  • Material: Aluminum alloy (324A, 324D) or extruded bronze/brass (324B)
  • UL Listing: 4L10
  • Installation: Mastic and threshold pressure; no visible fasteners

Typical Applications

  • Residential pre-hung door installations — new construction and retrofit
  • Multi-family and apartment building door openings
  • Light commercial entrances requiring UL-listed threshold components
  • Renovation projects covering damaged or uneven sub-sills

Product Specs

Subcategory:
Thresholds
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Thresholds
Product Type:
Residential Thresholds and Sills for Pre-Hung Openings
Product Model:
324
Product Dimension:
W: 3-1/2"
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Pemko 324A 36 – Frequently Asked Questions

How fast can I get the Pemko 324A 36 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko 324A 36 come with a warranty?
Absolutely. The Pemko 324A 36 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko 324A 36?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pemko 324A 36 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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