Pemko 256x6FG Series Thermal B...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$167.82
$76.87
Pemko 256x6FG Series Thermal Barrier Threshold with Frost Guard - 12 13/100"; Width

Pemko 256x6FG Series Thermal Barrier Threshold with Frost Guard - 12 13/100" Width

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Model: 256x6AFG36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$167.82
$76.87
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Pemko 256x6FG Series Thermal Barrier Threshold with Frost Guard - 12 13/100"; Width

Professional Thermal Barrier Door Threshold Solution

The Pemko 256x6FG Series Thermal Barrier Threshold incorporates two 6"; half saddle portions with a black rigid polypropylene thermal key that provides an effective thermal break (FG-Frost Guard). This 12 13/100"; width threshold reduces the transfer of hot and cold temperatures while maintaining ADA compliance when properly installed. Available in aluminum alloy base construction with multiple insert options including Pile Brush (P), Eco-V (V), and ThermoSeal (T) for versatile sealing applications.

Professional Features & Benefits

  • Thermal Break Technology: Rigid polypropylene key between extrusions provides effective thermal barrier, minimizing transfer of hot and cold temperatures for improved energy efficiency.
  • Dual Half Saddle Design: Two 6"; half saddle portions allow for custom configurations when combined with other half saddles for versatile installation options.
  • ADA Compliance Ready: Meets Americans with Disabilities Act requirements when butted to a 1/2"; offset for accessible threshold transitions.
  • Durable Aluminum Construction: Aluminum alloy base material provides long-lasting performance with corrosion resistance for commercial applications.
  • Versatile Fastening System: Standard wood screw fasteners (#10 x 1.5";) with other fastener options available for different substrate requirements.
  • Multiple Certifications: UL 10C positive pressure and UL 4L10 listed with ANSI/BHMA A117.1 and A156.21 compliance for code requirements.
  • Flexible Length Options: Available in lengths from 24"; minimum to 185"; maximum to accommodate various door widths and applications.
  • Integrated Channel Design: Built-in channel system for connecting thermal keys ensures proper thermal barrier continuity.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 12 13/100";
  • Product Group: Door Trim and Accessories
  • Product Model: 256x6FG
  • Product Subgroup: Door Thresholds
  • Product Type: Commercial Thresholds
  • Series: 256x6FG Series
  • Subcategory: Thresholds

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 thermal barrier thresholds deliver professional-grade energy efficiency with aluminum alloy construction and certified thermal break technology. UL 10C positive pressure and UL 4L10 listings ensure code compliance, while ANSI/BHMA A117.1 and A156.21 certifications provide confidence in accessibility and performance standards. Engineered for demanding commercial applications where thermal performance and regulatory compliance are essential.

Product Specs

Subcategory:
Thresholds
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Thresholds
Product Type:
Commercial Thresholds
Product Model:
256x6FG
Product Dimension:
W: 12 13/100"
Product Category:
Door Trim and Accessories
Department:
Door Hardware
Series:
256x6FG Series

Pemko 256x6AFG36 – Frequently Asked Questions

1) Will the Pemko 256x6FG threshold meet ADA requirements on an accessible entrance?
The 256x6FG thermal barrier threshold meets Americans with Disabilities Act requirements when it is butted to a 1/2 inch offset, and it is compliant with ANSI/BHMA A117.1 and A156.21. If your opening does not give you that 1/2 inch offset condition, the ADA claim does not carry, so set the floor condition first and then install.
2) How wide is the Pemko 256x6FG threshold across the opening, and will it clear my door swing?
Overall width is 12-13/100 inches, made up of two 6 inch half saddle portions joined by a thermal key. That is a wide saddle, so you need roughly a foot of clear floor across the sill line, with the door leaf landing between the two saddle halves. On a tight vestibule or a shallow sill, a single half saddle is the better route.
3) Is the Pemko 256x6FG threshold usable on a fire rated door opening?
It carries a UL 10C positive pressure listing and is UL 4L10 listed, which is the listing a specifier looks for on a rated exterior opening. Confirm the rest of the opening assembly matches the rating on the door label.
4) What lengths does the Pemko 256x6FG come in for a standard 36 inch door and a pair of doors?
Stocked lengths are 36 inches and 72 inches in mill finish aluminum. The 36 inch covers a single 3-0 leaf; the 72 inch run suits a pair of 3-0 doors. The series itself is produced from 24 inches minimum up to 185 inches maximum for non-standard openings.
5) What does the Frost Guard (FG) thermal break on this Pemko threshold actually do?
The FG designation means a black rigid polypropylene key sits in a channel between the two aluminum extrusions. Aluminum conducts, so without that break a saddle will sweat or frost on the interior side in cold climates. The polypropylene key interrupts the path and cuts hot and cold transfer through the threshold. The built-in channel is what keeps the thermal key continuous along the full run.
6) What fasteners come with the Pemko 256x6FG, and will they work on a concrete sill?
Standard fastening is #10 x 1-1/2 inch wood screws. Those are for wood substrate only. Over concrete or a masonry sill you need the alternate fastener option, which Pemko offers for this series, so specify the substrate when you order rather than assuming the standard screws will hold.
7) Can I get a weatherseal insert in this Pemko thermal barrier threshold?
Yes. The 256x6FG accepts three insert types: Pile Brush (P), Eco-V (V), and ThermoSeal (T). The insert is what actually contacts the door bottom and seals air and water, so pick it to match the job: pile brush for sweep-style contact, Eco-V and ThermoSeal for compression sealing.
8) Why would I choose a double half saddle threshold instead of one solid saddle?
Two separate 6 inch half saddles let the door land in the gap between them, and they can be combined with other Pemko half saddles to build a custom sill width. A one-piece saddle is simpler and cheaper for a plain replacement. Go to the half saddle arrangement when you need the thermal break in the middle of the run or a non-standard overall width.
9) Is a mill finish aluminum threshold durable enough for a high traffic commercial entrance?
The base is aluminum alloy extrusion, corrosion resistant, and the series is specified into office buildings, schools, healthcare, retail, warehouse, multi-tenant residential and municipal entrances. Mill finish is the standard commercial look and does not show wear the way a coated finish does when traffic scuffs it.
How fast can I get the Pemko 256x6AFG36 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 256x6AFG36 come with a warranty?
Absolutely. The Pemko 256x6AFG36 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 256x6AFG36?
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 256x6AFG36 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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