Pemko 151 Series Fire-Rated Fl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$60.57
Pemko 151 Series Fire-Rated Flat Saddle Threshold 3" Wide ADA Compliant

Pemko 151 Series Fire-Rated Flat Saddle Threshold 3" Wide ADA Compliant

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Model: 151D 36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$60.57
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Pemko 151 Series Fire-Rated Flat Saddle Threshold 3"; Wide ADA Compliant

Professional Fire-Rated Threshold Solution

The Pemko 151 Series Flat Saddle Threshold delivers professional-grade door sealing performance with its 3"; wide symmetrical design and 1/4"; overall height. This UL 10C positive pressure fire-rated threshold spans under doors to create smooth transitions while preventing accumulation of mud, ice, and snow. With comprehensive fire safety certifications and ADA compliance, it provides reliable performance for commercial applications requiring barrier-free access and fire safety compliance.

Professional Features & Benefits

  • Optimal Dimensions: 3"; width with 1/4"; overall height provides effective sealing while maintaining low profile for smooth transitions and ADA compliance.
  • Fire Safety Compliance: UL 10C positive pressure fire rating and UL 4L10 listing ensure code compliance for fire-rated door assemblies.
  • ADA Compliant Design: Barrier-free construction meets Americans with Disabilities Act requirements and ANSI/BHMA A117.1 standards for accessible design.
  • Durable Construction: Available in aluminum or brass base materials for long-lasting performance in commercial environments.
  • Flexible Length Options: Available in lengths from 24"; minimum to 185"; maximum to accommodate various door widths and applications.
  • Automatic Door Bottom Compatibility: Creates smooth, even sealing surface when used with automatic door bottoms for enhanced weatherproofing.
  • Easy Installation: Standard SMS #10 X 1"; wood screws included with other fastener options available for different substrate requirements.
  • Manufacturer Warranty: 5 Year warranty coverage for added confidence and protection.

Technical Specifications

  • ANSI/BHMA: BHMA Certified, Fire Rated UL10C Positive Pressure, cUL Listed 4L10
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 3", H: 1/4";
  • Product Group: Door Trim and Accessories
  • Product Model: 151
  • Product Subgroup: Door Thresholds
  • Product Substrate: Aluminum
  • Product Type: Commercial Thresholds
  • Subcategory: Thresholds
  • Warranty: 5 Year

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Pemko Quality?

Pemko 151 Series thresholds deliver professional-grade reliability with aluminum or brass construction and comprehensive fire safety certifications including UL 10C positive pressure rating. The 5 Year warranty coverage demonstrates manufacturer confidence in long-term performance. Engineered for demanding commercial applications where dependable sealing performance and code compliance are essential.

Product Specs

Warranty:
5 Year
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:
Commercial Thresholds
Commercial/Residential:
Commercial
Product Model:
151
Product Dimension:
W: 3", H: 1/4"
Product Category:
Door Trim and Accessories
Product Substrate:
Aluminum
Department:
Door Hardware

Pemko 151D 36 – Frequently Asked Questions

1) Will a Pemko 151 threshold meet ADA for a barrier-free opening?
Yes. The 151 flat saddle sits 1/4 inch tall, which is under the 1/2 inch maximum change in level ADA allows at a doorway, so it needs no bevel or ramp to comply. Width across the saddle is 3 inches, so it tucks under the door and stops short of most jamb-to-jamb transitions that would need a wider plate.
2) Is the Pemko 151 threshold approved for a fire-rated door opening?
It is. The 151 saddle is BHMA certified and carries a UL 10C positive pressure fire rating plus a cUL 4L10 listing, which is the combination an inspector looks for on a rated assembly. Positive pressure matters because that is the test most current codes reference for door openings.
3) What lengths and finishes does the Pemko 151 saddle threshold come in?
Three cut lengths, 36, 48 and 72 inches, each offered in mill finish aluminum or dark bronze anodized aluminum. Pick the length that covers the full jamb opening, not the door leaf width, and trim on site if the frame is odd. A 36 inch piece is short for a standard 36 inch door once you account for jamb-to-jamb, so most single openings take the 48 and get cut down.
4) What screws come with the Pemko 151 threshold and will they work in a concrete slab?
Standard SMS #10 x 1 inch wood screws ship with the threshold. Those are for wood substrate only. Setting into concrete, you will need to drill and plug and supply your own anchors, since the included fasteners will not hold in slab. Pemko does list other fastener options for different substrates.
5) Can one piece cover a pair of doors?
The 72 inch length runs continuously under a pair without a joint, which is what you want at a fire-rated pair since a seam under the meeting stile is a weak point. Two 36 inch pieces butted together is not the same thing. Both mill and dark bronze anodized are offered at 72 inches.
6) Should I use a flat saddle threshold or a panic/thermal barrier type at an exterior door?
A flat saddle like the 151 is the right call where you need a clean, low transition and the sealing comes from the door bottom rather than the threshold itself. It is symmetrical, so there is no interior or exterior side to get backwards, and the flat top does not trap mud, ice or snow the way a raised offset lip does. If you need the threshold itself to form the seal or to interrupt a thermal path at an exterior opening, that is a different profile, not a flat saddle.
7) Does the 151 work with an automatic door bottom?
That is the pairing it is built for. The flat 3 inch top gives an automatic door bottom an even, uninterrupted surface to drop onto across the full sweep, which a raised or ribbed threshold will not do. With a rated door bottom this is a common exterior and cross-corridor combination.
8) Is the Pemko 151 aluminum or brass?
The 151 threshold as stocked is aluminum, in mill finish or dark bronze anodized. Aluminum is the standard commercial choice for a saddle at this profile; brass is a base material offered in the series, but the finishes carried here are the two anodized aluminum options.
9) Will a 1/4 inch saddle hold up to cart and gurney traffic in a hospital or school corridor?
The 151 is a commercial-rated threshold, aluminum bodied, and its low 1/4 inch flat profile is what makes it survivable under rolling loads: there is no raised lip for a cart wheel or gurney caster to catch and pry up. It is specified in healthcare, education, retail and multi-tenant residential for exactly that reason.
How fast can I get the Pemko 151D 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 151D 36 come with a warranty?
Absolutely. The Pemko 151D 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 151D 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 151D 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.

Product Reviews

  • 5
    Thanks again Zen

    Posted by Joshua Thomson on May 13th 2026

    This had to be special-ordered, but it came through in record time. Thanks for getting this to the project team so efficiently.

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