Pemko 411 Full Mortise Automat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$70.76
$60.67
Pemko 411 Full Mortise Automatic Door Bottom – angled end view showing aluminum housing, drop-bar mechanism, and seal insert

Pemko 411 Full Mortise Automatic Door Bottom with Drop-Bar Seal

(2 reviews) Write a Review

Model: 411ARL-30
Selected Insert Type Option is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$70.76
$60.67
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Pemko 411 Full Mortise Automatic Door Bottom with Drop-Bar Seal

Automatic Sealing for Commercial Door Assemblies

The Pemko 411 is a full mortise automatic door bottom that deploys a drop-bar seal the moment the door closes, then retracts automatically when the door opens — eliminating floor drag and delivering consistent, hands-free sealing performance. Mortised flush into the door bottom, the 411 disappears into the door face for a clean architectural finish. The extruded aluminum housing (W: 9/16", H: 1-3/8") is available in lengths from 28" to 72" and accepts four interchangeable insert types to match the sealing requirement of the opening.

Features & Benefits

  • Automatic Drop-Bar Mechanism: Seal deploys on door close and retracts on open — no floor drag, no manual adjustment, consistent performance across high-traffic openings.
  • Full Mortise Installation: Housing routes into a routed pocket in the door bottom for a flush, low-profile appearance on wood or hollow metal doors.
  • Four Insert Options: Choose EPDM Sponge Neoprene (ARL), Nylon Brush (ANBL), PemkoPrene (APKL), or Sponge Silicone (ASL) to match the sealing demand — draft, dust, moisture, insects, fumes, light, or sound.
  • Aluminum Construction: Extruded aluminum housing resists corrosion and holds dimensional stability in demanding commercial environments.
  • Multiple Lengths: Available in 28", 30", 32", 36", 42", 48", and 72" to fit standard and oversized commercial door widths.
  • Comprehensive Certifications: UL10C positive pressure fire rated, UL1784 smoke tested, BHMA certified, air infiltration tested, ASTM E90 sound tested, cUL Listed 4L10, and GREENGUARD Gold Certified.
  • 5-Year Warranty: Pemko backs the 411 with a 5-year warranty for confidence in long-term commercial installations.

Technical Specifications

  • Model: 411
  • Product Type: Full Mortise Automatic Door Bottom
  • Housing Dimensions: W: 9/16", H: 1-3/8"
  • Available Lengths: 28", 30", 32", 36", 42", 48", 72"
  • Substrate: Aluminum
  • Application: Wood or Hollow Metal Doors
  • Insert Types: EPDM Sponge Neoprene (ARL), Nylon Brush (ANBL), PemkoPrene (APKL), Sponge Silicone (ASL)
  • Certifications: UL10C Positive Pressure Fire Rated, UL1784 Smoke Tested, BHMA Certified, Air Infiltration Tested, ASTM E90 Sound Tested, cUL Listed 4L10, GREENGUARD Gold Certified
  • Commercial/Residential: Commercial
  • Warranty: 5 Year

Typical Applications

  • Fire-rated corridor and stairwell doors in commercial office buildings
  • Healthcare and institutional facilities requiring smoke and sound control
  • Educational facilities and government buildings
  • Multi-family residential common areas and unit entry doors
  • Hospitality properties with high-traffic door openings
  • Retail and industrial facilities requiring draft, dust, and moisture exclusion

Why Pemko 411?

When a door opening must meet fire, smoke, sound, and energy code simultaneously, the 411's multi-certification profile eliminates the need to source separate products for each requirement. The automatic mechanism removes the performance variability of manual sweeps, and the full mortise profile keeps the door face clean — a specification-grade solution for architects, contractors, and facility managers who need the opening to perform reliably from day one.

Product Specs

Features:
Seals to Keep Out Draft, Dust, Moisture, Insects, Fumes, Light, Sound
Application:
Wood or Hollow Metal Doors
Insert Type:
EPDM Sponge Neoprene, ANBL - Nylon Brush, APKL - PemkoPrene, ASL - Sponge Silicone
Warranty:
5 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Automatic Door Bottoms
Subcategory:
Door Bottoms & Door Shoes
ANSI/BHMA:
Air Infiltration Tested, Sound Tested ASTM E90, BHMA Certified, Smoke Tested UL1784, Fire Rated UL10C Positive Pressure, cUL Listed 4L10, GREENGUARD Gold Certified
Commercial/Residential:
Commercial
Product Model:
411
Product Length:
28", 30", 32", 36", 42", 48", 72"
Product Dimension:
W: 9/16", H: 1-3/8"
Product Category:
Door Trim and Accessories
Product Substrate:
Aluminum
Department:
Door Hardware

Pemko 411ARL-30 – Frequently Asked Questions

1) What is the Pemko 411 Full Mortise Automatic Door Bottom used for?
The Pemko 411 provides automatic acoustic and thermal sealing for interior and exterior doors. It mortises into the door bottom and drops a seal when the door closes.
2) What door thickness does the Pemko 411 fit?
Verify door thickness compatibility with manufacturer specifications. Most Pemko automatic door bottoms fit standard commercial door thicknesses but require proper mortise depth.
3) Is the Pemko 411 handed or universal?
Most Pemko automatic door bottoms are universal and work with left or right hand doors. Verify specific model requirements before installation.
4) What finishes are available for the Pemko 411?
Pemko typically offers mill finish aluminum and other architectural finishes. Check specific finish options for your project requirements and building aesthetics.
5) What is the duty rating for the Pemko 411?
Pemko door bottoms are designed for commercial applications with regular use cycles. Verify specific duty rating and cycle testing data for high-traffic applications.
6) Does the Pemko 411 meet building code requirements?
Check local building codes for acoustic and thermal requirements. The Pemko 411 helps meet sealing requirements but verify specific performance ratings for your application.
7) What replacement parts are available for the Pemko 411?
Pemko offers replacement seals and internal components for their automatic door bottoms. Contact for specific part numbers and availability for the 411 model.
8) How do you install the Pemko 411 Full Mortise Door Bottom?
Installation requires mortising the door bottom to manufacturer template dimensions. Use proper routing tools and follow Pemko installation instructions for proper fit and operation.
9) How do you adjust the Pemko 411 seal drop?
Most Pemko automatic door bottoms have adjustable seal drop mechanisms. Follow manufacturer adjustment procedures to ensure proper contact with floor threshold.
10) Are there similar models to the Pemko 411?
Pemko offers various automatic door bottom models for different applications. Browse our Pemko products for alternative models and configurations.
11) What floor conditions work with the Pemko 411?
Works with level floors and proper thresholds. Uneven floors or high thresholds may require adjustment or alternative sealing solutions for effective operation.
How fast can I get the Pemko 411ARL-30 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 411ARL-30 come with a warranty?
Absolutely. The Pemko 411ARL-30 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 411ARL-30?
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 411ARL-30 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

  • 4
    Automatic door bottom

    Posted by Tyler Coviello on Aug 8th 2025

    The Pemko 411 Full Mortise Automatic Door Bottom is an excellent solution for sealing the gap at the bottom of a door without a visible, surface-mounted component. Its "full mortise" design means it's installed discreetly inside the door itself, creating a clean, professional look that doesn't interfere with the door's aesthetics.

  • 4
    Automatic door bottom

    Posted by Tyler Coviello on Jul 18th 2025

    Blocks Sound: It makes a big difference in stopping sound. Great for bedrooms or offices where you want quiet. I noticed less noise right away. Saves Energy: It stops drafts, keeping warm air in during winter and cool air in during summer. This can help lower your energy bills. Keeps Bugs Out: The tight seal also helps keep insects, dust, and dirt out of your home. Built to Last: Pemko products are strong, and this one is too. It feels very durable and works well without issues, even after months of use.

!