Pemko 145 Series Fire-Rated In...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$143.25
$119.99
Pemko 145 Series threshold cross-section drawing showing 4" (101.6 mm) width, 7/8" (22.2 mm) height, weep hole locations, and optional pan callout

Pemko 145 Series Fire-Rated Interlocking Threshold with Water Return

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Model: 145D72
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$143.25
$119.99
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Pemko 145 Series Fire-Rated Interlocking Threshold with Water Return

The Pemko 145 Series is a fire-rated interlocking threshold engineered for pre-hung door openings where water intrusion and fire code compliance are both requirements. At 4" wide x 7/8" high, it fits standard residential and light commercial door frames and ships with a #61 J-hook and nails for a complete installation. Available in Mill Finish and Dark Bronze Anodized aluminum, in 36" and 72" lengths (custom lengths from 24" to 185" available).

Features & Benefits

  • Fire-Rated: UL 10C positive pressure certified and cUL Listed 4L10 — meets code requirements for fire-rated door assemblies.
  • Water Return System: Integrated channel catches water driven or running under the door and returns it to the exterior, preventing interior moisture damage.
  • Interlocking Design: Mates with the door bottom for a positive seal; reduces air infiltration and sound transmission at the sill.
  • Aluminum Construction: Corrosion-resistant aluminum base; available in Mill Finish (145A) and Dark Bronze Anodized (145D).
  • Complete Installation Hardware: Furnished with #61 J-hook and nails; alternate hooks available for non-standard applications.
  • Flexible Lengths: Stock in 36" and 72"; custom cut from 24" minimum to 185" maximum to fit any opening width.
  • Optional Pan Accessory: Companion pan available separately for enhanced water management in high-exposure conditions.

Technical Specifications

  • Dimensions: 4" W x 7/8" H
  • Material: Aluminum
  • Finish Options: Mill Finish Aluminum (A), Dark Bronze Anodized Aluminum (D)
  • Available Lengths: 36", 72" (custom: 24" min – 185" max)
  • Certifications: BHMA Certified, UL 10C Positive Pressure Fire Rated, cUL Listed 4L10
  • Installation Hardware: #61 J-hook and nails included

Typical Applications

  • Fire-rated door assemblies in commercial and multi-family buildings
  • Pre-hung residential and light commercial entry doors
  • Multi-unit residential and hospitality properties
  • Educational and healthcare facility doorways requiring fire-rated thresholds
  • Weather-exposed openings requiring active water return

Product Specs

Subcategory:
Thresholds
ANSI/BHMA:
BHMA Certified, Fire Rated UL10C Positive Pressure, cUL Listed 4L10
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Thresholds
Product Type:
Residential Thresholds and Sills for Pre-Hung Openings
Commercial/Residential:
Commercial/Residential
Product Model:
145
Product Dimension:
W: 4", H: 7/8"
Product Category:
Door Trim and Accessories
Product Substrate:
Aluminum
Department:
Door Hardware
Series:
145 Series

Pemko 145D72 – Frequently Asked Questions

1) What is the Pemko 145 series threshold designed for?
The Pemko 145 series is an interlocking residential threshold with water return feature. It creates a weather seal at door bottoms while directing water away from the interior. Best suited for exterior residential doors in moderate traffic applications.
2) What door widths and heights does this threshold accommodate?
Available in 4-inch widths with 7/8-inch height profile. Verify your door opening dimensions before ordering. Standard lengths accommodate most residential door widths.
3) How does the interlocking feature work?
The threshold has a raised profile that interlocks with compatible door bottom sweeps or weatherstripping. This creates a continuous seal when the door closes. Requires matching door bottom hardware for proper function.
4) What finishes are available for this threshold?
Available in mill finish aluminum and anodized finishes. Mill finish can be painted on-site if color matching is required. Anodized finishes provide enhanced corrosion resistance and appearance retention.
5) How much weight can this threshold support?
Designed for standard residential door loads and foot traffic. Not intended for heavy commercial use or wheelchair accessibility applications. Verify load requirements with manufacturer specifications for your specific installation.
6) Does this threshold meet accessibility code requirements?
The 7/8-inch height may not comply with ADA requirements for accessible entrances. Check local building codes for height restrictions. Consider beveled or lower profile thresholds for accessible applications.
7) What accessories work with the 145 series threshold?
Requires compatible door bottom sweeps or weatherstripping for proper interlocking function. End caps and joint sealers available for multi-piece installations. Check Pemko compatibility charts for matching components.
8) How is this threshold installed?
Fastens to floor with screws through pre-drilled holes. Requires level, solid substrate for proper installation. Use appropriate sealants at perimeter. Follow manufacturer template for screw locations and door bottom adjustments.
9) Can this threshold be adjusted after installation?
The threshold itself is fixed once installed. Adjustments are made at the door bottom sweep or weatherstripping to achieve proper seal compression. Some shimming possible during initial installation for leveling.
10) What other Pemko threshold options are available?
Pemko offers various threshold profiles including adjustable, heavy duty, and ADA compliant models. Browse Pemko thresholds for alternative heights, widths, and features to match your specific door requirements.
11) How should this threshold be maintained?
Clean debris from water return channels periodically. Check door bottom seal compression seasonally. Inspect fasteners for loosening due to thermal expansion. Re-seal perimeter caulking as needed to maintain weather protection.
12) What field conditions affect threshold performance?
Floor flatness and levelness critical for proper seal. Excessive door deflection can affect interlocking function. Consider thermal expansion in long lengths. Verify adequate drainage away from threshold area to prevent water buildup.
How fast can I get the Pemko 145D72 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 145D72 come with a warranty?
Absolutely. The Pemko 145D72 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 145D72?
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 145D72 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.

Product Reviews

  • 5
    Pemko 145

    Posted by Ethan on Jun 25th 2024

    This is solid and keeps water out effectively.

  • 5
    Great for Keeping Water Out

    Posted by Wesley on Jun 20th 2024

    It’s a great investment for weatherproofing.

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