Pemko 18062 Fire-Rated Door Bo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$29.61
$15.88
Pemko 18062 door bottom weatherstrip cross-section diagram showing 1/4" retainer width, 7/8" brush height, and 5/8" brush extension dimensions

Pemko 18062 Fire-Rated Door Bottom Weatherstrip with 7/8" Nylon Brush and 180-Degree Aluminum Retainer

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Model: 18062CNB-36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$29.61
$15.88
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Pemko 18062 Fire-Rated Door Bottom Weatherstrip with 7/8" Nylon Brush and 180-Degree Aluminum Retainer

Fire-Rated Door Bottom Sealing for Commercial Applications

The Pemko 18062 is a fire-rated door bottom weatherstrip with a 7/8" nylon brush insert and 180-degree aluminum retainer, rated for meeting stile applications on pairs of fire doors. It carries a UL10C positive pressure fire rating and UL1784 smoke testing certification, meeting NFPA 80 compliance requirements. Available in 36", 42", 48", and 84" lengths in clear anodized or dark bronze anodized aluminum.

Features

  • Fire and Smoke Ratings: UL10C positive pressure fire rated and UL1784 smoke tested. Underwriters Laboratory 4L10 certified.
  • Brush Insert: 7/8" nylon brush meshes from 1/32" to 1/16" for consistent sealing across the door gap.
  • Retainer: 180-degree aluminum retainer for secure brush retention and structural durability in high-traffic openings.
  • Lengths: 36", 42", 48", and 84" to fit standard and oversized door widths.
  • Finishes: Clear anodized aluminum with gray nylon brush, or dark bronze anodized aluminum with black nylon brush.
  • Certifications: BHMA Certified, GREENGUARD Gold Certified for low chemical emissions.
  • Warranty: 5 Year manufacturer warranty.

Technical Specifications

  • Model: 18062
  • Insert Type: Nylon Brush
  • Product Dimension: W: 7/8", H: 1/4"
  • Product Length: 36", 42", 48", or 84"
  • Substrate: Aluminum
  • ANSI/BHMA: BHMA Certified, Smoke Tested UL1784, Fire Rated UL10C Positive Pressure, Underwriters Laboratory 4L10, GREENGUARD Gold Certified
  • Application: Commercial

Typical Applications

  • Commercial fire door pairs at meeting stiles
  • Educational, healthcare, and government facility fire-rated openings
  • Multi-family and hospitality fire door compliance
  • Industrial and institutional fire-rated door assemblies

Product Specs

Insert Type:
Nylon Brush
Warranty:
5 Year
Subcategory:
Door Sweeps
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
ANSI/BHMA:
BHMA Certified, Smoke Tested- UL1784, Fire Rated- UL10C- Positive Pressure, Underwriters Laboratory 4L10, GREENGUARD Gold Certified
Commercial/Residential:
Commercial
Product Model:
18062
Product Length:
36", 42", 48", or 84"
Product Dimension:
W: 7/8", H: 1/4"
Product Category:
Door Trim and Accessories
Product Substrate:
Aluminum
Department:
Door Hardware

Pemko 18062CNB-36 – Frequently Asked Questions

1) Can I use the Pemko 18062 brush weatherstrip on a labeled fire door pair?
That is what it is built for. The 18062 is fire rated to UL10C positive pressure and smoke tested to UL1784, with Underwriters Laboratory 4L10 and BHMA certification behind it, and the product data ties it to NFPA 80 compliance. The typical use is the meeting stile of a commercial fire door pair, where the gap between the two leaves has to be sealed against smoke passage without adding anything unlisted to a labeled assembly. A plain weatherstrip with no UL10C rating cannot go on that opening.
2) What length of the Pemko 18062 do I order for a 3-0 door or a 7 foot pair?
Four lengths are offered: 36, 42, 48, and 84 inches. Match the piece to the run you are sealing. A standard 3-0 leaf is 36 inches across the bottom, a 3-6 is 42 and a 4-0 is 48, so those three cover door bottoms on typical commercial leaves. The 84 inch piece runs the full height of a standard 7 foot door, which is the size you want for a meeting stile on a pair. Order by the run, not by the door, since a pair being sealed at both the bottoms and the meeting stile takes different lengths for each.
3) How big a gap will a 7/8 inch nylon brush seal actually close?
The 7/8 inch nylon brush on the 18062 meshes from 1/32 inch to 1/16 inch, which is the compression range it works across. Brush filaments bridge an uneven gap better than a solid seal does, so a door that is slightly out of plumb or a meeting stile with an inconsistent gap still gets contact along the full run. The aluminum retainer that holds the brush measures 7/8 inch wide by 1/4 inch high, so it takes very little depth on the face it mounts to.
4) Does the Pemko 18062 seal the bottom of the door or the gap between a pair of doors?
Both jobs are on its list. Pemko sells the 18062 as a door bottom weatherstrip and also rates it for meeting stile applications on pairs of fire doors, which is the vertical gap where two leaves come together. The reason one part covers both is the nylon brush, which meshes from 1/32 to 1/16 inch and seals against a face rather than needing a threshold or a stop to compress against. Pick the length by the run you are covering, 36, 42 or 48 inches across a door bottom and 84 inches up a standard 7 foot meeting stile.
5) What is the closest cross-brand equivalent to the Pemko 18062 brush door bottom?
The nearest match in construction is the Cal-Royal BW-302, a nylon brush weatherstrip with an extruded aluminum seal retainer - the same basic build as the Pemko 18062, which carries a 7/8 inch nylon brush in a 180-degree aluminum retainer on an aluminum substrate. The difference a specifier cares about is the certification package: the Pemko 18062 is BHMA Certified, UL10C positive pressure fire rated, UL1784 smoke tested, Underwriters Laboratory 4L10, and GREENGUARD Gold Certified, so on a fire door pair at the meeting stile it is the unit that carries the listings an AHJ inspects against NFPA 80. On a non-rated opening where you only need a brush sweeping the gap, the two are doing the same job.
6) I have a Hager 864S in 84 inches but it will not mount at the bottom of the door - what is the right part?
The Hager 864S is an adjustable jamb weatherstrip in clear anodized aluminum with a neoprene insert, so it mounts on the frame - the jamb and head - not on the door bottom, which is why the 84 inch length is a frame run rather than a door width. For the bottom of the door, the Pemko 18062 is the door bottom weatherstrip, with a 7/8 inch nylon brush in a 180-degree aluminum retainer, and it also comes in 84 inches alongside 36, 42, and 48 inch lengths. On a pair of fire doors the 18062 is also rated for the meeting stile application. If you want the frame and the door bottom to read the same, the 18062 in clear anodized aluminum with a gray nylon brush insert matches the clear anodized aluminum of the 864S.
7) Should I use a nylon brush seal or a neoprene seal on a door pair?
Brush and solid seals fail in different places. The 18062 uses a nylon brush that meshes from 1/32 to 1/16 inch, so it keeps contact where two leaves rub past each other or where the gap is not consistent top to bottom, and it does not drag or bind the way a compression seal can at a meeting stile. A neoprene insert seal such as the Hager 862S, sold for smoke and draft control, gives a continuous solid contact line and suits a jamb or head where the closing action compresses the seal squarely. Pick brush for sliding or irregular contact, neoprene for a clean compression stop.
8) Which Pemko 18062 finish should I pick to match the rest of my doors?
Two finishes, and the brush color follows the retainer. Clear anodized aluminum comes with a gray nylon brush; dark bronze anodized aluminum comes with a black nylon brush. Clear anodized disappears against aluminum storefront and mill finish frames, dark bronze against bronze anodized frames and dark painted hollow metal. Both are offered in all four lengths, 36, 42, 48 and 84 inches, so a building standardizing on one look can order every opening in the same finish.
9) Is the Pemko 18062 acceptable for a school or hospital fire door specification?
It carries the certifications those specs are usually written around: UL10C positive pressure fire rating, UL1784 smoke testing, BHMA certification, and GREENGUARD Gold for low chemical emissions, which is the one facilities people ask about for indoor air quality in occupied classrooms and patient areas. It is a commercial-rated product, not a residential one. That combination covers the fire, smoke and emissions lines on a typical institutional gasketing spec for educational, healthcare and government openings.
10) What else can I buy instead of the Pemko 18062 brush weatherstrip?
The closest like-for-like is the Cal-Royal BW-302, a nylon brush weatherstrip in an extruded aluminum seal retainer, so it is the same construction: brush filaments carried in a metal channel rather than a press-on foam or a solid bulb. If the opening is a labeled fire door, though, stay with the 18062, because it is the piece with the UL10C positive pressure fire rating and UL1784 smoke testing on record. On a non-rated interior or utility opening where you just want the brush to close a gap, the Cal-Royal is a straightforward alternative.
11) Can I substitute an 84 inch jamb weatherstrip for the Pemko 18062 at a meeting stile?
No, and the two are not interchangeable even at the same 84 inch length. The Hager 864S is an adjustable jamb weatherstrip with a neoprene insert, made to mount on the frame and seal against the door face. The 18062 mounts on the door and uses a nylon brush that meshes from 1/32 to 1/16 inch, which is what lets it work between two leaves at a meeting stile or under a door bottom. Ordering the jamb piece for a meeting stile leaves you with hardware that has nowhere correct to mount.
12) Is a press-on smoke seal an easier option than the Pemko 18062?
Quicker to install, different product. The Hager 726S is a press-on smoke seal in a charcoal finish, so it goes on with adhesive and no fasteners, which suits a retrofit where you do not want to drill a frame. The 18062 is a nylon brush carried in a 180 degree aluminum retainer, a mechanically fastened piece of hardware that survives traffic the way an adhesive strip will not, and it is the one with the UL10C positive pressure fire rating and UL1784 smoke test on record. On a high-traffic labeled opening, the retainer-mounted brush is the durable answer.
13) Brush seal or neoprene seal - which one should I use for smoke and draft control at the bottom of a door?
They seal by two different mechanisms. The Pemko 18062 uses a 7/8 inch nylon brush that meshes from 1/32 inch to 1/16 inch, so the filaments bend and keep contact across an uneven floor, a threshold, or carpet, and the retainer measures W 7/8 inch by H 1/4 inch. The Hager 862S is a 48 inch weatherstrip with a neoprene insert for smoke and draft control, which seals by compressing a continuous elastomer against the mating surface - a solid contact line rather than a swept one, which is what you want when the closing surface is flat and consistent. Choose the brush where the gap varies along the run or the door drags over floor covering, and the neoprene where the door meets a flat, square surface every time. For the Pemko 18062, the fire and smoke listings are UL10C positive pressure and UL1784.
14) Is there a simpler smoke seal than the Pemko 18062 for a retrofit where I do not want to fit a metal retainer?
The Hager 726S is a smoke seal weatherstrip with press-on installation in a charcoal finish, so it goes on as a strip rather than as a carrier and insert. The Pemko 18062 is the two-part build - a 7/8 inch nylon brush held in a 180-degree aluminum retainer, aluminum substrate, 1/4 inch retainer width - which is what gives it the brush action across a varying gap and the durability the retainer adds in high-traffic openings. If the opening is a fire-rated assembly, note what the 18062 carries: UL10C positive pressure, UL1784 smoke tested, Underwriters Laboratory 4L10, and BHMA Certified, all in the commercial application class.
15) Will a brush seal hold up on a high-traffic corridor door, or will it flatten out?
The brush is held in a 180 degree aluminum retainer rather than a friction channel or an adhesive backing, which is what keeps the filaments captured when a door gets slammed or dragged hundreds of times a day. The retainer is aluminum, and the assembly measures 7/8 inch wide by 1/4 inch high. Pemko lists the 18062 as a commercial product for openings including multi-family, hospitality and institutional fire door assemblies, which are exactly the traffic levels where a stick-on seal peels first at the ends.
16) I need dark door bottoms to match dark seals already on the openings - what are my options?
The Pemko 18062 comes in dark bronze anodized aluminum with a black nylon brush insert, in 36, 42, 48, and 84 inch lengths, so both the retainer and the brush read dark from the corridor side. The Hager 726S carries a charcoal finish, which is the dark option in a press-on smoke seal. Where you are standardizing a floor of openings and want a single dark look at the bottom of the door and around the frame, the dark bronze 18062 is the door bottom in that family, and it holds the UL10C positive pressure fire rating and UL1784 smoke testing for the rated assemblies on that floor.
How fast can I get the Pemko 18062CNB-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 18062CNB-36 come with a warranty?
Absolutely. The Pemko 18062CNB-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 18062CNB-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 18062CNB-36 from ZenSupply?
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Product Reviews

  • 4
    Sweeps

    Posted by Shane on Jun 18th 2025

    Make them fit to your size

  • 5
    Sweep Nice to have on hand for od sized doors

    Posted by Shane on Jun 23rd 2025

    exactly as described worked perfectly for my application.

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